diff options
author | Guenter Roeck <linux@roeck-us.net> | 2012-12-04 11:30:54 -0500 |
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committer | Guenter Roeck <linux@roeck-us.net> | 2013-04-08 00:16:39 -0400 |
commit | 77eb5b3703d995e6c72ef4a1e5411821f81df7e4 (patch) | |
tree | f91488312051b427872d45c7b7b62b0bee7b2098 /Documentation/hwmon/nct6775 | |
parent | 84d19d92f78e10f8bdc1b3e1b5ddcaf5895edaf7 (diff) |
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/nct6775')
-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. | |||
69 | 69 | ||
70 | The mode works for fan1-fan5. | 70 | The mode works for fan1-fan5. |
71 | 71 | ||
72 | sysfs attributes | ||
73 | ---------------- | ||
74 | |||
75 | pwm[1-5] - this file stores PWM duty cycle or DC value (fan speed) in range: | ||
76 | 0 (lowest speed) to 255 (full) | ||
77 | |||
78 | pwm[1-5]_enable - this file controls mode of fan/temperature control: | ||
79 | * 0 Fan control disabled (fans set to maximum speed) | ||
80 | * 1 Manual mode, write to pwm[0-5] any value 0-255 | ||
81 | * 2 "Thermal Cruise" mode | ||
82 | * 3 "Fan Speed Cruise" mode | ||
83 | * 4 "Smart Fan III" mode (NCT6775F only) | ||
84 | * 5 "Smart Fan IV" mode | ||
85 | |||
86 | pwm[1-5]_mode - controls if output is PWM or DC level | ||
87 | * 0 DC output | ||
88 | * 1 PWM output | ||
89 | |||
72 | Usage Notes | 90 | Usage Notes |
73 | ----------- | 91 | ----------- |
74 | 92 | ||