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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 04:56:51 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 04:56:51 +0200
commit7aefd944f038c7469571adb37769cb6f3924ecfa (patch)
treef0a8dc23633b6bbbc4f0bff932f332e847fb6c1b /Documentation/hwmon/adt7411.rst
parentMerge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kerne... (diff)
parenthwmon: (lm75) Add support for TMP75B (diff)
downloadlinux-7aefd944f038c7469571adb37769cb6f3924ecfa.tar.xz
linux-7aefd944f038c7469571adb37769cb6f3924ecfa.zip
Merge tag 'hwmon-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck: - Add driver for Intersil ISL68137 PWM Controller - Add driver for Lochnagar 2 - Add driver for Infineon IR38064 Voltage Regulator - Add support for TMP75B to lm75 driver - Convert documentation to ReST format - Use request_muxed_region for Super-IO accesses in several drivers - Add 'samples' attribute to ABI, and start using it - Add support for custom sysfs attributes to pmbus drivers (used in ISL68137 driver) - Introduce HWMON_CHANNEL_INFO macro - Automated changes: - Use permission specific [SENSOR_][DEVICE_]ATTR variants - Fix build warnings due to unused of_device_id structures - Use HWMON_CHANNEL_INFO macro - Various minor improvements and fixes * tag 'hwmon-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (125 commits) hwmon: (lm75) Add support for TMP75B dt-bindings: hwmon: Add tmp75b to lm75.txt hwmon: (s3c) Use dev_get_drvdata() hwmon: (max6650) Drop call to thermal_cdev_update docs: hwmon: remove the extension from .rst files docs: hwmon: convert three docs to ReST format hwmon: (max6650) add thermal cooling device capability hwmon: (ina3221) Add voltage conversion time settings hwmon: (ina3221) Do not read-back to cache reg_config docs: hwmon: Add an index file and rename docs to *.rst docs: hwmon: convert remaining files to ReST format docs: hwmon: misc files: convert to ReST format docs: hwmon: pmbus files: convert to ReST format docs: hwmon: k8temp, w83793: convert to ReST format docs: hwmon: da9052, da9055: convert to ReST format docs: hwmon: wm831x, wm8350: convert to ReST format docs: hwmon: dme1737, vt1211: convert to ReST format docs: hwmon: ads1015: convert to ReST format docs: hwmon: asc7621: convert to ReST format docs: hwmon: ibmpowernv: convert to ReST format ...
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+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.