eLinux.org - User contributions [en]

ECE597 Project Network based OGG player

2010-05-18T06:00:05Z

Banistpw: /* Hardware */

[[Category:ECE597]]

This project is part of the ECE597 32-bit Embedded Linux class at Rose-Hulman Institute of Technology in Terre Haute, IN.

The goal of this project is to have the Beagleboard act as a network based mp3 player. The Beagle will be programmed using a custom, protocol for transferring files from a network based server (x86 pc) to a Beagle. Speakers will be attached to the Beagle, where the file will be played back. Possible extensions are a LCD for displaying id3 tag information, and buttons for user interaction (next track, previous track, etc.) on the GPIO interface.

==Hardware==

'''Parts'''

1 - C4 BeagleBoard

1 - .1” (100 thou) header

1 - LCD Display: NHD-C0216Ciz-FS-FBW-3V3

1 - Logic Level Shifter: BOB-08745

1 - 3.3 V Voltage Regulator: LT1086 CT

2 – 10uF Capacitors

3 – 1uF Capacitors

1 – 1kΩ Resistor

'''C4 Beagle Expansion'''

[http://beagle.s3.amazonaws.com/design/Beagle_SRM_C3_0_0.pdf BeagleBoard datasheet (page 94): ]

In order to use the expansion header on the BeagleBoard, a .100'' header was soldered onto J3. The useful pins for this project are noted below.

Pin 1 – 1.8V

Pin 2 – 5V

Pin 23 - SDA

Pin 24 - SCL

Pin 27 – GND

Making I2C2 work on the BeagleBoard can be a bit tricky. Take a look at [[Interfacing_with_I2C_Devices#Beagleboard_I2C2_Enable]] for some tips.

'''LCD Display'''

[http://www.newhavendisplay.com/specs/NHD-C0216CiZ-FSW-FBW-3V3.pdf LCD Datasheet]

[http://www.newhavendisplay.com/app_notes/ST7032.pdf Complete Display Datasheet]

[http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=NHD-C0216CIZ-FSW-FBW-3V3-ND Purchase]

Pin 1 – RST

Pin 2 – SCL

Pin 3 – SDA

Pin 4 – Vss

Pin 5 – Vdd

Pin 6 – Vout

Pin 7 – C1+

Pin 8 – C1-

The 2 capacitors should have a value of 1 uF. The 2 pull-up resistors will not be necessary due to the pull-up resistors in the logic level shifters (see below). The slave address of the I2C interface protocol is 0x7c. Pin 1 will be tied high, pins 2 and 3 are the SCL, SDA pins respectively, and will therefore go through the logic level shifter below. Pin 4 will be tied to ground. Pin 5 will be tied to the 3.3V. Pin 6 will have a 1 uF capacitor tied to pin 5. Pin 7 will have a 1 uF capacitor tied to pin 8. Consult the datasheet for further information.

'''Logic Level Shifter'''

[http://www.sparkfun.com/datasheets/BreakoutBoards/Level-Converter-v10.pdf Schematic]

The 1.8V supplied from the Beagle we be connected to the LV pin. The HV side will be powered with 3.3v from the voltage regulator

'''3.3V Voltage Regulator'''

[http://www.datasheetcatalog.org/datasheet/lineartechnology/1086ffs.pdf Datasheet]

'''Testing Description'''

Initially the level shifter and lcd display were tested using an arduino as we already had working I2C code for the AVR. Once the LCD initilization pattern and was functioning correctly the circuit was then rewired to accommodate the 1.8V of the BeagleBoard.

In the ECE597 lab kit, we were provided a USB->5V adapter for powering the beagle. However there appears to be an issue with newer kernels drawing too much power to actually run the beagle off of USB. The 5V pin on J3 was only outputting 3.9V. In order properly power the Beagle, a wall-wart needs to be used; which caused the 5V pin on J3 to be a steady 5.1v.

Additionally a 1uF capacitor was tied to the 1.8V supplied by the BeagleBoard expansion pin 1 to ensure that in peak power demand, the pin level shifter would have a more reliable power supply. With everything in place the code and circuit were tested. However it was observed that there was not consistent data transmission between the beagle and the LCD. The I2C bus would sometimes report Remote I/O errors. The the i2c level shifter was tested at the new voltage on an oscilloscope and using a 1.8v 400khz (same frequency as the i2c bus) square wave created by a function generator. The behavior was not quite as would be expected. There bus was not reliably reaching 3.3V on the output of the level shifter, and the waves were not square. The output looked more like a charging capacitor. As speed is not a issue in our system, our solution was to reduce the clock frequency of the i2c bus from 400khz to 50khz. This adjustment produced reliable results, which allowed the correct and reliable communication with the LCD.

There are a few command line tests which can be performed in order to verify whether or not I2C is working properly, [http://www.lm-sensors.org/wiki/man/i2cdetect i2cdetect]and
[http://markmail.org/message/7dr7wmqqba7owhml output].

==Software==

===Server Side===
The server is currently a Ubuntu Linux virtual machine. It is running [http://www.icecast.org/ Icecast] as a streaming server. Icecast streams audio to listeners, and is compatible with Nullsoft's Shoutcast.

The server is also running [http://www.icecast.org/ices.php IceS version 2] in playlist mode to provide Icecast with music content. IceS can either read audio data from disk or sample live audio from a sound card and encode it on the fly. Version 2 of IceS has been modified to not allow MP3 files due to licensing issues with the MP3 format. Instead, the server streams a playlist of Ogg Vorbis music files. Ogg Vorbis is an audio compression format. It is roughly comparable to other formats used to store and play digital music, such as MP3, VQF, AAC, and other digital audio formats. It is different from these other formats because it is completely free, open, and unpatented.

To change format of the MP3 files to Ogg, use this command, which does so by dumping the binary into the Ogg encoder:
<pre>
$mpg321 input.mp3 -w - | oggenc -o output.ogg -
</pre>

Note that the ID3 song information tags aren't automatically transitioned from the mp3 using this method. Use the vorbiscomment command to add tags to the file. At least the ARTIST and TITLE should be added for our project. Other tags defined by the standard can be found [http://xiph.org/ogg/vorbis/doc/v-comment.html here].

===Client Side===
The client, running on the Beagle, uses mplayer and perl primarily to interface with the Icecast server. mplayer can take a single argument that is a network address to attach to a network stream. When attached to a network stream, mplayer will output all of the metadata received from the current song as reported by Icecast. The output of mplayer is piped to perl expressions which check over it using regular expressions. The an match for Artist or Title is found, it calls the hardware access code.

==Links==

[http://beagle.s3.amazonaws.com/design/Beagle_SRM_C3_0_0.pdf BeagleBoard datasheet]

[https://patchwork.kernel.org/patch/8322/ Kernel Patch for I2C]

[http://groups.google.com/group/beagleboard/browse_thread/thread/a6c42ef56c6a2da2/1608e6c0f0207a8d?lnk=raot Additional BeagleBoard I2C help]

[http://elinux.org/BeagleBoardPinMux BeagleBoard U-Boot and Kernel Changes to Enable I2C2]

[http://groups.google.com/group/beagleboard/msg/860de7e687539077 Enabling I2C2]

[http://elinux.org/BeagleBoardPWM Latest Kernel Adjustments for I2C2]

[http://www.mail-archive.com/linux-omap@vger.kernel.org/msg02323.html Additional Hints on I2C2]

[http://www.newhavendisplay.com/specs/NHD-C0216CiZ-FSW-FBW-3V3.pdf LCD Datasheet]

[http://www.newhavendisplay.com/app_notes/ST7032.pdf Full LCD Datasheet]

[http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=NHD-C0216CIZ-FSW-FBW-3V3-ND Buy the LCD]

[http://www.sparkfun.com/datasheets/BreakoutBoards/Level-Converter-v10.pdf Logic Level Schematic]

[http://www.sparkfun.com/commerce/product_info.php?products_id=8745 Purchase Level Shifter]

[http://www.datasheetcatalog.org/datasheet/lineartechnology/1086ffs.pdf Voltage Regulator Datasheet]

[http://www.makingthings.com/documentation/how-to/scale-a-5v-signal-to-3.3v Voltage Divider Info]

[http://www.lm-sensors.org/wiki/man/i2cdetect i2cdtect Information]

[http://markmail.org/message/7dr7wmqqba7owhml Results of i2cdetect]

ECE597 Project Network based OGG player

2010-05-18T05:30:21Z

Banistpw: moved ECE597 Project Network based MP3 player to ECE597 Project Network based OGG player

[[Category:ECE597]]

This project is part of the ECE597 32-bit Embedded Linux class at Rose-Hulman Institute of Technology in Terre Haute, IN.

The goal of this project is to have the Beagleboard act as a network based mp3 player. The Beagle will be programmed using a custom, protocol for transferring files from a network based server (x86 pc) to a Beagle. Speakers will be attached to the Beagle, where the file will be played back. Possible extensions are a LCD for displaying id3 tag information, and buttons for user interaction (next track, previous track, etc.) on the GPIO interface.

==Hardware==

'''Parts'''

1 - C4 BeagleBoard

1 - .1” (100 thou) header

1 - LCD Display: NHD-C0216Ciz-FS-FBW-3V3

1 - Logic Level Shifter: BOB-08745

1 - 3.3 V Voltage Regulator: LT1086 CT

2 – 10uF Capacitors

3 – 1uF Capacitors

1 – 1kΩ Resistor

'''C4 Beagle Expansion'''

[http://beagle.s3.amazonaws.com/design/Beagle_SRM_C3_0_0.pdf BeagleBoard datasheet (page 94): ]

In order to use the expansion header on the BeagleBoard, a .100'' header was soldered onto J3. The useful pins for this project are noted below.

Pin 1 – 1.8V

Pin 2 – 5V

Pin 23 - SDA

Pin 24 - SCL

Pin 27 – GND

Making I2C2 work on the BeagleBoard can be a bit tricky. Take a look at [[Interfacing_with_I2C_Devices#Beagleboard_I2C2_Enable]] for some tips.

'''LCD Display'''

[http://www.newhavendisplay.com/specs/NHD-C0216CiZ-FSW-FBW-3V3.pdf LCD Datasheet]

[http://www.newhavendisplay.com/app_notes/ST7032.pdf Complete Display Datasheet]

[http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=NHD-C0216CIZ-FSW-FBW-3V3-ND Purchase]

Pin 1 – RST

Pin 2 – SCL

Pin 3 – SDA

Pin 4 – Vss

Pin 5 – Vdd

Pin 6 – Vout

Pin 7 – C1+

Pin 8 – C1-

The 2 capacitors should have a value of 1 uF. The 2 pull-up resistors will not be necessary due to the pull-up resistors in the logic level shifters (see below). The slave address of the I2C interface protocol is 0x7c. Pin 1 will be tied high, pins 2 and 3 are the SCL, SDA pins respectively, and will therefore go through the logic level shifter below. Pin 4 will be tied to ground. Pin 5 will be tied to the 3.3V. Pin 6 will have a 1 uF capacitor tied to pin 5. Pin 7 will have a 1 uF capacitor tied to pin 8. Consult the datasheet for further information.

'''Logic Level Shifter'''

[http://www.sparkfun.com/datasheets/BreakoutBoards/Level-Converter-v10.pdf Schematic]

The 1.8V supplied from the Beagle we be connected to the LV pin. The HV side will be powered with 3.3v from the voltage regulator

'''3.3V Voltage Regulator'''

[http://www.datasheetcatalog.org/datasheet/lineartechnology/1086ffs.pdf Datasheet]

'''Testing Description'''

Initially the level shifter and lcd display were tested using an arduino as we already had working I2C code for the AVR. Once the LCD initilization pattern and was functioning correctly the circuit was then rewired to accommodate the 1.8V of the BeagleBoard.

In the ECE597 lab kit, we were provided a USB->5V adapter for powering the beagle. However there appears to be an issue with newer kernels drawing too much power to actually run the beagle off of USB. The 5V pin on J3 was only outputting 3.9V. In order properly power the Beagle, a wall-wart needs to be used; which caused the 5V pin on J3 to be a steady 5.1v.

Additionally a 1uF capacitor was tied to the 1.8V supplied by the BeagleBoard expansion pin 1 to ensure that in peak power demand, the pin level shifter would have a more reliable power supply. With everything in place the code and circuit were tested. However it was observed that there was not consistent data transmission between the beagle and the LCD. The I2C bus would sometimes report Remote I/O errors. The the i2c level shifter was tested at the new voltage on an oscilloscope and using a 1.8v 400khz (same frequency as the i2c bus) square wave created by a function generator. The behavior was not quite as would be expected. There bus was not reliably reaching 3.3V on the output of the level shifter, and the waves were not square. The output looked more like a charging capacitor. As speed is not a issue in our system, our solution was to reduce the clock frequency of the i2c bus from 400khz to 50khz. This adjustment produced reliable results, which allowed the correct and reliable communication with the LCD.

There are a few command line tests which can be performed in order to verify whether or not I2C is working properly, [http://www.lm-sensors.org/wiki/man/i2cdetect i2cdetect]and
[http://markmail.org/message/7dr7wmqqba7owhml output].

==Links==

[http://beagle.s3.amazonaws.com/design/Beagle_SRM_C3_0_0.pdf BeagleBoard datasheet]

[https://patchwork.kernel.org/patch/8322/ Kernel Patch for I2C]

[http://groups.google.com/group/beagleboard/browse_thread/thread/a6c42ef56c6a2da2/1608e6c0f0207a8d?lnk=raot Additional BeagleBoard I2C help]

[http://elinux.org/BeagleBoardPinMux BeagleBoard U-Boot and Kernel Changes to Enable I2C2]

[http://groups.google.com/group/beagleboard/msg/860de7e687539077 Enabling I2C2]

[http://elinux.org/BeagleBoardPWM Latest Kernel Adjustments for I2C2]

[http://www.mail-archive.com/linux-omap@vger.kernel.org/msg02323.html Additional Hints on I2C2]

[http://www.newhavendisplay.com/specs/NHD-C0216CiZ-FSW-FBW-3V3.pdf LCD Datasheet]

[http://www.newhavendisplay.com/app_notes/ST7032.pdf Full LCD Datasheet]

[http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=NHD-C0216CIZ-FSW-FBW-3V3-ND Buy the LCD]

[http://www.sparkfun.com/datasheets/BreakoutBoards/Level-Converter-v10.pdf Logic Level Schematic]

[http://www.sparkfun.com/commerce/product_info.php?products_id=8745 Purchase Level Shifter]

[http://www.datasheetcatalog.org/datasheet/lineartechnology/1086ffs.pdf Voltage Regulator Datasheet]

[http://www.makingthings.com/documentation/how-to/scale-a-5v-signal-to-3.3v Voltage Divider Info]

[http://www.lm-sensors.org/wiki/man/i2cdetect i2cdtect Information]

[http://markmail.org/message/7dr7wmqqba7owhml Results of i2cdetect]

ECE597 Project Network based MP3 player

2010-05-18T05:30:21Z

Banistpw: moved ECE597 Project Network based MP3 player to ECE597 Project Network based OGG player

#REDIRECT [[ECE597 Project Network based OGG player]]

User:Banistpw

2010-03-27T03:39:56Z

Banistpw:

Paul Banister

Senior CS/SE

Very familiar but no expert with both Linux and C/C++. I hope to contribute good coding practices and design to a team more familiar with lower level background.

