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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 11:33:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 11:33:46 -0700
commitd1e0fe252e1c410164127b3000613afeaf47e49f (patch)
tree6848bbd6b64d4bb5e64bbd9a17598f3500719776 /Documentation
parentcc106eb35ed4abea675bce0d8fe40a46ff0b4a72 (diff)
parent6d034059eef080a0cdda92b45baa18cb00a19835 (diff)
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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: (23 commits) hwmon: (lm75) Add support for the Texas Instruments TMP105 hwmon: (ltc4245) Read only one GPIO pin hwmon: (dme1737) Add SCH5127 support hwmon: (tmp102) Don't always stop chip at exit hwmon: (tmp102) Fix suspend and resume functions hwmon: (tmp102) Various fixes hwmon: Driver for TI TMP102 temperature sensor hwmon: EMC1403 thermal sensor support hwmon: (applesmc) Add temperature sensor labels to sysfs interface hwmon: (applesmc) Add generic support for MacBook Pro 7 hwmon: (applesmc) Add generic support for MacBook Pro 6 hwmon: (applesmc) Add support for MacBook Pro 5,3 and 5,4 hwmon: (tmp401) Reorganize code to get rid of static forward declarations hwmon: (tmp401) Use constants for sysfs file permissions hwmon: (adm1031) Allow setting update rate hwmon: Add description of the update_rate sysfs attribute hwmon: (lm90) Use programmed update rate hwmon: (f71882fg) Acquire I/O regions while we're working with them hwmon: (f71882fg) Code cleanup hwmon: (f71882fg) Use strict_stro(l|ul) instead of simple_strto$1 ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/hwmon/dme173751
-rw-r--r--Documentation/hwmon/lm637
-rw-r--r--Documentation/hwmon/ltc42454
-rw-r--r--Documentation/hwmon/sysfs-interface13
-rw-r--r--Documentation/hwmon/tmp10226
5 files changed, 85 insertions, 16 deletions
diff --git a/Documentation/hwmon/dme1737 b/Documentation/hwmon/dme1737
index 001d2e70bc1..fc5df7654d6 100644
--- a/Documentation/hwmon/dme1737
+++ b/Documentation/hwmon/dme1737
@@ -9,11 +9,15 @@ Supported chips:
* SMSC SCH3112, SCH3114, SCH3116
Prefix: 'sch311x'
Addresses scanned: none, address read from Super-I/O config space
- Datasheet: http://www.nuhorizons.com/FeaturedProducts/Volume1/SMSC/311x.pdf
+ Datasheet: Available on the Internet
* SMSC SCH5027
Prefix: 'sch5027'
Addresses scanned: I2C 0x2c, 0x2d, 0x2e
Datasheet: Provided by SMSC upon request and under NDA
+ * SMSC SCH5127
+ Prefix: 'sch5127'
+ Addresses scanned: none, address read from Super-I/O config space
+ Datasheet: Provided by SMSC upon request and under NDA
Authors:
Juerg Haefliger <juergh@gmail.com>
@@ -36,8 +40,8 @@ Description
-----------
This driver implements support for the hardware monitoring capabilities of the
-SMSC DME1737 and Asus A8000 (which are the same), SMSC SCH5027, and SMSC
-SCH311x Super-I/O chips. These chips feature monitoring of 3 temp sensors
+SMSC DME1737 and Asus A8000 (which are the same), SMSC SCH5027, SCH311x,
+and SCH5127 Super-I/O chips. These chips feature monitoring of 3 temp sensors
temp[1-3] (2 remote diodes and 1 internal), 7 voltages in[0-6] (6 external and
1 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement
up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and
@@ -48,14 +52,14 @@ Fan[3-6] and pwm[3,5-6] are optional features and their availability depends on
the configuration of the chip. The driver will detect which features are
present during initialization and create the sysfs attributes accordingly.
-For the SCH311x, fan[1-3] and pwm[1-3] are always present and fan[4-6] and
-pwm[5-6] don't exist.
+For the SCH311x and SCH5127, fan[1-3] and pwm[1-3] are always present and
+fan[4-6] and pwm[5-6] don't exist.
The hardware monitoring features of the DME1737, A8000, and SCH5027 are only
-accessible via SMBus, while the SCH311x only provides access via the ISA bus.
-The driver will therefore register itself as an I2C client driver if it detects
-a DME1737, A8000, or SCH5027 and as a platform driver if it detects a SCH311x
-chip.
+accessible via SMBus, while the SCH311x and SCH5127 only provide access via
+the ISA bus. The driver will therefore register itself as an I2C client driver
+if it detects a DME1737, A8000, or SCH5027 and as a platform driver if it
+detects a SCH311x or SCH5127 chip.
