Bug#493751: Doesn't detect any device

[Giuseppe Sacco <giuseppe@eppesuigoccas.homedns.org>]

Goodmorning Aurelien,

On Wed, 6 Aug 2008 21:31:29 +0200 Aurelien Jarno <aurelien@aurel32.net> wrote:
> On Wed, Aug 06, 2008 at 01:53:08AM +0200, Aurelien Jarno wrote:
[...]
> Please find a glibc package which includes the fix on
> http://temp.aurel32.net/mips/
> 
> You should install libc6 in any case, plus the other packages if they 
> are already installed on your system in order to not break the
> dependencies.
> 
> Could you please confirm me that it fixes at least the mknod issues?

I had installed libc6. libc6dev and locales 2.7-10, so I updated only those
packages to 2.7-13+mips as you suggested. The libusb problem is still
unchanged, but I think the problem is really in the kernel. My last test,
after a reboot to clean everything, has gone this way:
1. check lsusb (no devices)
2. plug in the scanner
3. check lsusb (device correctly listed)
4. check /dev/bus/usb/
sgi:/proc/bus/usb# ls -l /dev/bus/usb/*/*
crw-rw-r-- 1 root root    189,   0 2008-08-07 09:23 /dev/bus/usb/001/001
crw-rw-r-- 1 root scanner 189,   6 2008-08-07 09:22 /dev/bus/usb/001/007
crw-rw-r-- 1 root root    189, 128 2008-08-07 09:22 /dev/bus/usb/002/001
crw-rw-r-- 1 root root    189,   0 2008-08-07 09:22 /dev/bus/usb/003/001
5. sane-find-scanner (as root) found the scanner as EPSON
6. scanimage crashed with error
[...]
[sanei_usb] B130: D2 35 12 7C 75 C2 14 D2 15 75 0B 00 12 41 62 85 .5.|u....u...Ab.
[sanei_usb] B140: 01 0E 12 6E 95 C2 02 D2 97 12 44 7F 02 AF 6D C5 ...n......D...m.
[sanei_usb] sanei_usb_write_bulk: write failed: Resource temporarily unavailable scanimage: open of device
snapscan:libusb:001:007 failed: Error during device I/O
7. unplugging the device, its node in /dev/bus/usb has been removed
8. plugging in it again, its node did not appear anymore

Do you have any idea about how to activate a better logging from the kernel USB subsystem?

Anyway, I did try mknod by hand and it seems to be ok

sgi:/tmp# mknod 014 c 189 389 
sgi:/tmp# ls -l 014
crw-r--r-- 1 root root 189, 389 2008-08-07 09:38 014

Thanks,
Giuseppe