path: root/Documentation
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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-20 07:07:18 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-20 07:07:18 -0800
commit8cb68bdf76a356662fda44a2af04b505b17c1b56 (patch)
tree261ad60733aeff1aff047e49f86fcb5de2b7f09f /Documentation
parentb6b19f25f69149c0912788fb81466dd2310bb095 (diff)
parentc8ecd27da78aea184aac37df0cd0ccd2a6d0e378 (diff)
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon subsystem update from Jean Delvare: "There are many improvements to the it87 driver, as well as suspend support for the Winbond Super-I/O chips, and a few other fixes." * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon-vid: Add support for AMD family 11h to 15h processors hwmon: (it87) Support PECI for additional chips hwmon: (it87) Report thermal sensor type as Intel PECI if appropriate hwmon: (it87) Manage device specific features with table hwmon: (it87) Replace pwm group macro with direct attribute definitions hwmon: (it87) Avoid quoted string splits across lines hwmon: (it87) Save fan registers in 2-dimensional array hwmon: (it87) Introduce support for tempX_offset sysfs attribute hwmon: (it87) Replace macro defining tempX_type sensors with direct definitions hwmon: (it87) Save voltage register values in 2-dimensional array hwmon: (it87) Save temperature registers in 2-dimensional array hwmon: (w83627ehf) Get rid of smatch warnings hwmon: (w83627hf) Don't touch nonexistent I2C address registers hwmon: (w83627ehf) Add support for suspend hwmon: (w83627hf) Add support for suspend hwmon: Fix PCI device reference leak in quirk
Diffstat (limited to 'Documentation')
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87
index 87850d86c55..8386aadc0a8 100644
--- a/Documentation/hwmon/it87
+++ b/Documentation/hwmon/it87
@@ -209,3 +209,13 @@ doesn't use CPU cycles.
Trip points must be set properly before switching to automatic fan speed
control mode. The driver will perform basic integrity checks before
actually switching to automatic control mode.
+Temperature offset attributes
+The driver supports temp[1-3]_offset sysfs attributes to adjust the reported
+temperature for thermal diodes or diode-connected thermal transistors.
+If a temperature sensor is configured for thermistors, the attribute values
+are ignored. If the thermal sensor type is Intel PECI, the temperature offset
+must be programmed to the critical CPU temperature.