diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
commit | d0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch) | |
tree | 7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /Documentation/hwmon | |
parent | e914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff) |
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r-- | Documentation/hwmon/abituguru | 2 | ||||
-rw-r--r-- | Documentation/hwmon/ftsteutates | 23 | ||||
-rw-r--r-- | Documentation/hwmon/ina3221 | 35 | ||||
-rw-r--r-- | Documentation/hwmon/jc42 | 3 | ||||
-rw-r--r-- | Documentation/hwmon/max1668 | 2 | ||||
-rw-r--r-- | Documentation/hwmon/sht3x | 76 | ||||
-rw-r--r-- | Documentation/hwmon/submitting-patches | 40 | ||||
-rw-r--r-- | Documentation/hwmon/tmp401 | 14 |
8 files changed, 184 insertions, 11 deletions
diff --git a/Documentation/hwmon/abituguru b/Documentation/hwmon/abituguru index f1d4fe4c3..44013d23b 100644 --- a/Documentation/hwmon/abituguru +++ b/Documentation/hwmon/abituguru @@ -24,7 +24,7 @@ Supported chips: AW9D-MAX) (2) 1) For revisions 2 and 3 uGuru's the driver can autodetect the sensortype (Volt or Temp) for bank1 sensors, for revision 1 uGuru's - this doesnot always work. For these uGuru's the autodection can + this does not always work. For these uGuru's the autodetection can be overridden with the bank1_types module param. For all 3 known revison 1 motherboards the correct use of this param is: bank1_types=1,1,0,0,0,0,0,2,0,0,0,0,2,0,0,1 diff --git a/Documentation/hwmon/ftsteutates b/Documentation/hwmon/ftsteutates new file mode 100644 index 000000000..8c10a916d --- /dev/null +++ b/Documentation/hwmon/ftsteutates @@ -0,0 +1,23 @@ +Kernel driver ftsteutates +===================== + +Supported chips: + * FTS Teutates + Prefix: 'ftsteutates' + Addresses scanned: I2C 0x73 (7-Bit) + +Author: Thilo Cestonaro <thilo.cestonaro@ts.fujitsu.com> + + +Description +----------- +The BMC Teutates is the Eleventh generation of Superior System +monitoring and thermal management solution. It is builds on the basic +functionality of the BMC Theseus and contains several new features and +enhancements. It can monitor up to 4 voltages, 16 temperatures and +8 fans. It also contains an integrated watchdog which is currently +implemented in this driver. + +Specification of the chip can be found here: +ftp://ftp.ts.fujitsu.com/pub/Mainboard-OEM-Sales/Services/Software&Tools/Linux_SystemMonitoring&Watchdog&GPIO/BMC-Teutates_Specification_V1.21.pdf +ftp://ftp.ts.fujitsu.com/pub/Mainboard-OEM-Sales/Services/Software&Tools/Linux_SystemMonitoring&Watchdog&GPIO/Fujitsu_mainboards-1-Sensors_HowTo-en-US.pdf diff --git a/Documentation/hwmon/ina3221 b/Documentation/hwmon/ina3221 new file mode 100644 index 000000000..0ff74854c --- /dev/null +++ b/Documentation/hwmon/ina3221 @@ -0,0 +1,35 @@ +Kernel driver ina3221 +===================== + +Supported chips: + * Texas Instruments INA3221 + Prefix: 'ina3221' + Addresses: I2C 0x40 - 0x43 + Datasheet: Publicly available at the Texas Instruments website + http://www.ti.com/ + +Author: Andrew F. Davis <afd@ti.com> + +Description +----------- + +The Texas Instruments INA3221 monitors voltage, current, and power on the high +side of up to three D.C. power supplies. The INA3221 monitors both shunt drop +and supply voltage, with programmable conversion times and averaging, current +and power are calculated host-side from these. + +Sysfs entries +------------- + +in[123]_input Bus voltage(mV) channels +curr[123]_input Current(mA) measurement channels +shunt[123]_resistor Shunt resistance(uOhm) channels +curr[123]_crit Critical alert current(mA) setting, activates the + corresponding alarm when the respective current + is above this value +curr[123]_crit_alarm Critical alert current limit exceeded +curr[123]_max Warning alert current(mA) setting, activates the + corresponding alarm when the respective current + average is above this value. +curr[123]_max_alarm Warning alert current limit exceeded +in[456]_input Shunt voltage(uV) for channels 1, 2, and 3 respectively diff --git a/Documentation/hwmon/jc42 b/Documentation/hwmon/jc42 index f7f1830a2..b4b671f22 100644 --- a/Documentation/hwmon/jc42 +++ b/Documentation/hwmon/jc42 @@ -18,10 +18,11 @@ Supported chips: * Maxim MAX6604 Datasheets: http://datasheets.maxim-ic.com/en/ds/MAX6604.pdf - * Microchip MCP9804, MCP9805, MCP98242, MCP98243, MCP98244, MCP9843 + * Microchip MCP9804, MCP9805, MCP9808, MCP98242, MCP98243, MCP98244, MCP9843 Datasheets: http://ww1.microchip.com/downloads/en/DeviceDoc/22203C.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/21977b.pdf + http://ww1.microchip.com/downloads/en/DeviceDoc/25095A.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/21996a.