From 7808c934120e6ffa95c0b11d3e079cb617f195fc Mon Sep 17 00:00:00 2001 From: Markus Reichl Date: Mon, 21 Mar 2022 13:04:11 +0100 Subject: 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 Signed-off-by: Jonathan Corbet --- Documentation/w1/slaves/w1_therm.rst | 9 +++++++-- 1 file 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 @@ -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. -- cgit v1.2.3-59-g8ed1b