Working on the [[ECE597: MythTV/DSP Pico Projector]] project for ECE597.

[[Category:ECE597]]

== Listings ==

{|
! Number
! Page
! Caption
! Listing
|-
| 2-4
| 2-21
| Hello, World Wmbedded Style
| <pre>
#include <stdio.h>

int bss_var; /* Uninitialized global variable */

int data_var = 1; /* Initialized global variable */

int main(int argc, char **argv)
{
void *stack_var; /* Local variable on the stack */

stack_var = (void *)main; /* Don't let the compiler */
/* optimize it out */

printf("Hello, World! Main is executing at %p\n", stack_var);
printf("This address (%p) is in our stack frame\n", &stack_var);

/* bss section contains uninitialized data */
printf("This address (%p) is in our bss section\n", &bss_var);

/* data section contains initializated data */
printf("This address (%p) is in our data section\n", &data_var);

return 0;
}
</pre>
|-
| 4-3
| 4-15
| Kernel Subdirectory
|<pre>
banistpw@Kratos:/dump/hw/oe$ ls -l linux-omap-2.6/arch/arm/mach-ixp4xx/
total 212
-rwxrwx--x 1 brian elinux 1977 2010-03-11 23:14 avila-pci.c
-rwxrwx--x 1 brian elinux 4658 2010-03-11 23:14 avila-setup.c
-rwxrwx--x 1 brian elinux 12029 2010-03-11 23:14 common.c
-rwxrwx--x 1 brian elinux 12910 2010-03-11 23:14 common-pci.c
-rwxrwx--x 1 brian elinux 1599 2010-03-11 23:14 coyote-pci.c
-rwxrwx--x 1 brian elinux 3452 2010-03-11 23:14 coyote-setup.c
-rwxrwx--x 1 brian elinux 2034 2010-03-11 23:14 dsmg600-pci.c
-rwxrwx--x 1 brian elinux 7394 2010-03-11 23:14 dsmg600-setup.c
-rwxrwx--x 1 brian elinux 1748 2010-03-11 23:14 fsg-pci.c
-rwxrwx--x 1 brian elinux 6795 2010-03-11 23:14 fsg-setup.c
-rwxrwx--x 1 brian elinux 1490 2010-03-11 23:14 gateway7001-pci.c
-rwxrwx--x 1 brian elinux 2646 2010-03-11 23:14 gateway7001-setup.c
-rwxrwx--x 1 brian elinux 12465 2010-03-11 23:14 goramo_mlr.c
-rwxrwx--x 1 brian elinux 2397 2010-03-11 23:14 gtwx5715-pci.c
-rwxrwx--x 1 brian elinux 4738 2010-03-11 23:14 gtwx5715-setup.c
drwxrwx--x 3 brian elinux 4096 2010-03-11 23:14 include
-rwxrwx--x 1 brian elinux 1892 2010-03-11 23:14 ixdp425-pci.c
-rwxrwx--x 1 brian elinux 7610 2010-03-11 23:14 ixdp425-setup.c
-rwxrwx--x 1 brian elinux 1354 2010-03-11 23:14 ixdpg425-pci.c
-rwxrwx--x 1 brian elinux 21565 2010-03-11 23:14 ixp4xx_npe.c
-rwxrwx--x 1 brian elinux 9350 2010-03-11 23:14 ixp4xx_qmgr.c
-rwxrwx--x 1 brian elinux 6431 2010-03-11 23:14 Kconfig
-rwxrwx--x 1 brian elinux 1319 2010-03-11 23:14 Makefile
-rwxrwx--x 1 brian elinux 57 2010-03-11 23:14 Makefile.boot
-rwxrwx--x 1 brian elinux 1869 2010-03-11 23:14 nas100d-pci.c
-rwxrwx--x 1 brian elinux 8127 2010-03-11 23:14 nas100d-setup.c
-rwxrwx--x 1 brian elinux 1666 2010-03-11 23:14 nslu2-pci.c
-rwxrwx--x 1 brian elinux 7147 2010-03-11 23:14 nslu2-setup.c
-rwxrwx--x 1 brian elinux 1468 2010-03-11 23:14 wg302v2-pci.c
-rwxrwx--x 1 brian elinux 2585 2010-03-11 23:14 wg302v2-setup.c
</pre>
|-
| 4-4
| 4-17
| USB in Linux 2.6 .config
|<pre>
banistpw@Kratos:/dump/hw/oe/linux-omap-2.6$ cat .config | grep USB
# CONFIG_USB_ZD1201 is not set
# USB Network Adapters
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_I2C_TINY_USB is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set
# Miscellaneous USB options
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_SUSPEND=y
CONFIG_USB_OTG=y
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
CONFIG_USB_MON=y
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set
# USB Host Controller Drivers
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HWA_HCD is not set
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_MUSB_SOC=y
# OMAP 343x high speed USB support
# CONFIG_USB_MUSB_HOST is not set
# CONFIG_USB_MUSB_PERIPHERAL is not set
CONFIG_USB_MUSB_OTG=y
CONFIG_USB_GADGET_MUSB_HDRC=y
CONFIG_USB_MUSB_HDRC_HCD=y
# CONFIG_MUSB_PIO_ONLY is not set
CONFIG_USB_INVENTRA_DMA=y
# CONFIG_USB_TI_CPPI_DMA is not set
# CONFIG_USB_MUSB_DEBUG is not set
# USB Device Class drivers
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
# also be needed; see USB_STORAGE Help for more info
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_LIBUSUAL is not set
# USB Imaging devices
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# USB port drivers
# CONFIG_USB_SERIAL is not set
# USB Miscellaneous drivers
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_SELECTED=y
# CONFIG_USB_GADGET_AT91 is not set
# CONFIG_USB_GADGET_ATMEL_USBA is not set
# CONFIG_USB_GADGET_FSL_USB2 is not set
# CONFIG_USB_GADGET_LH7A40X is not set
# CONFIG_USB_GADGET_OMAP is not set
# CONFIG_USB_GADGET_PXA25X is not set
# CONFIG_USB_GADGET_R8A66597 is not set
# CONFIG_USB_GADGET_PXA27X is not set
# CONFIG_USB_GADGET_S3C_HSOTG is not set
# CONFIG_USB_GADGET_IMX is not set
# CONFIG_USB_GADGET_S3C2410 is not set
# CONFIG_USB_GADGET_M66592 is not set
# CONFIG_USB_GADGET_AMD5536UDC is not set
# CONFIG_USB_GADGET_FSL_QE is not set
# CONFIG_USB_GADGET_CI13XXX is not set
# CONFIG_USB_GADGET_NET2280 is not set
# CONFIG_USB_GADGET_GOKU is not set
# CONFIG_USB_GADGET_LANGWELL is not set
# CONFIG_USB_GADGET_DUMMY_HCD is not set
CONFIG_USB_GADGET_DUALSPEED=y
# CONFIG_USB_ZERO is not set
# CONFIG_USB_AUDIO is not set
CONFIG_USB_ETH=m
CONFIG_USB_ETH_RNDIS=y
# CONFIG_USB_ETH_EEM is not set
# CONFIG_USB_GADGETFS is not set
# CONFIG_USB_FILE_STORAGE is not set
# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_NOKIA is not set
# CONFIG_USB_G_MULTI is not set
CONFIG_USB_OTG_UTILS=y
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ULPI is not set
CONFIG_TWL4030_USB=y
# CONFIG_NOP_USB_XCEIV is not set
</pre>
|-
| 4-5
| 4-21
| Linux autoconf.h
|<pre>
banistpw@Kratos:/dump/hw/oe/linux-omap-2.6$ cat include/generated/autoconf.h | grep CONFIG_USB
#define CONFIG_USB_MUSB_HDRC 1
#define CONFIG_USB_ETH_RNDIS 1
#define CONFIG_USB_GADGET_MUSB_HDRC 1
#define CONFIG_USB_ARCH_HAS_EHCI 1
#define CONFIG_USB_GADGET_VBUS_DRAW 2
#define CONFIG_USB_OTG_UTILS 1
#define CONFIG_USB_ARCH_HAS_OHCI 1
#define CONFIG_USB_ETH_MODULE 1
#define CONFIG_USB_MUSB_HDRC_HCD 1
#define CONFIG_USB_MON 1
#define CONFIG_USB_OTG 1
#define CONFIG_USB_EHCI_ROOT_HUB_TT 1
#define CONFIG_USB_SUSPEND 1
#define CONFIG_USB_SUPPORT 1
#define CONFIG_USB_EHCI_HCD 1
#define CONFIG_USB_DEVICEFS 1
#define CONFIG_USB_GADGET_SELECTED 1
#define CONFIG_USB_MUSB_SOC 1
#define CONFIG_USB_MUSB_OTG 1
#define CONFIG_USB_DEVICE_CLASS 1
#define CONFIG_USB_ARCH_HAS_HCD 1
#define CONFIG_USB_INVENTRA_DMA 1
#define CONFIG_USB 1
#define CONFIG_USB_GADGET_DUALSPEED 1
#define CONFIG_USB_GADGET 1
</pre>
|-
| 4-5
| 4-22
| Makefile targets
|<pre>
banistpw@Kratos:/dump/hw/oe/linux-omap-2.6$ make ARCH=arm help
Cleaning targets:
clean - Remove most generated files but keep the config and
enough build support to build external modules
mrproper - Remove all generated files + config + various backup files
distclean - mrproper + remove editor backup and patch files

Configuration targets:
config - Update current config utilising a line-oriented program
menuconfig - Update current config utilising a menu based program
xconfig - Update current config utilising a QT based front-end
gconfig - Update current config utilising a GTK based front-end
oldconfig - Update current config utilising a provided .config as base
localmodconfig - Update current config disabling modules not loaded
localyesconfig - Update current config converting local mods to core
silentoldconfig - Same as oldconfig, but quietly, additionally update deps
randconfig - New config with random answer to all options
defconfig - New config with default answer to all options
allmodconfig - New config selecting modules when possible
allyesconfig - New config where all options are accepted with yes
allnoconfig - New config where all options are answered with no

Other generic targets:
all - Build all targets marked with [*]
* vmlinux - Build the bare kernel
* modules - Build all modules
modules_install - Install all modules to INSTALL_MOD_PATH (default: /)
firmware_install- Install all firmware to INSTALL_FW_PATH
(default: $(INSTALL_MOD_PATH)/lib/firmware)
dir/ - Build all files in dir and below
dir/file.[ois] - Build specified target only
dir/file.ko - Build module including final link
modules_prepare - Set up for building external modules
tags/TAGS - Generate tags file for editors
cscope - Generate cscope index
kernelrelease - Output the release version string
kernelversion - Output the version stored in Makefile
headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH
(default: /dump/hw/oe/linux-omap-2.6/usr)

Static analysers
checkstack - Generate a list of stack hogs
namespacecheck - Name space analysis on compiled kernel
versioncheck - Sanity check on version.h usage
includecheck - Check for duplicate included header files
export_report - List the usages of all exported symbols
headers_check - Sanity check on exported headers
headerdep - Detect inclusion cycles in headers

Kernel packaging:
rpm-pkg - Build both source and binary RPM kernel packages
binrpm-pkg - Build only the binary kernel package
deb-pkg - Build the kernel as an deb package
tar-pkg - Build the kernel as an uncompressed tarball
targz-pkg - Build the kernel as a gzip compressed tarball
tarbz2-pkg - Build the kernel as a bzip2 compressed tarball

Documentation targets:
Linux kernel internal documentation in different formats:
htmldocs - HTML
pdfdocs - PDF
psdocs - Postscript
xmldocs - XML DocBook
mandocs - man pages
installmandocs - install man pages generated by mandocs
cleandocs - clean all generated DocBook files

Architecture specific targets (arm):
* zImage - Compressed kernel image (arch/arm/boot/zImage)
Image - Uncompressed kernel image (arch/arm/boot/Image)
* xipImage - XIP kernel image, if configured (arch/arm/boot/xipImage)
uImage - U-Boot wrapped zImage
bootpImage - Combined zImage and initial RAM disk
(supply initrd image via make variable INITRD=<path>)
install - Install uncompressed kernel
zinstall - Install compressed kernel
Install using (your) ~/bin/installkernel or
(distribution) /sbin/installkernel or
install to $(INSTALL_PATH) and run lilo

