/lib/udev/keymaps/fujitsu-amilo_si_1520 is in udev 175-7.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | 0xE1 wlan
0xF3 wlan
0xEE brightnessdown
0xE0 brightnessup
0xE2 bluetooth
0xF7 video
|