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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-16 15:07:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-16 15:07:46 -0800
commitadfeb6e9f46ded31b46fe406ad0dd6a9b4e0f7fe (patch)
tree244eeecd2f0ecce8b84ab1301824168f1651d632 /Documentation/hwmon/it87
parent97740400bc76b64781d01f8cdfbcf750582006ef (diff)
parent5f8b1f877e0212bfde8cb950725391f4a50c9396 (diff)
downloadop-kernel-dev-adfeb6e9f46ded31b46fe406ad0dd6a9b4e0f7fe.zip
op-kernel-dev-adfeb6e9f46ded31b46fe406ad0dd6a9b4e0f7fe.tar.gz
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: (sysfs-interface) Update tempX_type attribute to be more generic hwmon: (adm1031) Fix coding style issues hwmon: (it87) Add IT8728F support hwmon: (coretemp) Add missing section annotations hwmon: (lm90) Add range check to set_update_interval hwmon: (lm63) Support extended lookup table of LM96163 hwmon: (lm63) Expose automatic fan speed control lookup table hwmon: (lm63) Fix incorrect comment about I2C address hwmon: (lm63) LM64 has a dedicated pin for tachometer hwmon: (lm63) Add sensor type attribute for external sensor on LM96163 hwmon: (lm63) Add support for update_interval sysfs attribute hwmon: (lm63) Add support for writing the external critical temperature hwmon: (lm63) Add support for unsigned upper temperature limits hwmon: (lm63) Add support for LM96163 hwmon: (lm63) Add support for external temperature offset register hwmon: (lm63) Fix checkpatch errors hwmon: (max1111) Change sysfs interface to in[0-3]_input in millivolts
Diffstat (limited to 'Documentation/hwmon/it87')
-rw-r--r--Documentation/hwmon/it8713
1 files changed, 10 insertions, 3 deletions
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87
index 6f496a5..23b7def 100644
--- a/Documentation/hwmon/it87
+++ b/Documentation/hwmon/it87
@@ -26,6 +26,10 @@ Supported chips:
Prefix: 'it8721'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
+ * IT8728F
+ Prefix: 'it8728'
+ Addresses scanned: from Super I/O config space (8 I/O ports)
+ Datasheet: Not publicly available
* SiS950 [clone of IT8705F]
Prefix: 'it87'
Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -71,7 +75,7 @@ Description
-----------
This driver implements support for the IT8705F, IT8712F, IT8716F,
-IT8718F, IT8720F, IT8721F, IT8726F, IT8758E and SiS950 chips.
+IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E and SiS950 chips.
These chips are 'Super I/O chips', supporting floppy disks, infrared ports,
joysticks and other miscellaneous stuff. For hardware monitoring, they
@@ -105,6 +109,9 @@ The IT8726F is just bit enhanced IT8716F with additional hardware
for AMD power sequencing. Therefore the chip will appear as IT8716F
to userspace applications.
+The IT8728F is considered compatible with the IT8721F, until a datasheet
+becomes available (hopefully.)
+
Temperatures are measured in degrees Celsius. An alarm is triggered once
when the Overtemperature Shutdown limit is crossed.
@@ -121,8 +128,8 @@ alarm is triggered if the voltage has crossed a programmable minimum or
maximum limit. Note that minimum in this case always means 'closest to
zero'; this is important for negative voltage measurements. All voltage
inputs can measure voltages between 0 and 4.08 volts, with a resolution of
-0.016 volt (except IT8721F/IT8758E: 0.012 volt.) The battery voltage in8 does
-not have limit registers.
+0.016 volt (except IT8721F/IT8758E and IT8728F: 0.012 volt.) The battery
+voltage in8 does not have limit registers.
On the IT8721F/IT8758E, some voltage inputs are internal and scaled inside
the chip (in7, in8 and optionally in3). The driver handles this transparently
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