acs5k_defconfig - Build for acs5k
acs5k_tiny_defconfig - Build for acs5k_tiny
afeb9260_defconfig - Build for afeb9260
am200epdkit_defconfig - Build for am200epdkit
am3517_evm_defconfig - Build for am3517_evm
ams_delta_defconfig - Build for ams_delta
assabet_defconfig - Build for assabet
at572d940hfek_defconfig - Build for at572d940hfek
at91cap9adk_defconfig - Build for at91cap9adk
at91rm9200dk_defconfig - Build for at91rm9200dk
at91rm9200ek_defconfig - Build for at91rm9200ek
at91sam9260ek_defconfig - Build for at91sam9260ek
at91sam9261ek_defconfig - Build for at91sam9261ek
at91sam9263ek_defconfig - Build for at91sam9263ek
at91sam9g20ek_defconfig - Build for at91sam9g20ek
at91sam9rlek_defconfig - Build for at91sam9rlek
ateb9200_defconfig - Build for ateb9200
badge4_defconfig - Build for badge4
bcmring_defconfig - Build for bcmring
cam60_defconfig - Build for cam60
carmeva_defconfig - Build for carmeva
cerfcube_defconfig - Build for cerfcube
cm_t35_defconfig - Build for cm_t35
cm_x2xx_defconfig - Build for cm_x2xx
cm_x300_defconfig - Build for cm_x300
colibri_pxa270_defconfig - Build for colibri_pxa270
colibri_pxa300_defconfig - Build for colibri_pxa300
collie_defconfig - Build for collie
corgi_defconfig - Build for corgi
cpu9260_defconfig - Build for cpu9260
cpu9g20_defconfig - Build for cpu9g20
cpuat91_defconfig - Build for cpuat91
csb337_defconfig - Build for csb337
csb637_defconfig - Build for csb637
da8xx_omapl_defconfig - Build for da8xx_omapl
davinci_all_defconfig - Build for davinci_all
devkit8000_defconfig - Build for devkit8000
dove_defconfig - Build for dove
ebsa110_defconfig - Build for ebsa110
ecbat91_defconfig - Build for ecbat91
edb7211_defconfig - Build for edb7211
em_x270_defconfig - Build for em_x270
ep93xx_defconfig - Build for ep93xx
eseries_pxa_defconfig - Build for eseries_pxa
ezx_defconfig - Build for ezx
footbridge_defconfig - Build for footbridge
fortunet_defconfig - Build for fortunet
h3600_defconfig - Build for h3600
h5000_defconfig - Build for h5000
h7201_defconfig - Build for h7201
h7202_defconfig - Build for h7202
hackkit_defconfig - Build for hackkit
htcherald_defconfig - Build for htcherald
igep0020_defconfig - Build for igep0020
integrator_defconfig - Build for integrator
iop13xx_defconfig - Build for iop13xx
iop32x_defconfig - Build for iop32x
iop33x_defconfig - Build for iop33x
ixp2000_defconfig - Build for ixp2000
ixp23xx_defconfig - Build for ixp23xx
ixp4xx_defconfig - Build for ixp4xx
jornada720_defconfig - Build for jornada720
kafa_defconfig - Build for kafa
kb9202_defconfig - Build for kb9202
kirkwood_defconfig - Build for kirkwood
ks8695_defconfig - Build for ks8695
lart_defconfig - Build for lart
loki_defconfig - Build for loki
lpd270_defconfig - Build for lpd270
lpd7a400_defconfig - Build for lpd7a400
lpd7a404_defconfig - Build for lpd7a404
lubbock_defconfig - Build for lubbock
lusl7200_defconfig - Build for lusl7200
magician_defconfig - Build for magician
mainstone_defconfig - Build for mainstone
mini2440_defconfig - Build for mini2440
msm_defconfig - Build for msm
mv78xx0_defconfig - Build for mv78xx0
mx1ads_defconfig - Build for mx1ads
mx1_defconfig - Build for mx1
mx21_defconfig - Build for mx21
mx27_defconfig - Build for mx27
mx31pdk_defconfig - Build for mx31pdk
mx3_defconfig - Build for mx3
n770_defconfig - Build for n770
n8x0_defconfig - Build for n8x0
neocore926_defconfig - Build for neocore926
neponset_defconfig - Build for neponset
netwinder_defconfig - Build for netwinder
netx_defconfig - Build for netx
nhk8815_defconfig - Build for nhk8815
ns9xxx_defconfig - Build for ns9xxx
nuc910_defconfig - Build for nuc910
nuc950_defconfig - Build for nuc950
nuc960_defconfig - Build for nuc960
omap_2430sdp_defconfig - Build for omap_2430sdp
omap_3430sdp_defconfig - Build for omap_3430sdp
omap_3630sdp_defconfig - Build for omap_3630sdp
omap3_beagle_defconfig - Build for omap3_beagle
omap3_defconfig - Build for omap3
omap3_evm_defconfig - Build for omap3_evm
omap3_pandora_defconfig - Build for omap3_pandora
omap3_touchbook_defconfig - Build for omap3_touchbook
omap_4430sdp_defconfig - Build for omap_4430sdp
omap_apollon_2420_defconfig - Build for omap_apollon_2420
omap_generic_1510_defconfig - Build for omap_generic_1510
omap_generic_1610_defconfig - Build for omap_generic_1610
omap_generic_1710_defconfig - Build for omap_generic_1710
omap_generic_2420_defconfig - Build for omap_generic_2420
omap_h2_1610_defconfig - Build for omap_h2_1610
omap_h4_2420_defconfig - Build for omap_h4_2420
omap_innovator_1510_defconfig - Build for omap_innovator_1510
omap_innovator_1610_defconfig - Build for omap_innovator_1610
omap_ldp_defconfig - Build for omap_ldp
omap_osk_5912_defconfig - Build for omap_osk_5912
omap_perseus2_730_defconfig - Build for omap_perseus2_730
omap_zoom2_defconfig - Build for omap_zoom2
omap_zoom3_defconfig - Build for omap_zoom3
onearm_defconfig - Build for onearm
orion5x_defconfig - Build for orion5x
overo_defconfig - Build for overo
palmte_defconfig - Build for palmte
palmtt_defconfig - Build for palmtt
palmz71_defconfig - Build for palmz71
palmz72_defconfig - Build for palmz72
pcm027_defconfig - Build for pcm027
picotux200_defconfig - Build for picotux200
pleb_defconfig - Build for pleb
pnx4008_defconfig - Build for pnx4008
pxa168_defconfig - Build for pxa168
pxa255-idp_defconfig - Build for pxa255-idp
pxa3xx_defconfig - Build for pxa3xx
pxa910_defconfig - Build for pxa910
qil-a9260_defconfig - Build for qil-a9260
realview_defconfig - Build for realview
realview-smp_defconfig - Build for realview-smp
rpc_defconfig - Build for rpc
rx51_defconfig - Build for rx51
s3c2410_defconfig - Build for s3c2410
s3c6400_defconfig - Build for s3c6400
s5pc100_defconfig - Build for s5pc100
sam9_l9260_defconfig - Build for sam9_l9260
shannon_defconfig - Build for shannon
shark_defconfig - Build for shark
simpad_defconfig - Build for simpad
spitz_defconfig - Build for spitz
stmp378x_defconfig - Build for stmp378x
stmp37xx_defconfig - Build for stmp37xx
sx1_defconfig - Build for sx1
tct_hammer_defconfig - Build for tct_hammer
trizeps4_defconfig - Build for trizeps4
u300_defconfig - Build for u300
u8500_defconfig - Build for u8500
usb-a9260_defconfig - Build for usb-a9260
usb-a9263_defconfig - Build for usb-a9263
versatile_defconfig - Build for versatile
viper_defconfig - Build for viper
xcep_defconfig - Build for xcep
yl9200_defconfig - Build for yl9200
zeus_defconfig - Build for zeus

make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build
make V=2 [targets] 2 => give reason for rebuild of target
make O=dir [targets] Locate all output files in "dir", including .config
make C=1 [targets] Check all c source with $CHECK (sparse by default)
make C=2 [targets] Force check of all c source with $CHECK

Execute "make" or "make all" to build all targets marked with [*]
For further info see the ./README file
|-
| 4-8
| 4-30
| Snippet from .../arch/arm/Konfig
|<pre>
205 source "init/Kconfig"
206
207 source "kernel/Kconfig.freezer"
208
209 menu "System Type"
210
211 config MMU
212 bool "MMU-based Paged Memory Management Support"
213 default y
214 help
215 Select if you want MMU-based virtualised addressing space
216 support by paged memory management. If unsure, say 'Y'.
217
218 choice
219 prompt "ARM system type"
220 default ARCH_VERSATILE
783 source "arch/arm/mach-ixp4xx/Kconfig"
</pre>
|-
| 4-9
| 4-30
| Snippet from .../arch/arm/mach-omap1/Konfig
|<pre>
1 comment "OMAP Core Type"
2 depends on ARCH_OMAP1
3
4 config ARCH_OMAP730
5 depends on ARCH_OMAP1
6 bool "OMAP730 Based System"
7 select CPU_ARM926T
8 select ARCH_OMAP_OTG
</pre>
|-
| 4-10
| 4-32
| Customized .config file snippet
|<pre>
257 CONFIG_MACH_OMAP3_BEAGLE=y
</pre>
|-
| 4-11
| 4-33
| .../arch/arm/mach-omap1 Kernel subdirectory
|<pre>
#
# Makefile for the linux kernel.
#

# Common support
obj-y := io.o id.o sram.o irq.o mux.o flash.o serial.o devices.o
obj-y += clock.o clock_data.o opp_data.o

obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o

obj-$(CONFIG_OMAP_MPU_TIMER) += time.o
obj-$(CONFIG_OMAP_32K_TIMER) += timer32k.o

# Power Management
obj-$(CONFIG_PM) += pm.o sleep.o

# DSP
obj-$(CONFIG_OMAP_MBOX_FWK) += mailbox_mach.o
mailbox_mach-objs := mailbox.o

i2c-omap-$(CONFIG_I2C_OMAP) := i2c.o
obj-y += $(i2c-omap-m) $(i2c-omap-y)

led-y := leds.o

# Specific board support
obj-$(CONFIG_MACH_OMAP_H2) += board-h2.o board-h2-mmc.o
obj-$(CONFIG_MACH_OMAP_INNOVATOR) += board-innovator.o
obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o
obj-$(CONFIG_MACH_OMAP_PERSEUS2) += board-perseus2.o
obj-$(CONFIG_MACH_OMAP_FSAMPLE) += board-fsample.o
obj-$(CONFIG_MACH_OMAP_OSK) += board-osk.o
obj-$(CONFIG_MACH_OMAP_H3) += board-h3.o board-h3-mmc.o
obj-$(CONFIG_MACH_VOICEBLUE) += board-voiceblue.o
obj-$(CONFIG_MACH_OMAP_PALMTE) += board-palmte.o
obj-$(CONFIG_MACH_OMAP_PALMZ71) += board-palmz71.o
obj-$(CONFIG_MACH_OMAP_PALMTT) += board-palmtt.o
obj-$(CONFIG_MACH_NOKIA770) += board-nokia770.o
obj-$(CONFIG_MACH_AMS_DELTA) += board-ams-delta.o
obj-$(CONFIG_MACH_SX1) += board-sx1.o board-sx1-mmc.o
obj-$(CONFIG_MACH_HERALD) += board-htcherald.o

ifeq ($(CONFIG_ARCH_OMAP15XX),y)
# Innovator-1510 FPGA
obj-$(CONFIG_MACH_OMAP_INNOVATOR) += fpga.o
endif

# LEDs support
led-$(CONFIG_MACH_OMAP_H2) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_H3) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_INNOVATOR) += leds-innovator.o
led-$(CONFIG_MACH_OMAP_PERSEUS2) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_OSK) += leds-osk.o
obj-$(CONFIG_LEDS) += $(led-y)

ifneq ($(CONFIG_FB_OMAP),)
obj-y += lcd_dma.o
endif
</pre>
|-
| 5-5
| 5-5
| Assembly file Piggy.S
|<pre>
1 .section .piggydata,#alloc
2 .globl input_data
3 input_data:
4 .incbin "arch/arm/boot/compressed/piggy.gzip"
5 .globl input_data_end
6 input_data_end:
</pre>
|-
| 5-4
| 5-18
| Console setup Code Snippet
|<pre>
837 /*
838 * Set up a list of consoles. Called from init/main.c
839 */
840 static int __init console_setup(char *str)
841 {
842 char buf[sizeof(console_cmdline[0].name) + 4]; /* 4 for index */
843 char *s, *options, *brl_options = NULL;
844 int idx;
845
846 #ifdef CONFIG_A11Y_BRAILLE_CONSOLE
847 if (!memcmp(str, "brl,", 4)) {
848 brl_options = "";
849 str += 4;
850 } else if (!memcmp(str, "brl=", 4)) {
851 brl_options = str + 4;
852 str = strchr(brl_options, ',');
853 if (!str) {
854 printk(KERN_ERR "need port name after brl=\n");
855 return 1;
856 }
857 *(str++) = 0;
858 }
859 #endif
</pre>
|-
| 5-8
| 5-19
| Family of __setup macro Definitions from init.h
|<pre>
224 /*
225 * Only for really core code. See moduleparam.h for the normal way.
226 *
227 * Force the alignment so the compiler doesn't space elements of the
228 * obs_kernel_param "array" too far apart in .init.setup.
229 */
230 #define __setup_param(str, unique_id, fn, early) \
231 static const char __setup_str_##unique_id[] __initconst \
232 __aligned(1) = str; \
233 static struct obs_kernel_param __setup_##unique_id \
234 __used __section(.init.setup) \
235 __attribute__((aligned((sizeof(long))))) \
236 = { __setup_str_##unique_id, fn, early }
237
238 #define __setup(str, fn) \
239 __setup_param(str, fn, fn, 0)
240
241 /* NOTE: fn is as per module_param, not __setup! Emits warning if fn
242 * returns non-zero. */
243 #define early_param(str, fn) \
244 __setup_param(str, fn, fn, 1)
</pre>
|-
| 5-6
| 5-20
| Kernel Command Line Processing
|<pre>
204 extern struct obs_kernel_param __setup_start[], __setup_end[];
205
206 static int __init obsolete_checksetup(char *line)
207 {
208 struct obs_kernel_param *p;
209 int had_early_param = 0;
210
211 p = __setup_start;
212 do {
213 int n = strlen(p->str);
214 if (!strncmp(line, p->str, n)) {
215 if (p->early) {
216 /* Already done in parse_early_param?
217 * (Needs exact match on param part).
218 * Keep iterating, as we can have early
219 * params and __setups of same names 8( */
220 if (line[n] == '\0' || line[n] == '=')
221 had_early_param = 1;
222 } else if (!p->setup_func) {
223 printk(KERN_WARNING "Parameter %s is obsolete,"
224 " ignored\n", p->str);
225 return 1;
226 } else if (p->setup_func(line + n))
227 return 1;
228 }
229 p++;
230 } while (p < __setup_end);
231
232 return had_early_param;
233 }
</pre>
|-
| 5-7
| 5-23
| Example Initialization Routine
|<pre>
369 static struct machine_desc * __init setup_machine(unsigned int nr)
370 {
371 struct machine_desc *list;
372
373 /*
374 * locate machine in the list of supported machines.
375 */
376 list = lookup_machine_type(nr);
377 if (!list) {
378 printk("Machine configuration botched (nr %d), unable "
379 "to continue.\n", nr);
380 while (1);
381 }
382
383 printk("Machine: %s\n", list->name);
384
385 return list;
386 }
</pre>
|-
| 5-8
| 5-23
| Initcall Family of Macros
|<pre>
170 #define __define_initcall(level,fn,id) \
171 static initcall_t __initcall_##fn##id __used \
172 __attribute__((__section__(".initcall" level ".init"))) = fn
173
174 /*
175 * Early initcalls run before initializing SMP.
176 *
177 * Only for built-in code, not modules.
178 */
179 #define early_initcall(fn) __define_initcall("early",fn,early)
180
181 /*
182 * A "pure" initcall has no dependencies on anything else, and purely
183 * initializes variables that couldn't be statically initialized.
184 *
185 * This only exists for built-in code, not for modules.
186 */
187 #define pure_initcall(fn) __define_initcall("0",fn,0)
188
189 #define core_initcall(fn) __define_initcall("1",fn,1)
190 #define core_initcall_sync(fn) __define_initcall("1s",fn,1s)
191 #define postcore_initcall(fn) __define_initcall("2",fn,2)
192 #define postcore_initcall_sync(fn) __define_initcall("2s",fn,2s)
193 #define arch_initcall(fn) __define_initcall("3",fn,3)
194 #define arch_initcall_sync(fn) __define_initcall("3s",fn,3s)
195 #define subsys_initcall(fn) __define_initcall("4",fn,4)
196 #define subsys_initcall_sync(fn) __define_initcall("4s",fn,4s)
197 #define fs_initcall(fn) __define_initcall("5",fn,5)
198 #define fs_initcall_sync(fn) __define_initcall("5s",fn,5s)
199 #define rootfs_initcall(fn) __define_initcall("rootfs",fn,rootfs)
200 #define device_initcall(fn) __define_initcall("6",fn,6)
201 #define device_initcall_sync(fn) __define_initcall("6s",fn,6s)
202 #define late_initcall(fn) __define_initcall("7",fn,7)
203 #define late_initcall_sync(fn) __define_initcall("7s",fn,7s)
204
205 #define __initcall(fn) device_initcall(fn)
</pre>
|-
| 5-9
| 5-26
| Creation of kernel init thread
|<pre>
424 static noinline void __init_refok rest_init(void)
425 __releases(kernel_lock)
426 {
427 int pid;
428
429 rcu_scheduler_starting();
430 kernel_thread(kernel_init, NULL, CLONE_FS | CLONE_SIGHAND);
431 numa_default_policy();
432 pid = kernel_thread(kthreadd, NULL, CLONE_FS | CLONE_FILES);
433 rcu_read_lock();
434 kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns);
435 rcu_read_unlock();
436 unlock_kernel();
437
438 /*
439 * The boot idle thread must execute schedule()
440 * at least once to get things moving:
441 */
442 init_idle_bootup_task(current);
443 preempt_enable_no_resched();
444 schedule();
445 preempt_disable();
446
447 /* Call into cpu_idle with preempt disabled */
448 cpu_idle();
449 }
</pre>
|-
| 5-10
| 5-27
| Initialization via initcalls
|<pre>
765 extern initcall_t __initcall_start[], __initcall_end[], __early_initcall_end[];
766
767 static void __init do_initcalls(void)
768 {
769 initcall_t *fn;
770
771 for (fn = __early_initcall_end; fn < __initcall_end; fn++)
772 do_one_initcall(*fn);
773
774 /* Make sure there is no pending stuff from the initcall sequence */
775 flush_scheduled_work();
776 }
</pre>
|-
| 5-11
| 5-28
| Final Kernel Boot Steps from main.c
|<pre>
814 static noinline int init_post(void)
815 __releases(kernel_lock)
816 {
817 /* need to finish all async __init code before freeing the memory */
818 async_synchronize_full();
819 free_initmem();
820 unlock_kernel();
821 mark_rodata_ro();
822 system_state = SYSTEM_RUNNING;
823 numa_default_policy();
824
825
826 current->signal->flags |= SIGNAL_UNKILLABLE;
827
828 if (ramdisk_execute_command) {
829 run_init_process(ramdisk_execute_command);
830 printk(KERN_WARNING "Failed to execute %s\n",
831 ramdisk_execute_command);
832 }
833
834 /*
835 * We try each of these until one succeeds.
836 *
837 * The Bourne shell can be used instead of init if we are
838 * trying to recover a really broken machine.
839 */
840 if (execute_command) {
841 run_init_process(execute_command);
842 printk(KERN_WARNING "Failed to execute %s. Attempting "
843 "defaults...\n", execute_command);
844 }
845 run_init_process("/sbin/init");
846 run_init_process("/etc/init");
847 run_init_process("/bin/init");
848 run_init_process("/bin/sh");
849
850 panic("No init found. Try passing init= option to kernel. "
851 "See Linux Documentation/init.txt for guidance.");
852 }
</pre>
|-
| 6-1
| 6-7
| Final boot steps from main.c
|<pre>
840 if (execute_command) {
841 run_init_process(execute_command);
842 printk(KERN_WARNING "Failed to execute %s. Attempting "
843 "defaults...\n", execute_command);
844 }
845 run_init_process("/sbin/init");
846 run_init_process("/etc/init");
847 run_init_process("/bin/init");
848 run_init_process("/bin/sh");
849
850 panic("No init found. Try passing init= option to kernel. "
851 "See Linux Documentation/init.txt for guidance.");
</pre>
|-
| 6-3
| 6-12
| Runlevel Directory Structure
| <pre>
banistpw@ubuntu:~$ ls -d1 /etc/rc*
/etc/rc0.d
/etc/rc1.d
/etc/rc2.d
/etc/rc3.d
/etc/rc4.d
/etc/rc5.d
/etc/rc6.d
/etc/rc.local
/etc/rcS.d
</pre>
|-
| 6-4
| 6-12
| Example Runlevel Directory
| <pre>
banistpw@ubuntu:~$ ls -lsa /etc/rc1.d/
total 20
4 drwxr-xr-x 2 root root 4096 2010-03-08 14:14 .
12 drwxr-xr-x 131 root root 12288 2010-03-26 17:35 ..
0 lrwxrwxrwx 1 root root 20 2010-03-08 13:39 K15pulseaudio -> ../init.d/pulseaudio
0 lrwxrwxrwx 1 root root 22 2010-03-08 13:39 K20acpi-support -> ../init.d/acpi-support
0 lrwxrwxrwx 1 root root 20 2010-03-08 13:39 K20kerneloops -> ../init.d/kerneloops
0 lrwxrwxrwx 1 root root 15 2010-03-08 13:39 K20rsync -> ../init.d/rsync
0 lrwxrwxrwx 1 root root 15 2010-03-08 13:39 K20saned -> ../init.d/saned
0 lrwxrwxrwx 1 root root 27 2010-03-08 13:39 K20speech-dispatcher -> ../init.d/speech-dispatcher
0 lrwxrwxrwx 1 root root 19 2010-03-08 13:39 K74bluetooth -> ../init.d/bluetooth
0 lrwxrwxrwx 1 root root 14 2010-03-08 13:39 K80cups -> ../init.d/cups
0 lrwxrwxrwx 1 root root 21 2010-03-08 13:39 K99laptop-mode -> ../init.d/laptop-mode
4 -rw-r--r-- 1 root root 369 2009-09-07 14:58 README
0 lrwxrwxrwx 1 root root 19 2010-03-08 13:39 S30killprocs -> ../init.d/killprocs
0 lrwxrwxrwx 1 root root 19 2010-03-08 13:39 S70dns-clean -> ../init.d/dns-clean
0 lrwxrwxrwx 1 root root 18 2010-03-08 13:39 S70pppd-dns -> ../init.d/pppd-dns
0 lrwxrwxrwx 1 root root 16 2010-03-08 13:39 S90single -> ../init.d/single
</pre>

