diff options
| -rw-r--r-- | Documentation/hwmon/sysfs-interface | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index d131a56e52f8..b3a9e1b9dbda 100644 --- a/Documentation/hwmon/sysfs-interface +++ b/Documentation/hwmon/sysfs-interface @@ -172,11 +172,10 @@ pwm[1-*] Pulse width modulation fan control. 255 is max or 100%. pwm[1-*]_enable - Switch PWM on and off. - Not always present even if pwmN is. - 0: turn off - 1: turn on in manual mode - 2+: turn on in automatic mode + Fan speed control method: + 0: no fan speed control (i.e. fan at full speed) + 1: manual fan speed control enabled (using pwm[1-*]) + 2+: automatic fan speed control enabled Check individual chip documentation files for automatic mode details. RW |