Letux 400 Hardware

SpecialDevices

Table of Content

A list of special device files (2.4 / 2.6 kernel only!)

The 2.4/2.6 kernels expose some old-style /proc interfaces

  • /proc/jz/numlock_led - write 0 or 1 to the LED
  • /proc/jz/capslock_led - write 0 or 1 to the LED
  • /proc/jz/eth0_led - write 0 or 1 to the LED
  • /proc/jz/battery - reads battery flag
  • /proc/jz/battery-level - reads battery status
  • /proc/jz/wifi-power - write 0 or 1 to power up WiFi
  • /proc/jz/backlight - write value to backlight PWM (0..300)

  • /proc/powerdown

  • Touch screen position

  • Touch screen keys
  • Keyboard events

This all will be replaced by modern API in the Letux-kernels >4.13

  • LEDs: /sys/class/leds
  • battery: /sys/class/power_supply ?
  • wifi-power: ?
  • backlight: /sys/class/backlight
  • powerdown: ?
  • Touch/Keyboard: /dev/input/event*

Created: 4 years 10 months ago
by Nikolaus Schaller

Updated: 1 year 6 months ago
by Nikolaus Schaller

Old Revisions