Voltage Monitoring
@@ -76,7 +80,7 @@ DME1737, A8000:
in6: Vbat (+3.0V) 0V - 4.38V
SCH311x:
- in0: +2.5V 0V - 6.64V
+ in0: +2.5V 0V - 3.32V
in1: Vccp (processor core) 0V - 2V
in2: VCC (internal +3.3V) 0V - 4.38V
in3: +5V 0V - 6.64V
@@ -93,6 +97,15 @@ SCH5027:
in5: VTR (+3.3V standby) 0V - 4.38V
in6: Vbat (+3.0V) 0V - 4.38V
+SCH5127:
+ in0: +2.5 0V - 3.32V
+ in1: Vccp (processor core) 0V - 3V
+ in2: VCC (internal +3.3V) 0V - 4.38V
+ in3: V2_IN 0V - 1.5V
+ in4: V1_IN 0V - 1.5V
+ in5: VTR (+3.3V standby) 0V - 4.38V
+ in6: Vbat (+3.0V) 0V - 4.38V
+
Each voltage input has associated min and max limits which trigger an alarm
when crossed.
@@ -293,3 +306,21 @@ pwm[1-3]_auto_point1_pwm RW Auto PWM pwm point. Auto_point1 is the
pwm[1-3]_auto_point2_pwm RO Auto PWM pwm point. Auto_point2 is the
full-speed duty-cycle which is hard-
wired to 255 (100% duty-cycle).
+
+Chip Differences
+----------------
+
+Feature dme1737 sch311x sch5027 sch5127
+-------------------------------------------------------
+temp[1-3]_offset yes yes
+vid yes
+zone3 yes yes yes
+zone[1-3]_hyst yes yes
+pwm min/off yes yes
+fan3 opt yes opt yes
+pwm3 opt yes opt yes
+fan4 opt opt
+fan5 opt opt
+pwm5 opt opt
+fan6 opt opt
+pwm6 opt opt
diff --git a/Documentation/hwmon/lm63 b/Documentation/hwmon/lm63
index 31660bf9797..b9843eab1af 100644
--- a/Documentation/hwmon/lm63
+++ b/Documentation/hwmon/lm63
@@ -7,6 +7,11 @@ Supported chips:
Addresses scanned: I2C 0x4c
Datasheet: Publicly available at the National Semiconductor website
http://www.national.com/pf/LM/LM63.html
+ * National Semiconductor LM64
+ Prefix: 'lm64'
+ Addresses scanned: I2C 0x18 and 0x4e
+ Datasheet: Publicly available at the National Semiconductor website
+ http://www.national.com/pf/LM/LM64.html
Author: Jean Delvare <khali@linux-fr.org>
@@ -55,3 +60,5 @@ The lm63 driver will not update its values more frequently than every
second; reading them more often will do no harm, but will return 'old'
values.
+The LM64 is effectively an LM63 with GPIO lines. The driver does not
+support these GPIO lines at present.
diff --git a/Documentation/hwmon/ltc4245 b/Documentation/hwmon/ltc4245
index 02838a47d86..86b5880d850 100644
--- a/Documentation/hwmon/ltc4245
+++ b/Documentation/hwmon/ltc4245
@@ -72,9 +72,7 @@ in6_min_alarm 5v output undervoltage alarm
in7_min_alarm 3v output undervoltage alarm
in8_min_alarm Vee (-12v) output undervoltage alarm
-in9_input GPIO #1 voltage data
-in10_input GPIO #2 voltage data
-in11_input GPIO #3 voltage data
+in9_input GPIO voltage data
power1_input 12v power usage (mW)
power2_input 5v power usage (mW)
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 3de6b0bcb14..d4e2917c6f1 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -80,9 +80,9 @@ All entries (except name) are optional, and should only be created in a
given driver if the chip has the feature.
-********
-* Name *
-********
+*********************
+* Global attributes *
+*********************
name The chip name.
This should be a short, lowercase string, not containing
@@ -91,6 +91,13 @@ name The chip name.
I2C devices get this attribute created automatically.
RO
+update_rate The rate at which the chip will update readings.
+ Unit: millisecond
+ RW
+ Some devices have a variable update rate. This attribute
+ can be used to change the update rate to the desired
+ frequency.
+
************
* Voltages *
diff --git a/Documentation/hwmon/tmp102 b/Documentation/hwmon/tmp102
new file mode 100644
index 00000000000..8454a776312
--- /dev/null
+++ b/Documentation/hwmon/tmp102
@@ -0,0 +1,26 @@
+Kernel driver tmp102
+====================
+
+Supported chips:
+ * Texas Instruments TMP102
+ Prefix: 'tmp102'
+ Addresses scanned: none
+ Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp102.html
+
+Author:
+ Steven King <sfking@fdwdc.com>
+
+Description
+-----------
+
+The Texas Instruments TMP102 implements one temperature sensor. Limits can be
+set through the Overtemperature Shutdown register and Hysteresis register. The
+sensor is accurate to 0.5 degree over the range of -25 to +85 C, and to 1.0
+degree from -40 to +125 C. Resolution of the sensor is 0.0625 degree. The
+operating temperature has a minimum of -55 C and a maximum of +150 C.
+
+The TMP102 has a programmable update rate that can select between 8, 4, 1, and
+0.5 Hz. (Currently the driver only supports the default of 4 Hz).
+
+The driver provides the common sysfs-interface for temperatures (see
+Documentation/hwmon/sysfs-interface under Temperatures).