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Udev

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Reference:www.reactivated.net

Automount media device ​

Add the file /etc/udev/rules.d/90-media-automount.rules with the following content:

ini
ACTION=="add", SUBSYSTEMS=="usb", SUBSYSTEM=="block", ENV{ID_FS_USAGE}=="filesystem", RUN{program}+="/usr/bin/systemd-mount --no-block --automount=yes --collect --owner=mateus $devnode"
ACTION=="add", SUBSYSTEMS=="usb", SUBSYSTEM=="block", ENV{ID_FS_USAGE}=="filesystem", RUN{program}+="/usr/bin/systemd-mount --no-block --automount=yes --collect $devnode"

To unmount the device, use:

shell
sudo systemd-umount /run/media/system/<devname>

Running commands ​

For example, for changing permissions of backlight files so you can change your brightness without sudo, create /etc/udev/rules.d/backlight.rules with the following content:

ini
ACTION=="add", SUBSYSTEM=="backlight", KERNEL=="intel_backlight", RUN+="/bin/chgrp video /sys/class/backlight/%k/brightness"
ACTION=="add", SUBSYSTEM=="backlight", KERNEL=="intel_backlight", RUN+="/bin/chmod g+w /sys/class/backlight/%k/brightness"

Add permission to access device ​

Example of adding access, required for aft-mtp-mount, to OPPO Reno5 A (some tips):

Find idVendor idProduct using the tool lsusb:

shell
lsusb

Output:

txt
Bus 001 Device 032: ID idVendor:idProduct OPPO Electronics Corp. OPPO Reno5 A
Bus 001 Device 032: ID 22d9:2764 OPPO Electronics Corp. OPPO Reno5 A

Add the rule to /etc/udev/rules.d/71-oppo-electronics.rules:

ini
SUBSYSTEMS=="usb", ATTRS{idVendor}=="22d9", ATTRS{idProduct}=="2764", TAG+="uaccess"