Posted on March 10, 2003 at 11:37 Has anyone had success using USB on the Atlas under Linux ? We are using the 2.4.18 kernel and trying the different kernel drivers. It looks lke the USB OHCI driver should work. We should be able to build the appropriate drivers into the kernel to handle this. The kernel in this case is put on a compact flash card along with a minimal linux pacakge. Our target boots and runs from the card.
We are attempting to use the Compact Flash SanDisk reader on our Atlas based controller.
On our Redhat 7.2 (Dell) development system with the Sandisk Reader attached I can enter the following:
# load usb support modules
insmod usbcore
insmod uhci
modprobe usb-storage
# load scsi support modules
insmod sg
insmod ide-scsi
insmod cdrom
insmod sr_mod
insmod sd_mod
Loading the above adds usb and scsi support. After the above is loaded you can then mount the compact flash card with a command like this:
mount -t ext2 /dev/sda1 /mntpoint
Putting the appropriate drivers into the kernel (on our custom compact flash card) and attempting the mount command fails on ''mount: /dev/sda1 is not a valid block device''.
Using a hard drive on ST's Atlas Eval board with a full redhat 7.2 install and doing the above appears to almost work. Doing the mount gives an error indicating that it could not see the media.
I'm mostly interested in confirmation that this should work and that some other issue that I may be missing isn't causing problems.
[ This message was edited by: Floyd on 10-03-2003 22:09 ]
