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authorDaniel J Blueman <daniel.blueman@gmail.com>2009-12-14 18:01:37 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 08:53:35 -0800
commit41e9a062361de204d3710038925ae7f356ebb40d (patch)
tree8615207c3c024f8835fe867f18038dca101846b1 /Documentation/hwmon
parente40d6eaa79bc9d9d347c3c51fe0c9204e9025b79 (diff)
downloadblackbird-op-linux-41e9a062361de204d3710038925ae7f356ebb40d.tar.gz
blackbird-op-linux-41e9a062361de204d3710038925ae7f356ebb40d.zip
hwmon: w83627ehf updates
Add control of fan minimum turn-on output levels, decoupling it from the fan turn-off output level. Add control of rate of change of fan output level. These in turn allow lower turn-off rotor speed and smoother transitions for better thermal and acoustic control authority. Add support for constant fan speed and proportional-response operations modes. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: David Hubbard <david.c.hubbard@gmail.com> Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/w83627ehf10
1 files changed, 8 insertions, 2 deletions
diff --git a/Documentation/hwmon/w83627ehf b/Documentation/hwmon/w83627ehf
index 02b74899edaf..b7e42ec4b26b 100644
--- a/Documentation/hwmon/w83627ehf
+++ b/Documentation/hwmon/w83627ehf
@@ -81,8 +81,14 @@ pwm[1-4] - this file stores PWM duty cycle or DC value (fan speed) in range:
0 (stop) to 255 (full)
pwm[1-4]_enable - this file controls mode of fan/temperature control:
- * 1 Manual Mode, write to pwm file any value 0-255 (full speed)
- * 2 Thermal Cruise
+ * 1 Manual mode, write to pwm file any value 0-255 (full speed)
+ * 2 "Thermal Cruise" mode
+ * 3 "Fan Speed Cruise" mode
+ * 4 "Smart Fan III" mode
+
+pwm[1-4]_mode - controls if output is PWM or DC level
+ * 0 DC output (0 - 12v)
+ * 1 PWM output
Thermal Cruise mode
-------------------
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