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/22153c.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/22327A.pdf diff --git a/Documentation/hwmon/max1668 b/Documentation/hwmon/max1668 index 0616ed975..8f9d570db 100644 --- a/Documentation/hwmon/max1668 +++ b/Documentation/hwmon/max1668 @@ -17,7 +17,7 @@ This driver implements support for the Maxim MAX1668, MAX1805 and MAX1989 chips. The three devices are very similar, but the MAX1805 has a reduced feature -set; only two remote temperature inputs vs the four avaible on the other +set; only two remote temperature inputs vs the four available on the other two ICs. The driver is able to distinguish between the devices and creates sysfs diff --git a/Documentation/hwmon/sht3x b/Documentation/hwmon/sht3x new file mode 100644 index 000000000..b0d88184f --- /dev/null +++ b/Documentation/hwmon/sht3x @@ -0,0 +1,76 @@ +Kernel driver sht3x +=================== + +Supported chips: + * Sensirion SHT3x-DIS + Prefix: 'sht3x' + Addresses scanned: none + Datasheet: http://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/Humidity/Sensirion_Humidity_Datasheet_SHT3x_DIS.pdf + +Author: + David Frey <david.frey@sensirion.com> + Pascal Sachs <pascal.sachs@sensirion.com> + +Description +----------- + +This driver implements support for the Sensirion SHT3x-DIS chip, a humidity +and temperature sensor. Temperature is measured in degrees celsius, relative +humidity is expressed as a percentage. In the sysfs interface, all values are +scaled by 1000, i.e. the value for 31.5 degrees celsius is 31500. + +The device communicates with the I2C protocol. Sensors can have the I2C +addresses 0x44 or 0x45, depending on the wiring. See +Documentation/i2c/instantiating-devices for methods to instantiate the device. + +There are two options configurable by means of sht3x_platform_data: +1. blocking (pull the I2C clock line down while performing the measurement) or + non-blocking mode. Blocking mode will guarantee the fastest result but + the I2C bus will be busy during that time. By default, non-blocking mode + is used. Make sure clock-stretching works properly on your device if you + want to use blocking mode. +2. high or low accuracy. High accuracy is used by default and using it is + strongly recommended. + +The sht3x sensor supports a single shot mode as well as 5 periodic measure +modes, which can be controlled with the update_interval sysfs interface. +The allowed update_interval in milliseconds are as follows: + * 0 single shot mode + * 2000 0.5 Hz periodic measurement + * 1000 1 Hz periodic measurement + * 500 2 Hz periodic measurement + * 250 4 Hz periodic measurement + * 100 10 Hz periodic measurement + +In the periodic measure mode, the sensor automatically triggers a measurement +with the configured update interval on the chip. When a temperature or humidity +reading exceeds the configured limits, the alert attribute is set to 1 and +the alert pin on the sensor is set to high. +When the temperature and humidity readings move back between the hysteresis +values, the alert bit is set to 0 and the alert pin on the sensor is set to +low. + +sysfs-Interface +--------------- + +temp1_input: temperature input +humidity1_input: humidity input +temp1_max: temperature max value +temp1_max_hyst: temperature hysteresis value for max limit +humidity1_max: humidity max value +humidity1_max_hyst: humidity hysteresis value for max limit +temp1_min: temperature min value +temp1_min_hyst: temperature hysteresis value for min limit +humidity1_min: humidity min value +humidity1_min_hyst: humidity hysteresis value for min limit +temp1_alarm: alarm flag is set to 1 if the temperature is outside the + configured limits. Alarm only works in periodic measure mode +humidity1_alarm: alarm flag is set to 1 if the humidity is outside the + configured limits. Alarm only works in periodic measure mode +heater_enable: heater enable, heating element removes excess humidity from + sensor + 0: turned off + 1: turned on +update_interval: update interval, 0 for single shot, interval in msec + for periodic measurement. If the interval is not supported + by the sensor, the next faster interval is chosen diff --git a/Documentation/hwmon/submitting-patches b/Documentation/hwmon/submitting-patches index d201828d2..57f60307a 100644 --- a/Documentation/hwmon/submitting-patches +++ b/Documentation/hwmon/submitting-patches @@ -15,10 +15,15 @@ increase the chances of your change being accepted. Documentation/SubmittingPatches Documentation/CodingStyle -* If your patch generates checkpatch warnings, please refrain from explanations - such as "I don't like that coding style". Keep in