Asus TUF keyboard backlight

asus_kbd_backlight.txt

# Brightness

0 - Off
1 - Low
2 - Medium
3 - High

echo 1 > /sys/class/leds/asus::kbd_backlight/brightness

# State, when backlight is enabled

cat /sys/class/leds/asus::kbd_backlight/kbd_rgb_state_index 
'cmd boot awake sleep keyboard'

cmd and keyboard - any digits, nothing changes for me

echo '1 1 1 0 1' > /sys/class/leds/asus::kbd_backlight/kbd_rgb_state

# Mode

cat /sys/class/leds/asus::kbd_backlight/kbd_rgb_mode_index 
'cmd mode red green blue speed'

cmd - any digit, nothing changes for me

mode:
0 - Static
1 - Breathing
2 - Color Cycle
3 - Strobing

May vary on your laptop. Mine doesn't have a Strobing mode.

red,green,blue - 0-255

kcolorchooser --print | sed 's/#//' | awk '{printf "%d %d %d\n", strtonum("0x" substr($1,1,2)), strtonum("0x" substr($1,3,2)), strtonum("0x" substr($1,5,2))}'

speed:
0 - Slow
1 - Medium
2 - Fast

echo '1 2 255 255 255 0' > /sys/class/leds/asus::kbd_backlight/kbd_rgb_mode

You not able to read a current values, only to set it.

https://github.com/llybin/AsusTUFLinuxKeyboard