User:Banistpw

2010-03-27T03:39:05Z

Banistpw:

Paul Banister

Senior CS/SE

Very familiar but no expert with both Linux and C/C++. I hope to contribute good coding practices and design to a team more familiar with lower level background.

Working on the [[ECE597: MythTV/DSP Pico Projector]] project for ECE597.

[[Category:ECE597]]

== Listings ==

{|
! Number
! Page
! Caption
! Listing
|-
| 2-4
| 2-21
| Hello, World Wmbedded Style
| <pre>
#include <stdio.h>

int bss_var; /* Uninitialized global variable */

int data_var = 1; /* Initialized global variable */

int main(int argc, char **argv)
{
void *stack_var; /* Local variable on the stack */

stack_var = (void *)main; /* Don't let the compiler */
/* optimize it out */

printf("Hello, World! Main is executing at %p\n", stack_var);
printf("This address (%p) is in our stack frame\n", &stack_var);

/* bss section contains uninitialized data */
printf("This address (%p) is in our bss section\n", &bss_var);

/* data section contains initializated data */
printf("This address (%p) is in our data section\n", &data_var);

return 0;
}
</pre>
|-
| 4-3
| 4-15
| Kernel Subdirectory
|<pre>
banistpw@Kratos:/dump/hw/oe$ ls -l linux-omap-2.6/arch/arm/mach-ixp4xx/
total 212
-rwxrwx--x 1 brian elinux 1977 2010-03-11 23:14 avila-pci.c
-rwxrwx--x 1 brian elinux 4658 2010-03-11 23:14 avila-setup.c
-rwxrwx--x 1 brian elinux 12029 2010-03-11 23:14 common.c
-rwxrwx--x 1 brian elinux 12910 2010-03-11 23:14 common-pci.c
-rwxrwx--x 1 brian elinux 1599 2010-03-11 23:14 coyote-pci.c
-rwxrwx--x 1 brian elinux 3452 2010-03-11 23:14 coyote-setup.c
-rwxrwx--x 1 brian elinux 2034 2010-03-11 23:14 dsmg600-pci.c
-rwxrwx--x 1 brian elinux 7394 2010-03-11 23:14 dsmg600-setup.c
-rwxrwx--x 1 brian elinux 1748 2010-03-11 23:14 fsg-pci.c
-rwxrwx--x 1 brian elinux 6795 2010-03-11 23:14 fsg-setup.c
-rwxrwx--x 1 brian elinux 1490 2010-03-11 23:14 gateway7001-pci.c
-rwxrwx--x 1 brian elinux 2646 2010-03-11 23:14 gateway7001-setup.c
-rwxrwx--x 1 brian elinux 12465 2010-03-11 23:14 goramo_mlr.c
-rwxrwx--x 1 brian elinux 2397 2010-03-11 23:14 gtwx5715-pci.c
-rwxrwx--x 1 brian elinux 4738 2010-03-11 23:14 gtwx5715-setup.c
drwxrwx--x 3 brian elinux 4096 2010-03-11 23:14 include
-rwxrwx--x 1 brian elinux 1892 2010-03-11 23:14 ixdp425-pci.c
-rwxrwx--x 1 brian elinux 7610 2010-03-11 23:14 ixdp425-setup.c
-rwxrwx--x 1 brian elinux 1354 2010-03-11 23:14 ixdpg425-pci.c
-rwxrwx--x 1 brian elinux 21565 2010-03-11 23:14 ixp4xx_npe.c
-rwxrwx--x 1 brian elinux 9350 2010-03-11 23:14 ixp4xx_qmgr.c
-rwxrwx--x 1 brian elinux 6431 2010-03-11 23:14 Kconfig
-rwxrwx--x 1 brian elinux 1319 2010-03-11 23:14 Makefile
-rwxrwx--x 1 brian elinux 57 2010-03-11 23:14 Makefile.boot
-rwxrwx--x 1 brian elinux 1869 2010-03-11 23:14 nas100d-pci.c
-rwxrwx--x 1 brian elinux 8127 2010-03-11 23:14 nas100d-setup.c
-rwxrwx--x 1 brian elinux 1666 2010-03-11 23:14 nslu2-pci.c
-rwxrwx--x 1 brian elinux 7147 2010-03-11 23:14 nslu2-setup.c
-rwxrwx--x 1 brian elinux 1468 2010-03-11 23:14 wg302v2-pci.c
-rwxrwx--x 1 brian elinux 2585 2010-03-11 23:14 wg302v2-setup.c
</pre>
|-
| 4-4
| 4-17
| USB in Linux 2.6 .config
|<pre>
banistpw@Kratos:/dump/hw/oe/linux-omap-2.6$ cat .config | grep USB
# CONFIG_USB_ZD1201 is not set
# USB Network Adapters
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_I2C_TINY_USB is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set
# Miscellaneous USB options
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_SUSPEND=y
CONFIG_USB_OTG=y
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
CONFIG_USB_MON=y
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set
# USB Host Controller Drivers
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HWA_HCD is not set
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_MUSB_SOC=y
# OMAP 343x high speed USB support
# CONFIG_USB_MUSB_HOST is not set
# CONFIG_USB_MUSB_PERIPHERAL is not set
CONFIG_USB_MUSB_OTG=y
CONFIG_USB_GADGET_MUSB_HDRC=y
CONFIG_USB_MUSB_HDRC_HCD=y
# CONFIG_MUSB_PIO_ONLY is not set
CONFIG_USB_INVENTRA_DMA=y
# CONFIG_USB_TI_CPPI_DMA is not set
# CONFIG_USB_MUSB_DEBUG is not set
# USB Device Class drivers
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
# also be needed; see USB_STORAGE Help for more info
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_LIBUSUAL is not set
# USB Imaging devices
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# USB port drivers
# CONFIG_USB_SERIAL is not set
# USB Miscellaneous drivers
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_SELECTED=y
# CONFIG_USB_GADGET_AT91 is not set
# CONFIG_USB_GADGET_ATMEL_USBA is not set
# CONFIG_USB_GADGET_FSL_USB2 is not set
# CONFIG_USB_GADGET_LH7A40X is not set
# CONFIG_USB_GADGET_OMAP is not set
# CONFIG_USB_GADGET_PXA25X is not set
# CONFIG_USB_GADGET_R8A66597 is not set
# CONFIG_USB_GADGET_PXA27X is not set
# CONFIG_USB_GADGET_S3C_HSOTG is not set
# CONFIG_USB_GADGET_IMX is not set
# CONFIG_USB_GADGET_S3C2410 is not set
# CONFIG_USB_GADGET_M66592 is not set
# CONFIG_USB_GADGET_AMD5536UDC is not set
# CONFIG_USB_GADGET_FSL_QE is not set
# CONFIG_USB_GADGET_CI13XXX is not set
# CONFIG_USB_GADGET_NET2280 is not set
# CONFIG_USB_GADGET_GOKU is not set
# CONFIG_USB_GADGET_LANGWELL is not set
# CONFIG_USB_GADGET_DUMMY_HCD is not set
CONFIG_USB_GADGET_DUALSPEED=y
# CONFIG_USB_ZERO is not set
# CONFIG_USB_AUDIO is not set
CONFIG_USB_ETH=m
CONFIG_USB_ETH_RNDIS=y
# CONFIG_USB_ETH_EEM is not set
# CONFIG_USB_GADGETFS is not set
# CONFIG_USB_FILE_STORAGE is not set
# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_NOKIA is not set
# CONFIG_USB_G_MULTI is not set
CONFIG_USB_OTG_UTILS=y
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ULPI is not set
CONFIG_TWL4030_USB=y
# CONFIG_NOP_USB_XCEIV is not set
</pre>
|-
| 4-5
| 4-21
| Linux autoconf.h
|<pre>
banistpw@Kratos:/dump/hw/oe/linux-omap-2.6$ cat include/generated/autoconf.h | grep CONFIG_USB
#define CONFIG_USB_MUSB_HDRC 1
#define CONFIG_USB_ETH_RNDIS 1
#define CONFIG_USB_GADGET_MUSB_HDRC 1
#define CONFIG_USB_ARCH_HAS_EHCI 1
#define CONFIG_USB_GADGET_VBUS_DRAW 2
#define CONFIG_USB_OTG_UTILS 1
#define CONFIG_USB_ARCH_HAS_OHCI 1
#define CONFIG_USB_ETH_MODULE 1
#define CONFIG_USB_MUSB_HDRC_HCD 1
#define CONFIG_USB_MON 1
#define CONFIG_USB_OTG 1
#define CONFIG_USB_EHCI_ROOT_HUB_TT 1
#define CONFIG_USB_SUSPEND 1
#define CONFIG_USB_SUPPORT 1
#define CONFIG_USB_EHCI_HCD 1
#define CONFIG_USB_DEVICEFS 1
#define CONFIG_USB_GADGET_SELECTED 1
#define CONFIG_USB_MUSB_SOC 1
#define CONFIG_USB_MUSB_OTG 1
#define CONFIG_USB_DEVICE_CLASS 1
#define CONFIG_USB_ARCH_HAS_HCD 1
#define CONFIG_USB_INVENTRA_DMA 1
#define CONFIG_USB 1
#define CONFIG_USB_GADGET_DUALSPEED 1
#define CONFIG_USB_GADGET 1
</pre>
|-
| 4-5
| 4-22
| Makefile targets
|<pre>
banistpw@Kratos:/dump/hw/oe/linux-omap-2.6$ make ARCH=arm help
Cleaning targets:
clean - Remove most generated files but keep the config and
enough build support to build external modules
mrproper - Remove all generated files + config + various backup files
distclean - mrproper + remove editor backup and patch files

