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authorShilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>2018-07-06 17:26:06 +0530
committerGuenter Roeck <linux@roeck-us.net>2018-07-08 20:08:13 -0700
commitfb41a710f84efd1f7a85ffcc4adead6a971b5163 (patch)
tree6a23cad4ae4ad17ebde00df3d35f66148eb7c423 /Documentation/hwmon
parent65afb4c8e7e4e7e74b28efa1df62da503ca3e7a6 (diff)
downloadlinux-fb41a710f84efd1f7a85ffcc4adead6a971b5163.tar.bz2
hwmon: Document the sensor enable attribute
Document new ABI attributes: in[0-*]_enable fan[1-*]_enable temp[1-*]_enable curr[1-*]_enable power[1-*]_enable energy[1-*]_enable humidity[1-*]_enable Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> [groeck: Updated commit text, removed unnecessary details from ABI description] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/sysfs-interface48
1 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index fc337c317c67..2b9e1005d88b 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -171,6 +171,13 @@ in[0-*]_label Suggested voltage channel label.
user-space.
RO
+in[0-*]_enable
+ Enable or disable the sensors.
+ When disabled the sensor read will return -ENODATA.
+ 1: Enable
+ 0: Disable
+ RW
+
cpu[0-*]_vid CPU core reference voltage.
Unit: millivolt
RO
@@ -236,6 +243,13 @@ fan[1-*]_label Suggested fan channel label.
In all other cases, the label is provided by user-space.
RO
+fan[1-*]_enable
+ Enable or disable the sensors.
+ When disabled the sensor read will return -ENODATA.
+ 1: Enable
+ 0: Disable
+ RW
+
Also see the Alarms section for status flags associated with fans.
@@ -409,6 +423,13 @@ temp_reset_history
Reset temp_lowest and temp_highest for all sensors
WO
+temp[1-*]_enable
+ Enable or disable the sensors.
+ When disabled the sensor read will return -ENODATA.
+ 1: Enable
+ 0: Disable
+ RW
+
Some chips measure temperature using external thermistors and an ADC, and
report the temperature measurement as a voltage. Converting this voltage
back to a temperature (or the other way around for limits) requires
@@ -468,6 +489,13 @@ curr_reset_history
Reset currX_lowest and currX_highest for all sensors
WO
+curr[1-*]_enable
+ Enable or disable the sensors.
+ When disabled the sensor read will return -ENODATA.
+ 1: Enable
+ 0: Disable
+ RW
+
Also see the Alarms section for status flags associated with currents.
*********
@@ -566,6 +594,13 @@ power[1-*]_crit Critical maximum power.
Unit: microWatt
RW
+power[1-*]_enable Enable or disable the sensors.
+ When disabled the sensor read will return
+ -ENODATA.
+ 1: Enable
+ 0: Disable
+ RW
+
Also see the Alarms section for status flags associated with power readings.
**********
@@ -576,6 +611,12 @@ energy[1-*]_input Cumulative energy use
Unit: microJoule
RO
+energy[1-*]_enable Enable or disable the sensors.
+ When disabled the sensor read will return
+ -ENODATA.
+ 1: Enable
+ 0: Disable
+ RW
************
* Humidity *
@@ -586,6 +627,13 @@ humidity[1-*]_input Humidity
RO
+humidity[1-*]_enable Enable or disable the sensors
+ When disabled the sensor read will return
+ -ENODATA.
+ 1: Enable
+ 0: Disable
+ RW
+
**********
* Alarms *
**********