diff options
Diffstat (limited to 'Documentation/w1')
| -rw-r--r-- | Documentation/w1/slaves/w1_therm.rst | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/Documentation/w1/slaves/w1_therm.rst b/Documentation/w1/slaves/w1_therm.rst index f1148181f53e..00376501a5ef 100644 --- a/Documentation/w1/slaves/w1_therm.rst +++ b/Documentation/w1/slaves/w1_therm.rst @@ -6,6 +6,7 @@ Supported chips: * Maxim ds18*20 based temperature sensors. * Maxim ds1825 based temperature sensors. + * GXCAS GC20MH01 temperature sensor. Author: Evgeniy Polyakov <johnpol@2ka.mipt.ru> @@ -13,8 +14,8 @@ Author: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Description ----------- -w1_therm provides basic temperature conversion for ds18*20 devices, and the -ds28ea00 device. +w1_therm provides basic temperature conversion for ds18*20, ds28ea00, GX20MH01 +devices. Supported family codes: @@ -130,4 +131,12 @@ conversion and temperature reads 85.00 (powerup value) or 127.94 (insufficient power), the driver returns a conversion error. Bit mask ``2`` enables poll for conversion completion (normal power only) by generating read cycles on the bus after conversion starts. In parasite power mode this feature is not available. -Feature bit masks may be combined (OR). +Feature bit masks may be combined (OR). See accompanying sysfs documentation: +:ref:`Documentation/w1/slaves/w1_therm.rst <w1_therm>` + +GX20MH01 device shares family number 0x28 with DS18*20. The device is generally +compatible with DS18B20. Added are lowest 2^-5, 2^-6 temperature 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``. |