Re: UDEV rule not matching...why?

Daniel Spannbauer <ds@xxxxxxxx> · Wed, 9 Oct 2024 16:02:47 +0200



    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@xxxxxxxx>
              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@xxxxxxxx

              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                          Email ds@xxxxxxxx
Geschäftsführer Martin Reuter, Torsten Lukas  HRB 171775 Amtsgericht München