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-rw-r--r--Documentation/hwmon/sysfs-interface15
1 files changed, 10 insertions, 5 deletions
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index efef3b962cd3..d73d2e8c7534 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -166,16 +166,21 @@ pwm[1-*] Pulse width modulation fan control.
pwm[1-*]_enable
Switch PWM on and off.
- Not always present even if fan*_pwm is.
+ Not always present even if pwmN is.
0: turn off
1: turn on in manual mode
2+: turn on in automatic mode
- Check individual chip documentation files for automatic mode details.
+ Check individual chip documentation files for automatic mode
+ details.
RW
-pwm[1-*]_mode
- 0: DC mode
- 1: PWM mode
+pwm[1-*]_mode 0: DC mode (direct current)
+ 1: PWM mode (pulse-width modulation)
+ RW
+
+pwm[1-*]_freq Base PWM frequency in Hz.
+ Only possibly available when pwmN_mode is PWM, but not always
+ present even then.
RW
pwm[1-*]_auto_channels_temp