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| author | Jean Delvare <khali@linux-fr.org> | 2007-06-27 21:26:08 +0200 |
|---|---|---|
| committer | Mark M. Hoffman <mhoffman@lightlink.com> | 2007-07-19 20:22:16 +0200 |
| commit | 875f25d5f553f7cf3e6a59c50b32e5fc06442945 (patch) | |
| tree | a64c1ae5391df7c926d56a2c963eb155fbd893d4 /Documentation/hwmon/sysfs-interface | |
| parent | hwmon/smsc47b397: Don't report missing fans as spinning at 82 RPM (diff) | |
| download | linux-875f25d5f553f7cf3e6a59c50b32e5fc06442945.tar.xz linux-875f25d5f553f7cf3e6a59c50b32e5fc06442945.zip | |
hwmon: Improve the pwmN_enable documentation
The documentation of the pwmN_enable interface file is not very clear,
and has been confusing several driver authors already. Make it clearer.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Diffstat (limited to 'Documentation/hwmon/sysfs-interface')
| -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 |