Documentation/hwmon/npcm750-pwm-fan.rst

   1 Kernel driver npcm750-pwm-fan
   2 =============================
   3
   4 Supported chips:
   5
   6         NUVOTON NPCM750/730/715/705
   7
   8 Authors:
   9
  10         <tomer.maimon@nuvoton.com>
  11
  12 Description:
  13 ------------
  14 This driver implements support for NUVOTON NPCM7XX PWM and Fan Tacho
  15 controller. The PWM controller supports up to 8 PWM outputs. The Fan tacho
  16 controller supports up to 16 tachometer inputs.
  17
  18 The driver provides the following sensor accesses in sysfs:
  19
  20 =============== ======= =====================================================
  21 fanX_input      ro      provide current fan rotation value in RPM as reported
  22                         by the fan to the device.
  23
  24 pwmX            rw      get or set PWM fan control value. This is an integer
  25                         value between 0(off) and 255(full speed).
  26 =============== ======= =====================================================