On 9/25/23 15:15, Lucas Russo via Tech-talk wrote:
Hi Mark,
Three sets of commands that helped me in the past:
When making changes, don't forget to reload the modified files with:
udevadm control --reload
$ udevadm monitor
Will show you events for a device
$ udevadm test --action=add <device path>
For example, I have a yubikey with a special udev rule:
$ cat /etc/udev/rules.d/yubikey.rules
SUBSYSTEMS=="usb", ATTRS{idVendor}=="1050", ATTRS{idProduct}=="0407", GROUP="plugdev", TAG+="uaccess"
I see the following, where group "plugdev" has gid 46.
sudo udevadm test --action=add /dev/bus/usb/001/008
...
Reading rules file: /etc/udev/rules.d/yubikey.rules
...
1-6: /etc/udev/rules.d/yubikey.rules:1 GROUP 46
1-6: Setting permissions /dev/bus/usb/001/008, uid=0, gid=46, mode=0664
- References:
- USB permissions Mark Rivers via Tech-talk
- Re: USB permissions Lucas Russo via Tech-talk
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