/etc/udev/hwdb.d/90-sbutton.hwdb
evdev:input:b0005v099Ap0500*
KEYBOARD_KEY_c00e9=s
KEYBOARD_KEY_70028=r
then run:
udevadm hwdb --update
udevadm control --reload
udevadm trigger
bluetoothctl
# pairable on
# scan on
# pair C6:97:B1:64:F0:A4
# trust C6:97:B1:64:F0:A4
# connect C6:97:B1:64:F0:A4
- KEYBOARD_KEY_c00e9: big button
- KEYBOARD_KEY_70028: small button
complete list: https://hal.freedesktop.org/quirk/quirk-keymap-list.txt