fix (postinst): fix udevadm call
The problem seen before occurs when udevadm is applied without
restriction.
See also https://bugzilla.kernel.org/show_bug.cgi?id=207695
Since udevadm is useful only for imon device (because that's the only
device with a udev rule), let's restrict udevadm.
imon is seen as a usb device:
$ udevadm info /dev/lcd0
P: /devices/pci0000:00/0000:00:13.1/usb8/8-2/8-2:1.0/usbmisc/lcd0
N: lcd0
L: 0
S: lcd-imon
E: DEVPATH=/devices/pci0000:00/0000:00:13.1/usb8/8-2/8-2:1.0/usbmisc/lcd0
E: DEVNAME=/dev/lcd0
E: MAJOR=180
E: MINOR=0
E: SUBSYSTEM=usbmisc
E: USEC_INITIALIZED=10234683
E: DEVLINKS=/dev/lcd-imon
so let's restrict udevadm to usbmisc susbsystem
Dominique Dumont
3 years ago
| 0 | 0 | #!/bin/sh -e |
| 1 | 1 | |
| 2 | 2 | # activate udev rule before cme tries to upgrade the configuration |
| 3 | udevadm trigger --action=change || echo "Failed to run udevadm. This is a known bug which breaks imon setup. See https://bugzilla.kernel.org/show_bug.cgi?id=207695 for more information" >> /dev/stderr | |
| 3 | # restrict to usb subsystem used by imon. This could be changed if | |
| 4 | # udev rules are created for other devices. | |
| 5 | udevadm trigger --action=change --subsystem-match=usbmisc | |
| 4 | 6 | |
| 5 | 7 | #DEBHELPER# |