[systemd-devel] UDEV rule not matching...why?

[Daniel Spannbauer]

Hello,


thanks for the response.

My rule is in "55-my-rules.rules"

I also tried it with "ATTRS{bInterfaceNumber}" instead of the 
"ENV{ID_USB_INTERFACE_NUM} ", but also no success.


Regards


Daniel

Am 09.10.2024 um 15:59 schrieb Mantas Mikulėnas:
> Did you place your rules in the correct order? 
> ENV{ID_USB_INTERFACE_NUM} is set by usb_id in 50-udev-default.rules, 
> so it would be available in 60-foo.rules but not in 20-foo.
>
> On Wed, Oct 9, 2024, 16:29 Daniel Spannbauer <ds at marco.de> wrote:
>
>     Hello,
>
>
>     our own device (see attachement for udevadm info --attribute-walk)
>     should have a symlink.
>
>     Therefore I create the following udev rule:
>
>       SUBSYSTEM=="tty", KERNEL=="ttyACM[0-9]*",
>     ENV{ID_USB_INTERFACE_NUM}=="02", ATTRS{idVendor}=="1dfb",
>     ATTRS{idProduct}=="0010", SYMLINK+="2a"
>
>     But a "udevadm test /sys/class/tty/ttyACM1" shows, that there is no
>     match, a symlink is not created. If I remofe the "ENV" pattern,
>     the rule
>     is working.
>
>     Any idea, whats wrong here?
>
>     System is opensuse LEAP 15.5, RPM-VErsion of UDEV is
>     249.16-150400.8.25.7
>
>
>     Best regards
>
>
>     Daniel
>
>
>     -- 
>     Daniel Spannbauer  Systemadministration
>     marco Systemanalyse und Entwicklung GmbH      Tel   +49 8333
>     9233-27 Fax -11
>     Rechbergstr. 4-6, D 87727 Babenhausen         Mobil +49 171 4033220
>     https://www.marco.de                         Email ds at marco.de
>     Geschäftsführer Martin Reuter, Torsten Lukas  HRB 171775
>     Amtsgericht München
>
-- 
Daniel Spannbauer                             Systemadministration
marco Systemanalyse und Entwicklung GmbH      Tel   +49 8333 9233-27 Fax -11
Rechbergstr. 4-6, D 87727 Babenhausen         Mobil +49 171 4033220
https://www.marco.de                           Emailds at marco.de
Geschäftsführer Martin Reuter, Torsten Lukas  HRB 171775 Amtsgericht München
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