Configuration targets:
config - Update current config utilising a line-oriented program
menuconfig - Update current config utilising a menu based program
xconfig - Update current config utilising a QT based front-end
gconfig - Update current config utilising a GTK based front-end
oldconfig - Update current config utilising a provided .config as base
localmodconfig - Update current config disabling modules not loaded
localyesconfig - Update current config converting local mods to core
silentoldconfig - Same as oldconfig, but quietly, additionally update deps
randconfig - New config with random answer to all options
defconfig - New config with default answer to all options
allmodconfig - New config selecting modules when possible
allyesconfig - New config where all options are accepted with yes
allnoconfig - New config where all options are answered with no

Other generic targets:
all - Build all targets marked with [*]
* vmlinux - Build the bare kernel
* modules - Build all modules
modules_install - Install all modules to INSTALL_MOD_PATH (default: /)
firmware_install- Install all firmware to INSTALL_FW_PATH
(default: $(INSTALL_MOD_PATH)/lib/firmware)
dir/ - Build all files in dir and below
dir/file.[ois] - Build specified target only
dir/file.ko - Build module including final link
modules_prepare - Set up for building external modules
tags/TAGS - Generate tags file for editors
cscope - Generate cscope index
kernelrelease - Output the release version string
kernelversion - Output the version stored in Makefile
headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH
(default: /dump/hw/oe/linux-omap-2.6/usr)

Static analysers
checkstack - Generate a list of stack hogs
namespacecheck - Name space analysis on compiled kernel
versioncheck - Sanity check on version.h usage
includecheck - Check for duplicate included header files
export_report - List the usages of all exported symbols
headers_check - Sanity check on exported headers
headerdep - Detect inclusion cycles in headers

Kernel packaging:
rpm-pkg - Build both source and binary RPM kernel packages
binrpm-pkg - Build only the binary kernel package
deb-pkg - Build the kernel as an deb package
tar-pkg - Build the kernel as an uncompressed tarball
targz-pkg - Build the kernel as a gzip compressed tarball
tarbz2-pkg - Build the kernel as a bzip2 compressed tarball

Documentation targets:
Linux kernel internal documentation in different formats:
htmldocs - HTML
pdfdocs - PDF
psdocs - Postscript
xmldocs - XML DocBook
mandocs - man pages
installmandocs - install man pages generated by mandocs
cleandocs - clean all generated DocBook files

Architecture specific targets (arm):
* zImage - Compressed kernel image (arch/arm/boot/zImage)
Image - Uncompressed kernel image (arch/arm/boot/Image)
* xipImage - XIP kernel image, if configured (arch/arm/boot/xipImage)
uImage - U-Boot wrapped zImage
bootpImage - Combined zImage and initial RAM disk
(supply initrd image via make variable INITRD=<path>)
install - Install uncompressed kernel
zinstall - Install compressed kernel
Install using (your) ~/bin/installkernel or
(distribution) /sbin/installkernel or
install to $(INSTALL_PATH) and run lilo

acs5k_defconfig - Build for acs5k
acs5k_tiny_defconfig - Build for acs5k_tiny
afeb9260_defconfig - Build for afeb9260
am200epdkit_defconfig - Build for am200epdkit
am3517_evm_defconfig - Build for am3517_evm
ams_delta_defconfig - Build for ams_delta
assabet_defconfig - Build for assabet
at572d940hfek_defconfig - Build for at572d940hfek
at91cap9adk_defconfig - Build for at91cap9adk
at91rm9200dk_defconfig - Build for at91rm9200dk
at91rm9200ek_defconfig - Build for at91rm9200ek
at91sam9260ek_defconfig - Build for at91sam9260ek
at91sam9261ek_defconfig - Build for at91sam9261ek
at91sam9263ek_defconfig - Build for at91sam9263ek
at91sam9g20ek_defconfig - Build for at91sam9g20ek
at91sam9rlek_defconfig - Build for at91sam9rlek
ateb9200_defconfig - Build for ateb9200
badge4_defconfig - Build for badge4
bcmring_defconfig - Build for bcmring
cam60_defconfig - Build for cam60
carmeva_defconfig - Build for carmeva
cerfcube_defconfig - Build for cerfcube
cm_t35_defconfig - Build for cm_t35
cm_x2xx_defconfig - Build for cm_x2xx
cm_x300_defconfig - Build for cm_x300
colibri_pxa270_defconfig - Build for colibri_pxa270
colibri_pxa300_defconfig - Build for colibri_pxa300
collie_defconfig - Build for collie
corgi_defconfig - Build for corgi
cpu9260_defconfig - Build for cpu9260
cpu9g20_defconfig - Build for cpu9g20
cpuat91_defconfig - Build for cpuat91
csb337_defconfig - Build for csb337
csb637_defconfig - Build for csb637
da8xx_omapl_defconfig - Build for da8xx_omapl
davinci_all_defconfig - Build for davinci_all
devkit8000_defconfig - Build for devkit8000
dove_defconfig - Build for dove
ebsa110_defconfig - Build for ebsa110
ecbat91_defconfig - Build for ecbat91
edb7211_defconfig - Build for edb7211
em_x270_defconfig - Build for em_x270
ep93xx_defconfig - Build for ep93xx
eseries_pxa_defconfig - Build for eseries_pxa
ezx_defconfig - Build for ezx
footbridge_defconfig - Build for footbridge
fortunet_defconfig - Build for fortunet
h3600_defconfig - Build for h3600
h5000_defconfig - Build for h5000
h7201_defconfig - Build for h7201
h7202_defconfig - Build for h7202
hackkit_defconfig - Build for hackkit
htcherald_defconfig - Build for htcherald
igep0020_defconfig - Build for igep0020
integrator_defconfig - Build for integrator
iop13xx_defconfig - Build for iop13xx
iop32x_defconfig - Build for iop32x
iop33x_defconfig - Build for iop33x
ixp2000_defconfig - Build for ixp2000
ixp23xx_defconfig - Build for ixp23xx
ixp4xx_defconfig - Build for ixp4xx
jornada720_defconfig - Build for jornada720
kafa_defconfig - Build for kafa
kb9202_defconfig - Build for kb9202
kirkwood_defconfig - Build for kirkwood
ks8695_defconfig - Build for ks8695
lart_defconfig - Build for lart
loki_defconfig - Build for loki
lpd270_defconfig - Build for lpd270
lpd7a400_defconfig - Build for lpd7a400
lpd7a404_defconfig - Build for lpd7a404
lubbock_defconfig - Build for lubbock
lusl7200_defconfig - Build for lusl7200
magician_defconfig - Build for magician
mainstone_defconfig - Build for mainstone
mini2440_defconfig - Build for mini2440
msm_defconfig - Build for msm
mv78xx0_defconfig - Build for mv78xx0
mx1ads_defconfig - Build for mx1ads
mx1_defconfig - Build for mx1
mx21_defconfig - Build for mx21
mx27_defconfig - Build for mx27
mx31pdk_defconfig - Build for mx31pdk
mx3_defconfig - Build for mx3
n770_defconfig - Build for n770
n8x0_defconfig - Build for n8x0
neocore926_defconfig - Build for neocore926
neponset_defconfig - Build for neponset
netwinder_defconfig - Build for netwinder
netx_defconfig - Build for netx
nhk8815_defconfig - Build for nhk8815
ns9xxx_defconfig - Build for ns9xxx
nuc910_defconfig - Build for nuc910
nuc950_defconfig - Build for nuc950
nuc960_defconfig - Build for nuc960
omap_2430sdp_defconfig - Build for omap_2430sdp
omap_3430sdp_defconfig - Build for omap_3430sdp
omap_3630sdp_defconfig - Build for omap_3630sdp
omap3_beagle_defconfig - Build for omap3_beagle
omap3_defconfig - Build for omap3
omap3_evm_defconfig - Build for omap3_evm
omap3_pandora_defconfig - Build for omap3_pandora
omap3_touchbook_defconfig - Build for omap3_touchbook
omap_4430sdp_defconfig - Build for omap_4430sdp
omap_apollon_2420_defconfig - Build for omap_apollon_2420
omap_generic_1510_defconfig - Build for omap_generic_1510
omap_generic_1610_defconfig - Build for omap_generic_1610
omap_generic_1710_defconfig - Build for omap_generic_1710
omap_generic_2420_defconfig - Build for omap_generic_2420
omap_h2_1610_defconfig - Build for omap_h2_1610
omap_h4_2420_defconfig - Build for omap_h4_2420
omap_innovator_1510_defconfig - Build for omap_innovator_1510
omap_innovator_1610_defconfig - Build for omap_innovator_1610
omap_ldp_defconfig - Build for omap_ldp
omap_osk_5912_defconfig - Build for omap_osk_5912
omap_perseus2_730_defconfig - Build for omap_perseus2_730
omap_zoom2_defconfig - Build for omap_zoom2
omap_zoom3_defconfig - Build for omap_zoom3
onearm_defconfig - Build for onearm
orion5x_defconfig - Build for orion5x
overo_defconfig - Build for overo
palmte_defconfig - Build for palmte
palmtt_defconfig - Build for palmtt
palmz71_defconfig - Build for palmz71
palmz72_defconfig - Build for palmz72
pcm027_defconfig - Build for pcm027
picotux200_defconfig - Build for picotux200
pleb_defconfig - Build for pleb
pnx4008_defconfig - Build for pnx4008
pxa168_defconfig - Build for pxa168
pxa255-idp_defconfig - Build for pxa255-idp
pxa3xx_defconfig - Build for pxa3xx
pxa910_defconfig - Build for pxa910
qil-a9260_defconfig - Build for qil-a9260
realview_defconfig - Build for realview
realview-smp_defconfig - Build for realview-smp
rpc_defconfig - Build for rpc
rx51_defconfig - Build for rx51
s3c2410_defconfig - Build for s3c2410
s3c6400_defconfig - Build for s3c6400
s5pc100_defconfig - Build for s5pc100
sam9_l9260_defconfig - Build for sam9_l9260
shannon_defconfig - Build for shannon
shark_defconfig - Build for shark
simpad_defconfig - Build for simpad
spitz_defconfig - Build for spitz
stmp378x_defconfig - Build for stmp378x
stmp37xx_defconfig - Build for stmp37xx
sx1_defconfig - Build for sx1
tct_hammer_defconfig - Build for tct_hammer
trizeps4_defconfig - Build for trizeps4
u300_defconfig - Build for u300
u8500_defconfig - Build for u8500
usb-a9260_defconfig - Build for usb-a9260
usb-a9263_defconfig - Build for usb-a9263
versatile_defconfig - Build for versatile
viper_defconfig - Build for viper
xcep_defconfig - Build for xcep
yl9200_defconfig - Build for yl9200
zeus_defconfig - Build for zeus

make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build
make V=2 [targets] 2 => give reason for rebuild of target
make O=dir [targets] Locate all output files in "dir", including .config
make C=1 [targets] Check all c source with $CHECK (sparse by default)
make C=2 [targets] Force check of all c source with $CHECK

Execute "make" or "make all" to build all targets marked with [*]
For further info see the ./README file
|-
| 4-8
| 4-30
| Snippet from .../arch/arm/Konfig
|<pre>
205 source "init/Kconfig"
206
207 source "kernel/Kconfig.freezer"
208
209 menu "System Type"
210
211 config MMU
212 bool "MMU-based Paged Memory Management Support"
213 default y
214 help
215 Select if you want MMU-based virtualised addressing space
216 support by paged memory management. If unsure, say 'Y'.
217
218 choice
219 prompt "ARM system type"
220 default ARCH_VERSATILE
783 source "arch/arm/mach-ixp4xx/Kconfig"
</pre>
|-
| 4-9
| 4-30
| Snippet from .../arch/arm/mach-omap1/Konfig
|<pre>
1 comment "OMAP Core Type"
2 depends on ARCH_OMAP1
3
4 config ARCH_OMAP730
5 depends on ARCH_OMAP1
6 bool "OMAP730 Based System"
7 select CPU_ARM926T
8 select ARCH_OMAP_OTG
</pre>
|-
| 4-10
| 4-32
| Customized .config file snippet
|<pre>
257 CONFIG_MACH_OMAP3_BEAGLE=y
</pre>
|-
| 4-11
| 4-33
| .../arch/arm/mach-omap1 Kernel subdirectory
|<pre>
#
# Makefile for the linux kernel.
#

# Common support
obj-y := io.o id.o sram.o irq.o mux.o flash.o serial.o devices.o
obj-y += clock.o clock_data.o opp_data.o

obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o

obj-$(CONFIG_OMAP_MPU_TIMER) += time.o
obj-$(CONFIG_OMAP_32K_TIMER) += timer32k.o

# Power Management
obj-$(CONFIG_PM) += pm.o sleep.o

# DSP
obj-$(CONFIG_OMAP_MBOX_FWK) += mailbox_mach.o
mailbox_mach-objs := mailbox.o

i2c-omap-$(CONFIG_I2C_OMAP) := i2c.o
obj-y += $(i2c-omap-m) $(i2c-omap-y)

led-y := leds.o

# Specific board support
obj-$(CONFIG_MACH_OMAP_H2) += board-h2.o board-h2-mmc.o
obj-$(CONFIG_MACH_OMAP_INNOVATOR) += board-innovator.o
obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o
obj-$(CONFIG_MACH_OMAP_PERSEUS2) += board-perseus2.o
obj-$(CONFIG_MACH_OMAP_FSAMPLE) += board-fsample.o
obj-$(CONFIG_MACH_OMAP_OSK) += board-osk.o
obj-$(CONFIG_MACH_OMAP_H3) += board-h3.o board-h3-mmc.o
obj-$(CONFIG_MACH_VOICEBLUE) += board-voiceblue.o
obj-$(CONFIG_MACH_OMAP_PALMTE) += board-palmte.o
obj-$(CONFIG_MACH_OMAP_PALMZ71) += board-palmz71.o
obj-$(CONFIG_MACH_OMAP_PALMTT) += board-palmtt.o
obj-$(CONFIG_MACH_NOKIA770) += board-nokia770.o
obj-$(CONFIG_MACH_AMS_DELTA) += board-ams-delta.o
obj-$(CONFIG_MACH_SX1) += board-sx1.o board-sx1-mmc.o
obj-$(CONFIG_MACH_HERALD) += board-htcherald.o

ifeq ($(CONFIG_ARCH_OMAP15XX),y)
# Innovator-1510 FPGA
obj-$(CONFIG_MACH_OMAP_INNOVATOR) += fpga.o
endif

