On Sunday 09 September 2007, Dan Johansson wrote: > After upgrading to 2.6.22 one of my USB-devices stopped working "out of the > box". I've found a workaround (see below) to get it working. And my > question is how can I make this automatically? > > Here's the workaround: > > From dmesg: > usb 2-1: new full speed USB device using uhci_hcd and address 4 > usb 2-1: no configuration chosen from 1 choice > > > In /sys/bus/usb/devices/ I find the symlink for this device (2-1) > > /sys/bus/usb/devices/2-1# cat bNumConfigurations > 1 > /sys/bus/usb/devices/2-1# cat bConfigurationValue > > by writing a value into bConfigurationValue, I can select an active > configuration: > > /sys/bus/usb/devices/2-1# echo 1 > bConfigurationValue > /sys/bus/usb/devices/2-1# cat bConfigurationValue > 1 > > After this the device works as expected.
I found myself a solution to this problem (I don't know if it's the best way
to do it but it works for me).
I added the following two files to my system:
# cat /etc/udev/rules.d/00-local.rules
SUBSYSTEM=="usb", DRIVERS=="usb",
ATTRS{serial}=="2f11211b-0e00-0106-6800-0050bf7a660c",
RUN+="/usr/local/bin/loox.udev"
# cat /usr/local/bin/loox.udev
#!/bin/bash
if [ ${ACTION} == "add" ]
then
echo "1" > /sys/${DEVPATH}/bConfigurationValue
fi
--
Dan Johansson, <http://www.dmj.nu>
***************************************************
This message is printed on 100% recycled electrons!
***************************************************
signature.asc
Description: This is a digitally signed message part.
