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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/hwmon/adt7410.rst | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/hwmon/adt7410.rst | 94 |
1 files changed, 94 insertions, 0 deletions
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 <knaack.h@gmx.de> + +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 +======================== ==================================================== |