# LEDs support
led-$(CONFIG_MACH_OMAP_H2) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_H3) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_INNOVATOR) += leds-innovator.o
led-$(CONFIG_MACH_OMAP_PERSEUS2) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_OSK) += leds-osk.o
obj-$(CONFIG_LEDS) += $(led-y)

ifneq ($(CONFIG_FB_OMAP),)
obj-y += lcd_dma.o
endif
</pre>
|-
| 5-5
| 5-5
| Assembly file Piggy.S
|<pre>
1 .section .piggydata,#alloc
2 .globl input_data
3 input_data:
4 .incbin "arch/arm/boot/compressed/piggy.gzip"
5 .globl input_data_end
6 input_data_end:
</pre>
|-
| 5-4
| 5-18
| Console setup Code Snippet
|<pre>
837 /*
838 * Set up a list of consoles. Called from init/main.c
839 */
840 static int __init console_setup(char *str)
841 {
842 char buf[sizeof(console_cmdline[0].name) + 4]; /* 4 for index */
843 char *s, *options, *brl_options = NULL;
844 int idx;
845
846 #ifdef CONFIG_A11Y_BRAILLE_CONSOLE
847 if (!memcmp(str, "brl,", 4)) {
848 brl_options = "";
849 str += 4;
850 } else if (!memcmp(str, "brl=", 4)) {
851 brl_options = str + 4;
852 str = strchr(brl_options, ',');
853 if (!str) {
854 printk(KERN_ERR "need port name after brl=\n");
855 return 1;
856 }
857 *(str++) = 0;
858 }
859 #endif
</pre>
|-
| 5-8
| 5-19
| Family of __setup macro Definitions from init.h
|<pre>
224 /*
225 * Only for really core code. See moduleparam.h for the normal way.
226 *
227 * Force the alignment so the compiler doesn't space elements of the
228 * obs_kernel_param "array" too far apart in .init.setup.
229 */
230 #define __setup_param(str, unique_id, fn, early) \
231 static const char __setup_str_##unique_id[] __initconst \
232 __aligned(1) = str; \
233 static struct obs_kernel_param __setup_##unique_id \
234 __used __section(.init.setup) \
235 __attribute__((aligned((sizeof(long))))) \
236 = { __setup_str_##unique_id, fn, early }
237
238 #define __setup(str, fn) \
239 __setup_param(str, fn, fn, 0)
240
241 /* NOTE: fn is as per module_param, not __setup! Emits warning if fn
242 * returns non-zero. */
243 #define early_param(str, fn) \
244 __setup_param(str, fn, fn, 1)
</pre>
|-
| 5-6
| 5-20
| Kernel Command Line Processing
|<pre>
204 extern struct obs_kernel_param __setup_start[], __setup_end[];
205
206 static int __init obsolete_checksetup(char *line)
207 {
208 struct obs_kernel_param *p;
209 int had_early_param = 0;
210
211 p = __setup_start;
212 do {
213 int n = strlen(p->str);
214 if (!strncmp(line, p->str, n)) {
215 if (p->early) {
216 /* Already done in parse_early_param?
217 * (Needs exact match on param part).
218 * Keep iterating, as we can have early
219 * params and __setups of same names 8( */
220 if (line[n] == '\0' || line[n] == '=')
221 had_early_param = 1;
222 } else if (!p->setup_func) {
223 printk(KERN_WARNING "Parameter %s is obsolete,"
224 " ignored\n", p->str);
225 return 1;
226 } else if (p->setup_func(line + n))
227 return 1;
228 }
229 p++;
230 } while (p < __setup_end);
231
232 return had_early_param;
233 }
</pre>
|-
| 5-7
| 5-23
| Example Initialization Routine
|<pre>
369 static struct machine_desc * __init setup_machine(unsigned int nr)
370 {
371 struct machine_desc *list;
372
373 /*
374 * locate machine in the list of supported machines.
375 */
376 list = lookup_machine_type(nr);
377 if (!list) {
378 printk("Machine configuration botched (nr %d), unable "
379 "to continue.\n", nr);
380 while (1);
381 }
382
383 printk("Machine: %s\n", list->name);
384
385 return list;
386 }
</pre>
|-
| 5-8
| 5-23
| Initcall Family of Macros
|<pre>
170 #define __define_initcall(level,fn,id) \
171 static initcall_t __initcall_##fn##id __used \
172 __attribute__((__section__(".initcall" level ".init"))) = fn
173
174 /*
175 * Early initcalls run before initializing SMP.
176 *
177 * Only for built-in code, not modules.
178 */
179 #define early_initcall(fn) __define_initcall("early",fn,early)
180
181 /*
182 * A "pure" initcall has no dependencies on anything else, and purely
183 * initializes variables that couldn't be statically initialized.
184 *
185 * This only exists for built-in code, not for modules.
186 */
187 #define pure_initcall(fn) __define_initcall("0",fn,0)
188
189 #define core_initcall(fn) __define_initcall("1",fn,1)
190 #define core_initcall_sync(fn) __define_initcall("1s",fn,1s)
191 #define postcore_initcall(fn) __define_initcall("2",fn,2)
192 #define postcore_initcall_sync(fn) __define_initcall("2s",fn,2s)
193 #define arch_initcall(fn) __define_initcall("3",fn,3)
194 #define arch_initcall_sync(fn) __define_initcall("3s",fn,3s)
195 #define subsys_initcall(fn) __define_initcall("4",fn,4)
196 #define subsys_initcall_sync(fn) __define_initcall("4s",fn,4s)
197 #define fs_initcall(fn) __define_initcall("5",fn,5)
198 #define fs_initcall_sync(fn) __define_initcall("5s",fn,5s)
199 #define rootfs_initcall(fn) __define_initcall("rootfs",fn,rootfs)
200 #define device_initcall(fn) __define_initcall("6",fn,6)
201 #define device_initcall_sync(fn) __define_initcall("6s",fn,6s)
202 #define late_initcall(fn) __define_initcall("7",fn,7)
203 #define late_initcall_sync(fn) __define_initcall("7s",fn,7s)
204
205 #define __initcall(fn) device_initcall(fn)
</pre>
|-
| 5-9
| 5-26
| Creation of kernel init thread
|<pre>
424 static noinline void __init_refok rest_init(void)
425 __releases(kernel_lock)
426 {
427 int pid;
428
429 rcu_scheduler_starting();
430 kernel_thread(kernel_init, NULL, CLONE_FS | CLONE_SIGHAND);
431 numa_default_policy();
432 pid = kernel_thread(kthreadd, NULL, CLONE_FS | CLONE_FILES);
433 rcu_read_lock();
434 kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns);
435 rcu_read_unlock();
436 unlock_kernel();
437
438 /*
439 * The boot idle thread must execute schedule()
440 * at least once to get things moving:
441 */
442 init_idle_bootup_task(current);
443 preempt_enable_no_resched();
444 schedule();
445 preempt_disable();
446
447 /* Call into cpu_idle with preempt disabled */
448 cpu_idle();
449 }
</pre>
|-
| 5-10
| 5-27
| Initialization via initcalls
|<pre>
765 extern initcall_t __initcall_start[], __initcall_end[], __early_initcall_end[];
766
767 static void __init do_initcalls(void)
768 {
769 initcall_t *fn;
770
771 for (fn = __early_initcall_end; fn < __initcall_end; fn++)
772 do_one_initcall(*fn);
773
774 /* Make sure there is no pending stuff from the initcall sequence */
775 flush_scheduled_work();
776 }
</pre>
|-
| 5-11
| 5-28
| Final Kernel Boot Steps from main.c
|<pre>
814 static noinline int init_post(void)
815 __releases(kernel_lock)
816 {
817 /* need to finish all async __init code before freeing the memory */
818 async_synchronize_full();
819 free_initmem();
820 unlock_kernel();
821 mark_rodata_ro();
822 system_state = SYSTEM_RUNNING;
823 numa_default_policy();
824
825
826 current->signal->flags |= SIGNAL_UNKILLABLE;
827
828 if (ramdisk_execute_command) {
829 run_init_process(ramdisk_execute_command);
830 printk(KERN_WARNING "Failed to execute %s\n",
831 ramdisk_execute_command);
832 }
833
834 /*
835 * We try each of these until one succeeds.
836 *
837 * The Bourne shell can be used instead of init if we are
838 * trying to recover a really broken machine.
839 */
840 if (execute_command) {
841 run_init_process(execute_command);
842 printk(KERN_WARNING "Failed to execute %s. Attempting "
843 "defaults...\n", execute_command);
844 }
845 run_init_process("/sbin/init");
846 run_init_process("/etc/init");
847 run_init_process("/bin/init");
848 run_init_process("/bin/sh");
849
850 panic("No init found. Try passing init= option to kernel. "
851 "See Linux Documentation/init.txt for guidance.");
852 }
</pre>
|-
| 6-1
| 6-7
| Final boot steps from main.c
|<pre>
840 if (execute_command) {
841 run_init_process(execute_command);
842 printk(KERN_WARNING "Failed to execute %s. Attempting "
843 "defaults...\n", execute_command);
844 }
845 run_init_process("/sbin/init");
846 run_init_process("/etc/init");
847 run_init_process("/bin/init");
848 run_init_process("/bin/sh");
849
850 panic("No init found. Try passing init= option to kernel. "
851 "See Linux Documentation/init.txt for guidance.");
</pre>
|-
| 6-2
| 6-10
| NFS Restart
| <pre>

</pre>
|-
| 6-3
| 6-12
|
| <pre>

</pre>
|-
| 6-4
| 6-12
| Runlevel Directory Structure
| <pre>
banistpw@ubuntu:~$ ls -d1 /etc/rc*
/etc/rc0.d
/etc/rc1.d
/etc/rc2.d
/etc/rc3.d
/etc/rc4.d
/etc/rc5.d
/etc/rc6.d
/etc/rc.local
/etc/rcS.d
</pre>
|-
| 6-5
| 6-12
| Example Runlevel Directory
| <pre>
banistpw@ubuntu:~$ ls -lsa /etc/rc1.d/
total 20
4 drwxr-xr-x 2 root root 4096 2010-03-08 14:14 .
12 drwxr-xr-x 131 root root 12288 2010-03-26 17:35 ..
0 lrwxrwxrwx 1 root root 20 2010-03-08 13:39 K15pulseaudio -> ../init.d/pulseaudio
0 lrwxrwxrwx 1 root root 22 2010-03-08 13:39 K20acpi-support -> ../init.d/acpi-support
0 lrwxrwxrwx 1 root root 20 2010-03-08 13:39 K20kerneloops -> ../init.d/kerneloops
0 lrwxrwxrwx 1 root root 15 2010-03-08 13:39 K20rsync -> ../init.d/rsync
0 lrwxrwxrwx 1 root root 15 2010-03-08 13:39 K20saned -> ../init.d/saned
0 lrwxrwxrwx 1 root root 27 2010-03-08 13:39 K20speech-dispatcher -> ../init.d/speech-dispatcher
0 lrwxrwxrwx 1 root root 19 2010-03-08 13:39 K74bluetooth -> ../init.d/bluetooth
0 lrwxrwxrwx 1 root root 14 2010-03-08 13:39 K80cups -> ../init.d/cups
0 lrwxrwxrwx 1 root root 21 2010-03-08 13:39 K99laptop-mode -> ../init.d/laptop-mode
4 -rw-r--r-- 1 root root 369 2009-09-07 14:58 README
0 lrwxrwxrwx 1 root root 19 2010-03-08 13:39 S30killprocs -> ../init.d/killprocs
0 lrwxrwxrwx 1 root root 19 2010-03-08 13:39 S70dns-clean -> ../init.d/dns-clean
0 lrwxrwxrwx 1 root root 18 2010-03-08 13:39 S70pppd-dns -> ../init.d/pppd-dns
0 lrwxrwxrwx 1 root root 16 2010-03-08 13:39 S90single -> ../init.d/single
</pre>

User:Banistpw

2010-03-22T01:25:33Z

Banistpw:

User:Banistpw

2010-03-22T01:19:49Z

Banistpw:

Paul Banister

Senior CS/SE

Very familiar but no expert with both Linux and C/C++. I hope to contribute good coding practices and design to a team more familiar with lower level background.

[[Category:ECE597]]

== Listings ==

{|
! Number
! Page
! Caption
! Listing
|-
| 2-4
| 2-21
| Hello, World Wmbedded Style
| <pre>
#include <stdio.h>

int bss_var; /* Uninitialized global variable */

int data_var = 1; /* Initialized global variable */

int main(int argc, char **argv)
{
void *stack_var; /* Local variable on the stack */

stack_var = (void *)main; /* Don't let the compiler */
/* optimize it out */

printf("Hello, World! Main is executing at %p\n", stack_var);
printf("This address (%p) is in our stack frame\n", &stack_var);

/* bss section contains uninitialized data */
printf("This address (%p) is in our bss section\n", &bss_var);

/* data section contains initializated data */
printf("This address (%p) is in our data section\n", &data_var);

