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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-06 11:33:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-06 11:33:09 -0800 |
| commit | dff6d1c5ef9116a4478908001d72ee67127ecf01 (patch) | |
| tree | 43c6e7ff8e8059f8fd733efd45b51f84b510d305 /Documentation/hwmon/adt7411 | |
| parent | 66ce3cf84deba6cc71dcf43c9d56a4278e5f712d (diff) | |
| parent | a0a5e3488a51c46f383c5faa86b53828e30ce153 (diff) | |
| download | linux-3.10-dff6d1c5ef9116a4478908001d72ee67127ecf01.tar.gz linux-3.10-dff6d1c5ef9116a4478908001d72ee67127ecf01.tar.bz2 linux-3.10-dff6d1c5ef9116a4478908001d72ee67127ecf01.zip | |
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: Remove the deprecated adt7473 driver
hwmon: Fix off-by-one kind values
hwmon: (tmp421) Fix temperature conversions
hwmon: (tmp421) Restore missing inputs
hwmon: Driver for Andigilog aSC7621 family monitoring chips
hwmon: (adt7411) Improve locking
hwmon: Add driver for ADT7411 voltage and temperature sensor
hwmon: (w83793) Add watchdog functionality
hwmon: (g760a) Make rpm_from_cnt static
hwmon: (it87) Validate auto pwm settings
hwmon: (it87) Add support for old automatic fan speed control
hwmon: (it87) Drop dead web links in documentation
hwmon: (it87) Add an entry in MAINTAINERS
hwmon: (it87) Use strict_strtol instead of simple_strtol
hwmon: (it87) Fix many checkpatch errors and warnings
hwmon: (it87) Add support for beep on alarm
hwmon: (it87) Create vid attributes by group
hwmon: (it87) Refactor attributes creation and removal
hwmon: (it87) Expose the PWM/temperature mappings
hwmon: (it87) Display fan outputs in automatic mode as such
...
Diffstat (limited to 'Documentation/hwmon/adt7411')
| -rw-r--r-- | Documentation/hwmon/adt7411 | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/hwmon/adt7411 b/Documentation/hwmon/adt7411 new file mode 100644 index 00000000000..1632960f974 --- /dev/null +++ b/Documentation/hwmon/adt7411 @@ -0,0 +1,42 @@ +Kernel driver adt7411 +===================== + +Supported chips: + * Analog Devices ADT7411 + Prefix: 'adt7411' + Addresses scanned: 0x48, 0x4a, 0x4b + Datasheet: Publicly available at the Analog Devices website + +Author: Wolfram Sang (based on adt7470 by Darrick J. Wong) + +Description +----------- + +This driver implements support for the Analog Devices ADT7411 chip. There may +be other chips that implement this interface. + +The ADT7411 can use an I2C/SMBus compatible 2-wire interface or an +SPI-compatible 4-wire interface. It provides a 10-bit analog to digital +converter which measures 1 temperature, vdd and 8 input voltages. It has an +internal temperature sensor, but an external one can also be connected (one +loses 2 inputs then). There are high- and low-limit registers for all inputs. + +Check the datasheet for details. + +sysfs-Interface +--------------- + +in0_input - vdd voltage input +in[1-8]_input - analog 1-8 input +temp1_input - temperature input + +Besides standard interfaces, this driver adds (0 = off, 1 = on): + + adc_ref_vdd - Use vdd as reference instead of 2.25 V + fast_sampling - Sample at 22.5 kHz instead of 1.4 kHz, but drop filters + no_average - Turn off averaging over 16 samples + +Notes +----- + +SPI, external temperature sensor and limit registers are not supported yet. |