DaVinci USBHost 1.0
USB Host Guide 1.0
cd into your kernel lsp directory.
Run make menuconfig.
Select drivers -> SCSI.
Enable scsi and enable search multiple LUI option.
Select drivers -> USB.
Enable USB Host Mode.
Enable USB Mass Storage Device option.
Get the kernel onto your board in the usual way.
insert your USB card reader
mount your card using:
mount /dev/sdXX /usbdrive -o sync
where XX = a1, a2, a3, b1 etc..