return 0;
}
</pre>
|-
| 4-3
| 4-15
| Kernel Subdirectory
|<pre>
banistpw@Kratos:/dump/hw/oe$ ls -l linux-omap-2.6/arch/arm/mach-ixp4xx/
total 212
-rwxrwx--x 1 brian elinux 1977 2010-03-11 23:14 avila-pci.c
-rwxrwx--x 1 brian elinux 4658 2010-03-11 23:14 avila-setup.c
-rwxrwx--x 1 brian elinux 12029 2010-03-11 23:14 common.c
-rwxrwx--x 1 brian elinux 12910 2010-03-11 23:14 common-pci.c
-rwxrwx--x 1 brian elinux 1599 2010-03-11 23:14 coyote-pci.c
-rwxrwx--x 1 brian elinux 3452 2010-03-11 23:14 coyote-setup.c
-rwxrwx--x 1 brian elinux 2034 2010-03-11 23:14 dsmg600-pci.c
-rwxrwx--x 1 brian elinux 7394 2010-03-11 23:14 dsmg600-setup.c
-rwxrwx--x 1 brian elinux 1748 2010-03-11 23:14 fsg-pci.c
-rwxrwx--x 1 brian elinux 6795 2010-03-11 23:14 fsg-setup.c
-rwxrwx--x 1 brian elinux 1490 2010-03-11 23:14 gateway7001-pci.c
-rwxrwx--x 1 brian elinux 2646 2010-03-11 23:14 gateway7001-setup.c
-rwxrwx--x 1 brian elinux 12465 2010-03-11 23:14 goramo_mlr.c
-rwxrwx--x 1 brian elinux 2397 2010-03-11 23:14 gtwx5715-pci.c
-rwxrwx--x 1 brian elinux 4738 2010-03-11 23:14 gtwx5715-setup.c
drwxrwx--x 3 brian elinux 4096 2010-03-11 23:14 include
-rwxrwx--x 1 brian elinux 1892 2010-03-11 23:14 ixdp425-pci.c
-rwxrwx--x 1 brian elinux 7610 2010-03-11 23:14 ixdp425-setup.c
-rwxrwx--x 1 brian elinux 1354 2010-03-11 23:14 ixdpg425-pci.c
-rwxrwx--x 1 brian elinux 21565 2010-03-11 23:14 ixp4xx_npe.c
-rwxrwx--x 1 brian elinux 9350 2010-03-11 23:14 ixp4xx_qmgr.c
-rwxrwx--x 1 brian elinux 6431 2010-03-11 23:14 Kconfig
-rwxrwx--x 1 brian elinux 1319 2010-03-11 23:14 Makefile
-rwxrwx--x 1 brian elinux 57 2010-03-11 23:14 Makefile.boot
-rwxrwx--x 1 brian elinux 1869 2010-03-11 23:14 nas100d-pci.c
-rwxrwx--x 1 brian elinux 8127 2010-03-11 23:14 nas100d-setup.c
-rwxrwx--x 1 brian elinux 1666 2010-03-11 23:14 nslu2-pci.c
-rwxrwx--x 1 brian elinux 7147 2010-03-11 23:14 nslu2-setup.c
-rwxrwx--x 1 brian elinux 1468 2010-03-11 23:14 wg302v2-pci.c
-rwxrwx--x 1 brian elinux 2585 2010-03-11 23:14 wg302v2-setup.c
</pre>
|-
| 4-4
| 4-17
| USB in Linux 2.6 .config
|<pre>
banistpw@Kratos:/dump/hw/oe/linux-omap-2.6$ cat .config | grep USB
# CONFIG_USB_ZD1201 is not set
# USB Network Adapters
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_I2C_TINY_USB is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set
# Miscellaneous USB options
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_SUSPEND=y
CONFIG_USB_OTG=y
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
CONFIG_USB_MON=y
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set
# USB Host Controller Drivers
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HWA_HCD is not set
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_MUSB_SOC=y
# OMAP 343x high speed USB support
# CONFIG_USB_MUSB_HOST is not set
# CONFIG_USB_MUSB_PERIPHERAL is not set
CONFIG_USB_MUSB_OTG=y
CONFIG_USB_GADGET_MUSB_HDRC=y
CONFIG_USB_MUSB_HDRC_HCD=y
# CONFIG_MUSB_PIO_ONLY is not set
CONFIG_USB_INVENTRA_DMA=y
# CONFIG_USB_TI_CPPI_DMA is not set
# CONFIG_USB_MUSB_DEBUG is not set
# USB Device Class drivers
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
# also be needed; see USB_STORAGE Help for more info
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_LIBUSUAL is not set
# USB Imaging devices
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# USB port drivers
# CONFIG_USB_SERIAL is not set
# USB Miscellaneous drivers
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_SELECTED=y
# CONFIG_USB_GADGET_AT91 is not set
# CONFIG_USB_GADGET_ATMEL_USBA is not set
# CONFIG_USB_GADGET_FSL_USB2 is not set
# CONFIG_USB_GADGET_LH7A40X is not set
# CONFIG_USB_GADGET_OMAP is not set
# CONFIG_USB_GADGET_PXA25X is not set
# CONFIG_USB_GADGET_R8A66597 is not set
# CONFIG_USB_GADGET_PXA27X is not set
# CONFIG_USB_GADGET_S3C_HSOTG is not set
# CONFIG_USB_GADGET_IMX is not set
# CONFIG_USB_GADGET_S3C2410 is not set
# CONFIG_USB_GADGET_M66592 is not set
# CONFIG_USB_GADGET_AMD5536UDC is not set
# CONFIG_USB_GADGET_FSL_QE is not set
# CONFIG_USB_GADGET_CI13XXX is not set
# CONFIG_USB_GADGET_NET2280 is not set
# CONFIG_USB_GADGET_GOKU is not set
# CONFIG_USB_GADGET_LANGWELL is not set
# CONFIG_USB_GADGET_DUMMY_HCD is not set
CONFIG_USB_GADGET_DUALSPEED=y
# CONFIG_USB_ZERO is not set
# CONFIG_USB_AUDIO is not set
CONFIG_USB_ETH=m
CONFIG_USB_ETH_RNDIS=y
# CONFIG_USB_ETH_EEM is not set
# CONFIG_USB_GADGETFS is not set
# CONFIG_USB_FILE_STORAGE is not set
# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_NOKIA is not set
# CONFIG_USB_G_MULTI is not set
CONFIG_USB_OTG_UTILS=y
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ULPI is not set
CONFIG_TWL4030_USB=y
# CONFIG_NOP_USB_XCEIV is not set
</pre>
|-
| 4-5
| 4-21
| Linux autoconf.h
|<pre>
banistpw@Kratos:/dump/hw/oe/linux-omap-2.6$ cat include/generated/autoconf.h | grep CONFIG_USB
#define CONFIG_USB_MUSB_HDRC 1
#define CONFIG_USB_ETH_RNDIS 1
#define CONFIG_USB_GADGET_MUSB_HDRC 1
#define CONFIG_USB_ARCH_HAS_EHCI 1
#define CONFIG_USB_GADGET_VBUS_DRAW 2
#define CONFIG_USB_OTG_UTILS 1
#define CONFIG_USB_ARCH_HAS_OHCI 1
#define CONFIG_USB_ETH_MODULE 1
#define CONFIG_USB_MUSB_HDRC_HCD 1
#define CONFIG_USB_MON 1
#define CONFIG_USB_OTG 1
#define CONFIG_USB_EHCI_ROOT_HUB_TT 1
#define CONFIG_USB_SUSPEND 1
#define CONFIG_USB_SUPPORT 1
#define CONFIG_USB_EHCI_HCD 1
#define CONFIG_USB_DEVICEFS 1
#define CONFIG_USB_GADGET_SELECTED 1
#define CONFIG_USB_MUSB_SOC 1
#define CONFIG_USB_MUSB_OTG 1
#define CONFIG_USB_DEVICE_CLASS 1
#define CONFIG_USB_ARCH_HAS_HCD 1
#define CONFIG_USB_INVENTRA_DMA 1
#define CONFIG_USB 1
#define CONFIG_USB_GADGET_DUALSPEED 1
#define CONFIG_USB_GADGET 1
</pre>
|-
| 4-5
| 4-22
| Makefile targets
|<pre>
banistpw@Kratos:/dump/hw/oe/linux-omap-2.6$ make ARCH=arm help
Cleaning targets:
clean - Remove most generated files but keep the config and
enough build support to build external modules
mrproper - Remove all generated files + config + various backup files
distclean - mrproper + remove editor backup and patch files

Configuration targets:
config - Update current config utilising a line-oriented program
menuconfig - Update current config utilising a menu based program
xconfig - Update current config utilising a QT based front-end
gconfig - Update current config utilising a GTK based front-end
oldconfig - Update current config utilising a provided .config as base
localmodconfig - Update current config disabling modules not loaded
localyesconfig - Update current config converting local mods to core
silentoldconfig - Same as oldconfig, but quietly, additionally update deps
randconfig - New config with random answer to all options
defconfig - New config with default answer to all options
allmodconfig - New config selecting modules when possible
allyesconfig - New config where all options are accepted with yes
allnoconfig - New config where all options are answered with no

Other generic targets:
all - Build all targets marked with [*]
* vmlinux - Build the bare kernel
* modules - Build all modules
modules_install - Install all modules to INSTALL_MOD_PATH (default: /)
firmware_install- Install all firmware to INSTALL_FW_PATH
(default: $(INSTALL_MOD_PATH)/lib/firmware)
dir/ - Build all files in dir and below
dir/file.[ois] - Build specified target only
dir/file.ko - Build module including final link
modules_prepare - Set up for building external modules
tags/TAGS - Generate tags file for editors
cscope - Generate cscope index
kernelrelease - Output the release version string
kernelversion - Output the version stored in Makefile
headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH
(default: /dump/hw/oe/linux-omap-2.6/usr)

Static analysers
checkstack - Generate a list of stack hogs
namespacecheck - Name space analysis on compiled kernel
versioncheck - Sanity check on version.h usage
includecheck - Check for duplicate included header files
export_report - List the usages of all exported symbols
headers_check - Sanity check on exported headers
headerdep - Detect inclusion cycles in headers

Kernel packaging:
rpm-pkg - Build both source and binary RPM kernel packages
binrpm-pkg - Build only the binary kernel package
deb-pkg - Build the kernel as an deb package
tar-pkg - Build the kernel as an uncompressed tarball
targz-pkg - Build the kernel as a gzip compressed tarball
tarbz2-pkg - Build the kernel as a bzip2 compressed tarball

Documentation targets:
Linux kernel internal documentation in different formats:
htmldocs - HTML
pdfdocs - PDF
psdocs - Postscript
xmldocs - XML DocBook
mandocs - man pages
installmandocs - install man pages generated by mandocs
cleandocs - clean all generated DocBook files

Architecture specific targets (arm):
* zImage - Compressed kernel image (arch/arm/boot/zImage)
Image - Uncompressed kernel image (arch/arm/boot/Image)
* xipImage - XIP kernel image, if configured (arch/arm/boot/xipImage)
uImage - U-Boot wrapped zImage
bootpImage - Combined zImage and initial RAM disk
(supply initrd image via make variable INITRD=<path>)
install - Install uncompressed kernel
zinstall - Install compressed kernel
Install using (your) ~/bin/installkernel or
(distribution) /sbin/installkernel or
install to $(INSTALL_PATH) and run lilo

acs5k_defconfig - Build for acs5k
acs5k_tiny_defconfig - Build for acs5k_tiny
afeb9260_defconfig - Build for afeb9260
am200epdkit_defconfig - Build for am200epdkit
am3517_evm_defconfig - Build for am3517_evm
ams_delta_defconfig - Build for ams_delta
assabet_defconfig - Build for assabet
at572d940hfek_defconfig - Build for at572d940hfek
at91cap9adk_defconfig - Build for at91cap9adk
at91rm9200dk_defconfig - Build for at91rm9200dk
at91rm9200ek_defconfig - Build for at91rm9200ek
at91sam9260ek_defconfig - Build for at91sam9260ek
at91sam9261ek_defconfig - Build for at91sam9261ek
at91sam9263ek_defconfig - Build for at91sam9263ek
at91sam9g20ek_defconfig - Build for at91sam9g20ek
at91sam9rlek_defconfig - Build for at91sam9rlek
ateb9200_defconfig - Build for ateb9200
badge4_defconfig - Build for badge4
bcmring_defconfig - Build for bcmring
cam60_defconfig - Build for cam60
carmeva_defconfig - Build for carmeva
cerfcube_defconfig - Build for cerfcube
cm_t35_defconfig - Build for cm_t35
cm_x2xx_defconfig - Build for cm_x2xx
cm_x300_defconfig - Build for cm_x300
colibri_pxa270_defconfig - Build for colibri_pxa270
colibri_pxa300_defconfig - Build for colibri_pxa300
collie_defconfig - Build for collie
corgi_defconfig - Build for corgi
cpu9260_defconfig - Build for cpu9260
cpu9g20_defconfig - Build for cpu9g20
cpuat91_defconfig - Build for cpuat91
csb337_defconfig - Build for csb337
csb637_defconfig - Build for csb637
da8xx_omapl_defconfig - Build for da8xx_omapl
davinci_all_defconfig - Build for davinci_all
devkit8000_defconfig - Build for devkit8000
dove_defconfig - Build for dove
ebsa110_defconfig - Build for ebsa110
ecbat91_defconfig - Build for ecbat91
edb7211_defconfig - Build for edb7211
em_x270_defconfig - Build for em_x270
ep93xx_defconfig - Build for ep93xx
eseries_pxa_defconfig - Build for eseries_pxa
ezx_defconfig - Build for ezx
footbridge_defconfig - Build for footbridge
fortunet_defconfig - Build for fortunet
h3600_defconfig - Build for h3600
h5000_defconfig - Build for h5000
h7201_defconfig - Build for h7201
h7202_defconfig - Build for h7202
hackkit_defconfig - Build for hackkit
htcherald_defconfig - Build for htcherald
igep0020_defconfig - Build for igep0020
integrator_defconfig - Build for integrator
iop13xx_defconfig - Build for iop13xx
iop32x_defconfig - Build for iop32x
iop33x_defconfig - Build for iop33x
ixp2000_defconfig - Build for ixp2000
ixp23xx_defconfig - Build for ixp23xx
ixp4xx_defconfig - Build for ixp4xx
jornada720_defconfig - Build for jornada720
kafa_defconfig - Build for kafa
kb9202_defconfig - Build for kb9202
kirkwood_defconfig - Build for kirkwood
ks8695_defconfig - Build for ks8695
lart_defconfig - Build for lart
loki_defconfig - Build for loki
lpd270_defconfig - Build for lpd270
lpd7a400_defconfig - Build for lpd7a400
lpd7a404_defconfig - Build for lpd7a404
lubbock_defconfig - Build for lubbock
lusl7200_defconfig - Build for lusl7200
magician_defconfig - Build for magician
mainstone_defconfig - Build for mainstone
mini2440_defconfig - Build for mini2440
msm_defconfig - Build for msm
mv78xx0_defconfig - Build for mv78xx0
mx1ads_defconfig - Build for mx1ads
mx1_defconfig - Build for mx1
mx21_defconfig - Build for mx21
mx27_defconfig - Build for mx27
mx31pdk_defconfig - Build for mx31pdk
mx3_defconfig - Build for mx3
n770_defconfig - Build for n770
n8x0_defconfig - Build for n8x0
neocore926_defconfig - Build for neocore926
neponset_defconfig - Build for neponset
netwinder_defconfig - Build for netwinder
netx_defconfig - Build for netx
nhk8815_defconfig - Build for nhk8815
ns9xxx_defconfig - Build for ns9xxx
nuc910_defconfig - Build for nuc910
nuc950_defconfig - Build for nuc950
nuc960_defconfig - Build for nuc960
omap_2430sdp_defconfig - Build for omap_2430sdp
omap_3430sdp_defconfig - Build for omap_3430sdp
omap_3630sdp_defconfig - Build for omap_3630sdp
omap3_beagle_defconfig - Build for omap3_beagle
omap3_defconfig - Build for omap3
omap3_evm_defconfig - Build for omap3_evm
omap3_pandora_defconfig - Build for omap3_pandora
omap3_touchbook_defconfig - Build for omap3_touchbook
omap_4430sdp_defconfig - Build for omap_4430sdp
omap_apollon_2420_defconfig - Build for omap_apollon_2420
omap_generic_1510_defconfig - Build for omap_generic_1510
omap_generic_1610_defconfig - Build for omap_generic_1610
omap_generic_1710_defconfig - Build for omap_generic_1710
omap_generic_2420_defconfig - Build for omap_generic_2420
omap_h2_1610_defconfig - Build for omap_h2_1610
omap_h4_2420_defconfig - Build for omap_h4_2420
omap_innovator_1510_defconfig - Build for omap_innovator_1510
omap_innovator_1610_defconfig - Build for omap_innovator_1610
omap_ldp_defconfig - Build for omap_ldp
omap_osk_5912_defconfig - Build for omap_osk_5912
omap_perseus2_730_defconfig - Build for omap_perseus2_730
omap_zoom2_defconfig - Build for omap_zoom2
omap_zoom3_defconfig - Build for omap_zoom3
onearm_defconfig - Build for onearm
orion5x_defconfig - Build for orion5x
overo_defconfig - Build for overo
palmte_defconfig - Build for palmte
palmtt_defconfig - Build for palmtt
palmz71_defconfig - Build for palmz71
palmz72_defconfig - Build for palmz72
pcm027_defconfig - Build for pcm027
picotux200_defconfig - Build for picotux200
pleb_defconfig - Build for pleb
pnx4008_defconfig - Build for pnx4008
pxa168_defconfig - Build for pxa168
pxa255-idp_defconfig - Build for pxa255-idp
pxa3xx_defconfig - Build for pxa3xx
pxa910_defconfig - Build for pxa910
qil-a9260_defconfig - Build for qil-a9260
realview_defconfig - Build for realview
realview-smp_defconfig - Build for realview-smp
rpc_defconfig - Build for rpc
rx51_defconfig - Build for rx51
s3c2410_defconfig - Build for s3c2410
s3c6400_defconfig - Build for s3c6400
s5pc100_defconfig - Build for s5pc100
sam9_l9260_defconfig - Build for sam9_l9260
shannon_defconfig - Build for shannon
shark_defconfig - Build for shark
simpad_defconfig - Build for simpad
spitz_defconfig - Build for spitz
stmp378x_defconfig - Build for stmp378x
stmp37xx_defconfig - Build for stmp37xx
sx1_defconfig - Build for sx1
tct_hammer_defconfig - Build for tct_hammer
trizeps4_defconfig - Build for trizeps4
u300_defconfig - Build for u300
u8500_defconfig - Build for u8500
usb-a9260_defconfig - Build for usb-a9260
usb-a9263_defconfig - Build for usb-a9263
versatile_defconfig - Build for versatile
viper_defconfig - Build for viper
xcep_defconfig - Build for xcep
yl9200_defconfig - Build for yl9200
zeus_defconfig - Build for zeus

make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build
make V=2 [targets] 2 => give reason for rebuild of target
make O=dir [targets] Locate all output files in "dir", including .config
make C=1 [targets] Check all c source with $CHECK (sparse by default)
make C=2 [targets] Force check of all c source with $CHECK