mind that each unnecessary - warning helps hiding a real problem. If you don't like the kernel coding - style, don't write kernel drivers. +* Please run your patch through 'checkpatch --strict'. There should be no + errors, no warnings, and few if any check messages. If there are any + messages, please be prepared to explain. + +* If your patch generates checkpatch errors, warnings, or check messages, + please refrain from explanations such as "I prefer that coding style". + Keep in mind that each unnecessary message helps hiding a real problem, + and a consistent coding style makes it easier for others to understand + and review the code. * Please test your patch thoroughly. We are not your test group. Sometimes a patch can not or not completely be tested because of missing @@ -61,15 +66,30 @@ increase the chances of your change being accepted. * Make sure that all dependencies are listed in Kconfig. +* Please list include files in alphabetic order. + +* Please align continuation lines with '(' on the previous line. + * Avoid forward declarations if you can. Rearrange the code if necessary. +* Avoid macros to generate groups of sensor attributes. It not only confuses + checkpatch, but also makes it more difficult to review the code. + * Avoid calculations in macros and macro-generated functions. While such macros may save a line or so in the source, it obfuscates the code and makes code review more difficult. It may also result in code which is more complicated than necessary. Use inline functions or just regular functions instead. +* Limit the number of kernel log messages. In general, your driver should not + generate an error message just because a runtime operation failed. Report + errors to user space instead, using an appropriate error code. Keep in mind + that kernel error log messages not only fill up the kernel log, but also are + printed synchronously, most likely with interrupt disabled, often to a serial + console. Excessive logging can seriously affect system performance. + * Use devres functions whenever possible to allocate resources. For rationale and supported functions, please see Documentation/driver-model/devres.txt. + If a function is not supported by devres, consider using devm_add_action(). * If the driver has a detect function, make sure it is silent. Debug messages and messages printed after a successful detection are acceptable, but it @@ -96,8 +116,16 @@ increase the chances of your change being accepted. writing to it might cause a bad misconfiguration. * Make sure there are no race conditions in the probe function. Specifically, - completely initialize your chip first, then create sysfs entries and register - with the hwmon subsystem. + completely initialize your chip and your driver first, then register with + the hwmon subsystem. + +* Use devm_hwmon_device_register_with_groups() or, if your driver needs a remove + function, hwmon_device_register_with_groups() to register your driver with the + hwmon subsystem. Try using devm_add_action() instead of a remove function if + possible. Do not use hwmon_device_register(). + +* Your driver should be buildable as module. If not, please be prepared to + explain why it has to be built into the kernel. * Do not provide support for deprecated sysfs attributes. diff --git a/Documentation/hwmon/tmp401 b/Documentation/hwmon/tmp401 index 711f75e18..2d9ca4221 100644 --- a/Documentation/hwmon/tmp401 +++ b/Documentation/hwmon/tmp401 @@ -22,6 +22,9 @@ Supported chips: Prefix: 'tmp435' Addresses scanned: I2C 0x48 - 0x4f Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp435.html + * Texas Instruments TMP461 + Prefix: 'tmp461' + Datasheet: http://www.ti.com/product/tmp461 Authors: Hans de Goede <hdegoede@redhat.com> @@ -31,8 +34,8 @@ Description ----------- This driver implements support for Texas Instruments TMP401, TMP411, -TMP431, TMP432 and TMP435 chips. These chips implement one or two remote -and one local temperature sensors. Temperature is measured in degrees +TMP431, TMP432, TMP435, and TMP461 chips. These chips implement one or two +remote and one local temperature sensors. Temperature is measured in degrees Celsius. Resolution of the remote sensor is 0.0625 degree. Local sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not supported by the driver so far, so using the default resolution of 0.5 @@ -55,3 +58,10 @@ some additional features. TMP432 is compatible with TMP401 and TMP431. It supports two external temperature sensors. + +TMP461 is compatible with TMP401. It supports offset correction +that is applied to the remote sensor. + +* Sensor offset values are temperature values + + Exported via sysfs attribute tempX_offset |