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| author | Markus Reichl <m.reichl@fivetechno.de> | 2022-03-21 13:04:11 +0100 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2022-04-05 18:19:42 +0200 |
| commit | 7808c934120e6ffa95c0b11d3e079cb617f195fc (patch) | |
| tree | 9f1903e5bd51407ba24ed71c2640257aa6c36298 /Documentation/w1 | |
| parent | Documentation/process: Update ARM contact for embargoed hardware issues (diff) | |
| download | linux-7808c934120e6ffa95c0b11d3e079cb617f195fc.tar.xz linux-7808c934120e6ffa95c0b11d3e079cb617f195fc.zip | |
w1: w1_therm: Document Maxim MAX31850 thermoelement IF.
w1_therm driver supports now MAX31850, too. Add it to documentation
and fix a small typo.
Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/w1')
| -rw-r--r-- | Documentation/w1/slaves/w1_therm.rst | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/w1/slaves/w1_therm.rst b/Documentation/w1/slaves/w1_therm.rst index c3c9ed7a356c..758dadba84f6 100644 --- a/Documentation/w1/slaves/w1_therm.rst +++ b/Documentation/w1/slaves/w1_therm.rst @@ -6,7 +6,8 @@ Supported chips: * Maxim ds18*20 based temperature sensors. * Maxim ds1825 based temperature sensors. - * GXCAS GC20MH01 temperature sensor. + * GXCAS GX20MH01 temperature sensor. + * Maxim MAX31850 thermoelement interface. Author: Evgeniy Polyakov <johnpol@2ka.mipt.ru> @@ -15,7 +16,7 @@ Description ----------- w1_therm provides basic temperature conversion for ds18*20, ds28ea00, GX20MH01 -devices. +and MAX31850 devices. Supported family codes: @@ -137,3 +138,7 @@ bits in Config register; R2 bit in Config register enabling 13 and 14 bit resolutions. The device is powered up in 14-bit resolution mode. The conversion times specified in the datasheet are too low and have to be increased. The device supports driver features ``1`` and ``2``. + +MAX31850 device shares family number 0x3B with DS1825. The device is generally +compatible with DS1825. The higher 4 bits of Config register read all 1, +indicating 15, but the device is always operating in 14-bit resolution mode. |