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| author | Guenter Roeck <linux@roeck-us.net> | 2012-12-04 08:30:54 -0800 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2013-04-07 21:16:39 -0700 |
| commit | 77eb5b3703d995e6c72ef4a1e5411821f81df7e4 (patch) | |
| tree | f91488312051b427872d45c7b7b62b0bee7b2098 /Documentation/hwmon | |
| parent | 84d19d92f78e10f8bdc1b3e1b5ddcaf5895edaf7 (diff) | |
| download | lwn-77eb5b3703d995e6c72ef4a1e5411821f81df7e4.tar.gz lwn-77eb5b3703d995e6c72ef4a1e5411821f81df7e4.zip | |
hwmon: (nct6775) Add support for pwm, pwm_mode, and pwm_enable
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/nct6775 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/hwmon/nct6775 b/Documentation/hwmon/nct6775 index dcd56a375ba5..7c9f1d303913 100644 --- a/Documentation/hwmon/nct6775 +++ b/Documentation/hwmon/nct6775 @@ -69,6 +69,24 @@ is driven slower/faster to reach the predefined range again. The mode works for fan1-fan5. +sysfs attributes +---------------- + +pwm[1-5] - this file stores PWM duty cycle or DC value (fan speed) in range: + 0 (lowest speed) to 255 (full) + +pwm[1-5]_enable - this file controls mode of fan/temperature control: + * 0 Fan control disabled (fans set to maximum speed) + * 1 Manual mode, write to pwm[0-5] any value 0-255 + * 2 "Thermal Cruise" mode + * 3 "Fan Speed Cruise" mode + * 4 "Smart Fan III" mode (NCT6775F only) + * 5 "Smart Fan IV" mode + +pwm[1-5]_mode - controls if output is PWM or DC level + * 0 DC output + * 1 PWM output + Usage Notes ----------- |