I have just upgraded from kernel 2.6.21.6 to 2.6.22.1 and xsane no
longer finds my usb scanner under 2.6.22.1 from an ordinary account
which is a member of the "scanner group".
This is under debian etch, and the relevant entry in
etc/udev/libsane.rules is
SYSFS{idVendor}=="04b8", SYSFS{idProduct}=="010a", MODE="664",
GROUP="scanner"
SANE_DEBUG_SANEI_USB=128 scanimage -L
under 2.6.21.6 (good) gives:
------------------------------------------------------------------------
[sanei_debug] Setting debug level of sanei_usb to 128.
[sanei_usb] sanei_usb_init: Looking for kernel scanner devices
[sanei_usb] sanei_usb_init: can't stat /dev/usb/: No such file or directory
[sanei_usb] sanei_usb_init: Looking for libusb devices
usb_set_debug: Setting debugging level to 255 (on)
[sanei_usb] sanei_usb_init: found libusb device (0x04b8/0x010a)
interface 0 at libusb:001:004 <==== This is the scanner
[sanei_usb] sanei_usb_init: device 0x05e3/0x0606, interface 0 doesn't
look like
a scanner (9/9)
[sanei_usb] sanei_usb_init: device 0x05e3/0x0606: no suitable interfaces
[sanei_usb] sanei_usb_init: device 0x05e3/0x0606, interface 0 doesn't
look like
a scanner (9/9)
[sanei_usb] sanei_usb_init: device 0x05e3/0x0606: no suitable interfaces
[sanei_usb] sanei_usb_init: device 0x0000/0x0000 looks like a root hub
[sanei_usb] sanei_usb_init: found 1 devices
[sanei_usb] sanei_usb_find_devices: vendor=0x04b8, product=0x010a
[sanei_usb] sanei_usb_open: trying to open device `libusb:001:004'
[sanei_usb] sanei_usb_open: configuration nr: 0
[sanei_usb] sanei_usb_open: interface nr: 0
--snip --
----------------------------------------------------------------------------------
but under 2.6.22,1
SANE_DEBUG_SANEI_USB=128 scanimage -L
-------------------------------------------------------------------------------
[sanei_debug] Setting debug level of sanei_usb to 128.
[sanei_usb] sanei_usb_init: Looking for kernel scanner devices
[sanei_usb] sanei_usb_init: can't stat /dev/usb/: No such file or directory
[sanei_usb] sanei_usb_init: Looking for libusb devices
usb_set_debug: Setting debugging level to 255 (on)
[sanei_usb] sanei_usb_init: found libusb device (0x04b8/0x010a)
interface 0 at libusb:001:005 <==== The scanner
[sanei_usb] sanei_usb_init: device 0x05e3/0x0606, interface 0 doesn't
look like
a scanner (9/9)
[sanei_usb] sanei_usb_init: device 0x05e3/0x0606: no suitable interfaces
[sanei_usb] sanei_usb_init: device 0x05e3/0x0606, interface 0 doesn't
look like
a scanner (9/9)
[sanei_usb] sanei_usb_init: device 0x05e3/0x0606: no suitable interfaces
[sanei_usb] sanei_usb_init: device 0x0000/0x0000 looks like a root hub
[sanei_usb] sanei_usb_init: found 1 devices
[sanei_usb] sanei_usb_find_devices: vendor=0x04b8, product=0x010a
[sanei_usb] sanei_usb_open: trying to open device `libusb:001:005'
USB error: could not set config 1: Operation not permitted
[sanei_usb] sanei_usb_open: libusb complained: could not set config 1:
Operation not permitted
[sanei_usb] Make sure you run as root or set appropriate permissions
----------------------------------------------------------------------------
I wonder if somehow I have misconfigured 2.6.22.1 but nothing was
obvious after a couple of checks and recompiles. I see that there have
been a great many patches to usb in 2.6.22. Is this a known problem, or
am I missing something obvious/elementary?
ael
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