On Sun, Feb 04, 2001 at 09:59:54PM +0100, Michael Schmitz wrote: > > > I've applied the patch to usb-storage.c and compiled and inserted it, but I > > > seem to be having trouble with scsi emulation still. When I try 'mount -t > > > vfat /dev/sda /mnt' I get: > > > > usb mass storage does not work under 2.2 kernels AFAIK. i tried it > > for quite awhile and finally gave up and upgraded to 2.4. (on an > > intel box) mass storage works quite well under 2.4. > > Yes it does. 2.2.18 vanilla does just fine for me. linux-pmac-stable from > a while back (pre18) compiled on PPC or Intel also works fine. For > sufficiently relaxed definition of 'fine' on Intel (horrible crashes of > the USB driver after a bus hang) if you absolutely insist on torturing the > USB device by dumping one huge 200MB file to the device, but just fine > most of the time. And just fine on my Lombard all of the time. That's with > a 250MB Zip drive on the bus and nothing else, and building the uhci or > usb-uhci drivers as modules instead of builtin seemed to help a lot with > stablity for some reason. interesting, in my case the device is a digital camera that shows up as a mass storage device. under 2.2 kernels the kernel recognizes the device but never allocates a node to it, under 2.4 it works the same except the device is allocated /dev/sda. i messed with it for a very long time until i found references saying mass storage relied on the 2.4 scsi layer and didn't work under 2.2 so i gave up and upgraded to 2.4 which worked immediately. > I have to insert the usb-storage module manually though. Upon loading that > module, it will intialize a SCSI host probe to find the USB bus as new > host adapter, and probe for devices on that host adapter's bus. Watch for > errors in the log output from the modprobe usb-storage command. maybe thats it, i compiled it into the kernel (which works fine on 2.4) i did get the messages from the kernel saying it detected the device when i plugged it in, it just neglected to allocate a node each and every time. -- Ethan Benson http://www.alaska.net/~erbenson/
Attachment:
pgp70c0LvLmpT.pgp
Description: PGP signature