[HARDY] 40-permissions.rules not used by udev

Bug #210421 reported by enguerran on 2008-04-01
Affects Status Importance Assigned to Milestone
udev (Ubuntu)
Daniel Hahler

Bug Description

On a up to date hardy, I use a /etc/udev/rules.d/45-tuxdroid.rules to launch two deamons when some usb device is plugged.

My /etc/udev/rules.d/40-permissions.rules contains those lines :
# USB devices (usbfs replacement)
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0664"
SUBSYSTEM=="usb_device", GROUP="usb", MODE="0664"

But when the usb device is plugged, it gets the wrong permissions and my two previous deamons can't launch.

enguerran (enguerrangillet) wrote :
enguerran (enguerrangillet) wrote :
description: updated
Daniel Hahler (blueyed) wrote :

Have you checked using "udevmonitor" if the events are like you expect them to be and to debug this in general?

Changed in udev:
assignee: nobody → blueyed
importance: Undecided → Medium
status: New → Incomplete

Your rules are for an older kernel than the one in Hardy.

You will need to make a similar change to that as has been made in 40-permissions.rules, ie. instead of matching SUBSYSTEM=="usb_device" you need to match SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device"


SUBSYSTEM=="usb", ENV{devtype}=="usb_device", SYSFS{idVendor}=="03eb", SYSFS{idProduct}=="2ffd", MODE:="0666"

Changed in udev:
status: Incomplete → Invalid
enguerran (enguerrangillet) wrote :
Download full text (5.3 KiB)


thanks for the tip.
Anyway, I made the neccessary change to my 45-tuxdroid.rules, but it doesn't help.
My deamons aren't launch :/

Here is to ouput of udevmonitor when I plug my USB device :
udevmonitor will print the received events for:
UDEV the event which udev sends out after rule processing
UEVENT the kernel uevent

UEVENT[1207154591.155446] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2 (usb)
UEVENT[1207154591.188452] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/usb_endpoint/usbdev2.6_ep00 (usb_endpoint)
UDEV [1207154591.188907] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2 (usb)
UDEV [1207154591.209818] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/usb_endpoint/usbdev2.6_ep00 (usb_endpoint)
UEVENT[1207154591.673400] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0 (usb)
UEVENT[1207154591.707698] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1 (sound)
UEVENT[1207154591.707759] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/pcmC1D0p (sound)
UEVENT[1207154591.707778] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/pcmC1D0c (sound)
UEVENT[1207154591.707796] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/dsp1 (sound)
UEVENT[1207154591.707814] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/audio1 (sound)
UEVENT[1207154591.707831] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/controlC1 (sound)
UEVENT[1207154591.707849] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/mixer1 (sound)
UEVENT[1207154591.727585] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.1 (usb)
UEVENT[1207154591.727624] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.2 (usb)
UEVENT[1207154591.727633] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.3 (usb)
UEVENT[1207154591.727640] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.3/usb_endpoint/usbdev2.6_ep84 (usb_endpoint)
UEVENT[1207154591.727649] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.3/usb_endpoint/usbdev2.6_ep05 (usb_endpoint)
UEVENT[1207154591.727657] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.4 (usb)
UEVENT[1207154591.739411] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/pcmC1D1p (sound)
UEVENT[1207154591.739444] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/adsp1 (sound)
UEVENT[1207154591.739453] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.5 (usb)
UDEV [1207154591.924170] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0 (usb)
UDEV [1207154591.937488] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1 (sound)
UDEV [1207154591.971527] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.1 (usb)
UDEV [1207154592.004204] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/pcmC1D0p (sound)
UDEV [1207154592.016631] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/pcmC1D0c (sound)
UDEV [1207154592.038583] add /devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0/sound/card1/dsp1 (sound)
UDEV [1207154592.063223] add ...


Changed in udev:
status: Invalid → Incomplete
enguerran (enguerrangillet) wrote :

Here is the ouptut of a "udevmonitor --environment", when I plug my usb device.

Err, sorry, replace SYSFS in above with ATTRS

enguerran (enguerrangillet) wrote :

Made those changes too.
My new 45-tuxdroid.rules is joined.

I still can't get my daemons run.

Thanks for your precious help (especially Scott) !

The rules must be copied precisely.

It's ENV{DEVTYPE} not ENV{devtype}

enguerran (enguerrangillet) wrote :

You are right. This finally works.
I invalid the bug.

Thanks a lot for taking the time to explain.

enguerran (enguerrangillet) wrote :

It's was not udev bug.
As Scott James Remnant pointed out, the 45-tuxdroid.rules I used were for an older kernel. So I just had to update it.

Changed in udev:
status: Incomplete → Invalid
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