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authorGuenter Roeck <guenter.roeck@ericsson.com>2010-06-29 00:22:27 +0400
committerGuenter Roeck <guenter.roeck@ericsson.com>2011-01-08 21:55:49 +0300
commit581693b51e44bb2c0cca16ab0c8d3cb535fd2ac8 (patch)
treefb856e64f4fefaecc3c9809b9220c61f6c6a4c2a /Documentation/hwmon/sysfs-interface
parentae9e0ce73e9fc55a620e0b3bd4a154330a7e64cc (diff)
downloadlinux-581693b51e44bb2c0cca16ab0c8d3cb535fd2ac8.tar.xz
hwmon: sysfs ABI updates
Add attributes supported by various PMBus devices to hwmon sysfs ABI. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'Documentation/hwmon/sysfs-interface')
-rw-r--r--Documentation/hwmon/sysfs-interface40
1 files changed, 33 insertions, 7 deletions
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 645699010551..5997b5efc1cb 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -384,10 +384,20 @@ curr[1-*]_min Current min value.
Unit: milliampere
RW
+curr[1-*]_lcrit Current critical low value
+ Unit: milliampere
+ RW
+
+curr[1-*]_crit Current critical high value.
+ Unit: milliampere
+ RW
+
curr[1-*]_input Current input value
Unit: milliampere
RO
+Also see the Alarms section for status flags associated with currents.
+
*********
* Power *
*********
@@ -450,13 +460,6 @@ power[1-*]_accuracy Accuracy of the power meter.
Unit: Percent
RO
-power[1-*]_alarm 1 if the system is drawing more power than the
- cap allows; 0 otherwise. A poll notification is
- sent to this file when the power use exceeds the
- cap. This file only appears if the cap is known
- to be enforced by hardware.
- RO
-
power[1-*]_cap If power use rises above this limit, the
system should take action to reduce power use.
A poll notification is sent to this file if the
@@ -479,6 +482,20 @@ power[1-*]_cap_min Minimum cap that can be set.
Unit: microWatt
RO
+power[1-*]_max Maximum power.
+ Unit: microWatt
+ RW
+
+power[1-*]_crit Critical maximum power.
+ If power rises to or above this limit, the
+ system is expected take drastic action to reduce
+ power consumption, such as a system shutdown or
+ a forced powerdown of some devices.
+ Unit: microWatt
+ RW
+
+Also see the Alarms section for status flags associated with power readings.
+
**********
* Energy *
**********
@@ -501,6 +518,7 @@ implementation.
in[0-*]_alarm
curr[1-*]_alarm
+power[1-*]_alarm
fan[1-*]_alarm
temp[1-*]_alarm
Channel alarm
@@ -512,12 +530,20 @@ OR
in[0-*]_min_alarm
in[0-*]_max_alarm
+in[0-*]_lcrit_alarm
+in[0-*]_crit_alarm
curr[1-*]_min_alarm
curr[1-*]_max_alarm
+curr[1-*]_lcrit_alarm
+curr[1-*]_crit_alarm
+power[1-*]_cap_alarm
+power[1-*]_max_alarm
+power[1-*]_crit_alarm
fan[1-*]_min_alarm
fan[1-*]_max_alarm
temp[1-*]_min_alarm
temp[1-*]_max_alarm
+temp[1-*]_lcrit_alarm
temp[1-*]_crit_alarm
temp[1-*]_emergency_alarm
Limit alarm