From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- Documentation/hwmon/adt7410.rst | 94 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 Documentation/hwmon/adt7410.rst (limited to 'Documentation/hwmon/adt7410.rst') diff --git a/Documentation/hwmon/adt7410.rst b/Documentation/hwmon/adt7410.rst new file mode 100644 index 000000000..3f5a43561 --- /dev/null +++ b/Documentation/hwmon/adt7410.rst @@ -0,0 +1,94 @@ +Kernel driver adt7410 +===================== + +Supported chips: + + * Analog Devices ADT7410 + + Prefix: 'adt7410' + + Addresses scanned: None + + Datasheet: Publicly available at the Analog Devices website + + https://www.analog.com/static/imported-files/data_sheets/ADT7410.pdf + * Analog Devices ADT7420 + + Prefix: 'adt7420' + + Addresses scanned: None + + Datasheet: Publicly available at the Analog Devices website + + https://www.analog.com/static/imported-files/data_sheets/ADT7420.pdf + + * Analog Devices ADT7310 + + Prefix: 'adt7310' + + Addresses scanned: None + + Datasheet: Publicly available at the Analog Devices website + + https://www.analog.com/static/imported-files/data_sheets/ADT7310.pdf + + * Analog Devices ADT7320 + + Prefix: 'adt7320' + + Addresses scanned: None + + Datasheet: Publicly available at the Analog Devices website + + https://www.analog.com/static/imported-files/data_sheets/ADT7320.pdf + +Author: Hartmut Knaack + +Description +----------- + +The ADT7310/ADT7410 is a temperature sensor with rated temperature range of +-55°C to +150°C. It has a high accuracy of +/-0.5°C and can be operated at a +resolution of 13 bits (0.0625°C) or 16 bits (0.0078°C). The sensor provides an +INT pin to indicate that a minimum or maximum temperature set point has been +exceeded, as well as a critical temperature (CT) pin to indicate that the +critical temperature set point has been exceeded. Both pins can be set up with a +common hysteresis of 0°C - 15°C and a fault queue, ranging from 1 to 4 events. +Both pins can individually set to be active-low or active-high, while the whole +device can either run in comparator mode or interrupt mode. The ADT7410 supports +continuous temperature sampling, as well as sampling one temperature value per +second or even just get one sample on demand for power saving. Besides, it can +completely power down its ADC, if power management is required. + +The ADT7320/ADT7420 is register compatible, the only differences being the +package, a slightly narrower operating temperature range (-40°C to +150°C), and +a better accuracy (0.25°C instead of 0.50°C.) + +The difference between the ADT7310/ADT7320 and ADT7410/ADT7420 is the control +interface, the ADT7310 and ADT7320 use SPI while the ADT7410 and ADT7420 use +I2C. + +Configuration Notes +------------------- + +Since the device uses one hysteresis value, which is an offset to minimum, +maximum and critical temperature, it can only be set for temp#_max_hyst. +However, temp#_min_hyst and temp#_crit_hyst show their corresponding +hysteresis. +The device is set to 16 bit resolution and comparator mode. + +sysfs-Interface +--------------- + +======================== ==================================================== +temp#_input temperature input +temp#_min temperature minimum setpoint +temp#_max temperature maximum setpoint +temp#_crit critical temperature setpoint +temp#_min_hyst hysteresis for temperature minimum (read-only) +temp#_max_hyst hysteresis for temperature maximum (read/write) +temp#_crit_hyst hysteresis for critical temperature (read-only) +temp#_min_alarm temperature minimum alarm flag +temp#_max_alarm temperature maximum alarm flag +temp#_crit_alarm critical temperature alarm flag +======================== ==================================================== -- cgit v1.2.3