[PATCH] hwmon: Add tachometer pulses per fan revolution to sysfs ABI

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Some fan control chips support a configuration register to set the number of
tachometer pulses per fan revolution. Add an ABI attribute to support this
configuration register.

Signed-off-by: Guenter Roeck <guenter.roeck@xxxxxxxxxxxx>
---
 Documentation/hwmon/sysfs-interface |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index c6559f1..134c6a4 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -187,6 +187,12 @@ fan[1-*]_div	Fan divisor.
 		Note that this is actually an internal clock divisor, which
 		affects the measurable speed range, not the read value.
 
+fan[1-*]_pulses	Number of tachometer pulses per fan revolution.
+		Integer value, typically between 1 and 4.
+		RW
+		Should only be created if the chip has a register to configure
+		the value.
+
 fan[1-*]_target
 		Desired fan speed
 		Unit: revolution/min (RPM)
-- 
1.7.3.1


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