Execute "make" or "make all" to build all targets marked with [*]
For further info see the ./README file
|-
| 4-8
| 4-30
| Snippet from .../arch/arm/Konfig
|<pre>
205 source "init/Kconfig"
206
207 source "kernel/Kconfig.freezer"
208
209 menu "System Type"
210
211 config MMU
212 bool "MMU-based Paged Memory Management Support"
213 default y
214 help
215 Select if you want MMU-based virtualised addressing space
216 support by paged memory management. If unsure, say 'Y'.
217
218 choice
219 prompt "ARM system type"
220 default ARCH_VERSATILE
783 source "arch/arm/mach-ixp4xx/Kconfig"
</pre>
|-
| 4-9
| 4-30
| Snippet from .../arch/arm/mach-omap1/Konfig
|<pre>
1 comment "OMAP Core Type"
2 depends on ARCH_OMAP1
3
4 config ARCH_OMAP730
5 depends on ARCH_OMAP1
6 bool "OMAP730 Based System"
7 select CPU_ARM926T
8 select ARCH_OMAP_OTG
</pre>
|-
| 4-10
| 4-32
| Customized .config file snippet
|<pre>
257 CONFIG_MACH_OMAP3_BEAGLE=y
</pre>
|-
| 4-11
| 4-33
| .../arch/arm/mach-omap1 Kernel subdirectory
|<pre>
#
# Makefile for the linux kernel.
#

# Common support
obj-y := io.o id.o sram.o irq.o mux.o flash.o serial.o devices.o
obj-y += clock.o clock_data.o opp_data.o

obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o

obj-$(CONFIG_OMAP_MPU_TIMER) += time.o
obj-$(CONFIG_OMAP_32K_TIMER) += timer32k.o

# Power Management
obj-$(CONFIG_PM) += pm.o sleep.o

# DSP
obj-$(CONFIG_OMAP_MBOX_FWK) += mailbox_mach.o
mailbox_mach-objs := mailbox.o

i2c-omap-$(CONFIG_I2C_OMAP) := i2c.o
obj-y += $(i2c-omap-m) $(i2c-omap-y)

led-y := leds.o

# Specific board support
obj-$(CONFIG_MACH_OMAP_H2) += board-h2.o board-h2-mmc.o
obj-$(CONFIG_MACH_OMAP_INNOVATOR) += board-innovator.o
obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o
obj-$(CONFIG_MACH_OMAP_PERSEUS2) += board-perseus2.o
obj-$(CONFIG_MACH_OMAP_FSAMPLE) += board-fsample.o
obj-$(CONFIG_MACH_OMAP_OSK) += board-osk.o
obj-$(CONFIG_MACH_OMAP_H3) += board-h3.o board-h3-mmc.o
obj-$(CONFIG_MACH_VOICEBLUE) += board-voiceblue.o
obj-$(CONFIG_MACH_OMAP_PALMTE) += board-palmte.o
obj-$(CONFIG_MACH_OMAP_PALMZ71) += board-palmz71.o
obj-$(CONFIG_MACH_OMAP_PALMTT) += board-palmtt.o
obj-$(CONFIG_MACH_NOKIA770) += board-nokia770.o
obj-$(CONFIG_MACH_AMS_DELTA) += board-ams-delta.o
obj-$(CONFIG_MACH_SX1) += board-sx1.o board-sx1-mmc.o
obj-$(CONFIG_MACH_HERALD) += board-htcherald.o

ifeq ($(CONFIG_ARCH_OMAP15XX),y)
# Innovator-1510 FPGA
obj-$(CONFIG_MACH_OMAP_INNOVATOR) += fpga.o
endif

# LEDs support
led-$(CONFIG_MACH_OMAP_H2) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_H3) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_INNOVATOR) += leds-innovator.o
led-$(CONFIG_MACH_OMAP_PERSEUS2) += leds-h2p2-debug.o
led-$(CONFIG_MACH_OMAP_OSK) += leds-osk.o
obj-$(CONFIG_LEDS) += $(led-y)

ifneq ($(CONFIG_FB_OMAP),)
obj-y += lcd_dma.o
endif
</pre>
|-
| 5-5
| 5-5
| Assembly file Piggy.S
|<pre>
1 .section .piggydata,#alloc
2 .globl input_data
3 input_data:
4 .incbin "arch/arm/boot/compressed/piggy.gzip"
5 .globl input_data_end
6 input_data_end:
</pre>
|-
| 5-4
| 5-18
| Console setup Code Snippet
|<pre>
837 /*
838 * Set up a list of consoles. Called from init/main.c
839 */
840 static int __init console_setup(char *str)
841 {
842 char buf[sizeof(console_cmdline[0].name) + 4]; /* 4 for index */
843 char *s, *options, *brl_options = NULL;
844 int idx;
845
846 #ifdef CONFIG_A11Y_BRAILLE_CONSOLE
847 if (!memcmp(str, "brl,", 4)) {
848 brl_options = "";
849 str += 4;
850 } else if (!memcmp(str, "brl=", 4)) {
851 brl_options = str + 4;
852 str = strchr(brl_options, ',');
853 if (!str) {
854 printk(KERN_ERR "need port name after brl=\n");
855 return 1;
856 }
857 *(str++) = 0;
858 }
859 #endif
</pre>
|-
| 5-8
| 5-19
| Family of __setup macro Definitions from init.h
|<pre>
224 /*
225 * Only for really core code. See moduleparam.h for the normal way.
226 *
227 * Force the alignment so the compiler doesn't space elements of the
228 * obs_kernel_param "array" too far apart in .init.setup.
229 */
230 #define __setup_param(str, unique_id, fn, early) \
231 static const char __setup_str_##unique_id[] __initconst \
232 __aligned(1) = str; \
233 static struct obs_kernel_param __setup_##unique_id \
234 __used __section(.init.setup) \
235 __attribute__((aligned((sizeof(long))))) \
236 = { __setup_str_##unique_id, fn, early }
237
238 #define __setup(str, fn) \
239 __setup_param(str, fn, fn, 0)
240
241 /* NOTE: fn is as per module_param, not __setup! Emits warning if fn
242 * returns non-zero. */
243 #define early_param(str, fn) \
244 __setup_param(str, fn, fn, 1)
</pre>
|-
| 5-6
| 5-20
| Kernel Command Line Processing
|<pre>
204 extern struct obs_kernel_param __setup_start[], __setup_end[];
205
206 static int __init obsolete_checksetup(char *line)
207 {
208 struct obs_kernel_param *p;
209 int had_early_param = 0;
210
211 p = __setup_start;
212 do {
213 int n = strlen(p->str);
214 if (!strncmp(line, p->str, n)) {
215 if (p->early) {
216 /* Already done in parse_early_param?
217 * (Needs exact match on param part).
218 * Keep iterating, as we can have early
219 * params and __setups of same names 8( */
220 if (line[n] == '\0' || line[n] == '=')
221 had_early_param = 1;
222 } else if (!p->setup_func) {
223 printk(KERN_WARNING "Parameter %s is obsolete,"
224 " ignored\n", p->str);
225 return 1;
226 } else if (p->setup_func(line + n))
227 return 1;
228 }
229 p++;
230 } while (p < __setup_end);
231
232 return had_early_param;
233 }
</pre>

ECE497 Editing a Wiki

2010-03-12T20:36:39Z

Banistpw:

Here is a wiki you can practice editing. Before you can edit it you will have to create an login. Pick something that will make it easy for me to identify you as part of my class. Then just add your name and date on the end of the table.

You can get help here: [[Help:Contents]].

{|
! Name
! Date
|-
| [[user:Yoder | Mark A. Yoder]]
| 2-Mar-2010
|-
| Elliot Simon
| 8-Mar-2010
|-
| Mitch Garvin
| 8-Mar-2010
|-
| [[user:collinjc | J. Cody Collins]]
| 8-Mar-2010
|-
| Steven Stark
| 8-Mar-2010
|-
| Brian Embry
| 8-Mar-2010
|-
| Qiang Jiang
| 8-Mar-2010
|-
| Jessica Lipscomb
| 8-Mar-2010
|-
| Chris Routh
| 8-Mar-2010
|-
| Paul Morrison
| 8-Mar-2010
|-
| David Baty
| 8-Mar-2010
|-
| Adam Jesionowski
| 9-Mar-2010
|-
| Greg Jackson
| 9-Mar-2010
|-
| Mark Jacobson
| 9-Mar-2010
|-
| Tom Most
| 10-Mar-2010
|-
| Yannick Polius
| 10-Mar-2010
|-
| Matt Luke
| 11-Mar-2010
|-
| [[user:banistpw | Paul Banister]]
| 12-Mar-2010
|-
| Jian Li
| 12-Mar-2010
|}

[[Category:ECE597]]

ECE497 Editing a Wiki

2010-03-12T20:36:35Z

Banistpw:

Here is a wiki you can practice editing. Before you can edit it you will have to create an login. Pick something that will make it easy for me to identify you as part of my class. Then just add your name and date on the end of the table.

You can get help here: [[Help:Contents]].

{|
! Name
! Date
|-
| [[user:Yoder | Mark A. Yoder]]
| 2-Mar-2010
|-
| Elliot Simon
| 8-Mar-2010
|-
| Mitch Garvin
| 8-Mar-2010
|-
| [[user:collinjc | J. Cody Collins]]
| 8-Mar-2010
|-
| Steven Stark
| 8-Mar-2010
|-
| Brian Embry
| 8-Mar-2010
|-
| Qiang Jiang
| 8-Mar-2010
|-
| Jessica Lipscomb
| 8-Mar-2010
|-
| Chris Routh
| 8-Mar-2010
|-
| Paul Morrison
| 8-Mar-2010
|-
| David Baty
| 8-Mar-2010
|-
| Adam Jesionowski
| 9-Mar-2010
|-
| Greg Jackson
| 9-Mar-2010
|-
| Mark Jacobson
| 9-Mar-2010
|-
| Tom Most
| 10-Mar-2010
|-
| Yannick Polius
| 10-Mar-2010
|-
| Matt Luke
| 11-Mar-2010
|-
| [[user:cbanistpw | Paul Banister]]
| 12-Mar-2010
|-
| Jian Li
| 12-Mar-2010
|}

[[Category:ECE597]]

ECE497 Editing a Wiki

2010-03-12T20:34:48Z

Banistpw:

Here is a wiki you can practice editing. Before you can edit it you will have to create an login. Pick something that will make it easy for me to identify you as part of my class. Then just add your name and date on the end of the table.

You can get help here: [[Help:Contents]].

{|
! Name
! Date
|-
| Mark A. Yoder
| 2-Mar-2010
|-
| Elliot Simon
| 8-Mar-2010
|-
| Mitch Garvin
| 8-Mar-2010
|-
| [[user:collinjc | J. Cody Collins]]
| 8-Mar-2010
|-
| Steven Stark
| 8-Mar-2010
|-
| Brian Embry
| 8-Mar-2010
|-
| Qiang Jiang
| 8-Mar-2010
|-
| Jessica Lipscomb
| 8-Mar-2010
|-
| Chris Routh
| 8-Mar-2010
|-
| Paul Morrison
| 8-Mar-2010
|-
| David Baty
| 8-Mar-2010
|-
| Adam Jesionowski
| 9-Mar-2010
|-
| Greg Jackson
| 9-Mar-2010
|-
| Mark Jacobson
| 9-Mar-2010
|-
| Tom Most
| 10-Mar-2010
|-
| Yannick Polius
| 10-Mar-2010
|-
| Matt Luke
| 11-Mar-2010
|-
| [[user:banistpw | Paul Banister]]
| 12-Mar-2010
|}

[[Category:ECE597]]

ECE497 Editing a Wiki

2010-03-12T20:33:35Z

Banistpw:

Here is a wiki you can practice editing. Before you can edit it you will have to create an login. Pick something that will make it easy for me to identify you as part of my class. Then just add your name and date on the end of the table.

You can get help here: [[Help:Contents]].

{|
! Name
! Date
|-
| Mark A. Yoder
| 2-Mar-2010
|-
| Elliot Simon
| 8-Mar-2010
|-
| Mitch Garvin
| 8-Mar-2010
|-
| [[user:collinjc | J. Cody Collins]]
| 8-Mar-2010
|-
| Steven Stark
| 8-Mar-2010
|-
| Brian Embry
| 8-Mar-2010
|-
| Qiang Jiang
| 8-Mar-2010
|-
| Jessica Lipscomb
| 8-Mar-2010
|-
| Chris Routh
| 8-Mar-2010
|-
| Paul Morrison
| 8-Mar-2010
|-
| David Baty
| 8-Mar-2010
|-
| Adam Jesionowski
| 9-Mar-2010
|-
| Greg Jackson
| 9-Mar-2010
|-
| Mark Jacobson
| 9-Mar-2010
|-
| Tom Most
| 10-Mar-2010
|-
| Yannick Polius
| 10-Mar-2010
|-
| Matt Luke
| 11-Mar-2010
|-
| Paul Banister
| 12-Mar-2010
|}

[[Category:ECE597]]

User:Banistpw

2010-03-11T23:10:03Z

Banistpw:

User:Banistpw

2010-03-09T14:28:44Z

Banistpw: Created page with 'Paul Banister Senior CS/SE Very familiar but no expert with both Linux and C/C++. I hope to contribute good coding practices and design to a team more familiar with lower level…'

Paul Banister

Senior CS/SE

Very familiar but no expert with both Linux and C/C++. I hope to contribute good coding practices and design to a team more familiar with lower level background.