w1/slaves/w1_therm.rst

9   * GXCAS GX20MH01 temperature sensor.
16 -----------
49 -1 if at least one sensor still in conversion, 1 if conversion is complete
50 but at least one sensor value has not been read yet. Result temperature is
53 read is sent but one sensor is not read immediately, the next access to
67 completion. Options 2, 3 can't be used in parasite power mode. To get back to
71 precision of the sensor for the next readings. Allowed resolutions are defined by
72 the sensor. Resolution is reset when the sensor gets power-cycled.
79 ``resolution`` entry on each device, if supported by the sensor.
81 Some non-genuine DS18B20 chips are fixed in 12-bit mode only, so the actual
86 The write-only sysfs entry ``eeprom_cmd`` is an alternative for EEPROM operations.
90 ``ext_power`` entry allows checking the power state of each device. Reads
94 Values shall be space separated and in the device range (typical -55 degC
101 In case of autodetection, the driver will use the "READ POWER SUPPLY"
106 be force-enabled.
111 resistor).  The DS18b20 temperature sensor specification lists a
118 location of the chip in the 1-wire bus without needing pre-existing
124 Insufficient power in parasite mode, line noise and insufficient conversion
129 power), the driver returns a conversion error. Bit mask ``2`` enables poll for
130 conversion completion (normal power only) by generating read cycles on the bus
131 after conversion starts. In parasite power mode this feature is not available.
133 Documentation/ABI/testing/sysfs-driver-w1_therm
136 compatible with DS18B20. Added are lowest 2\ :sup:`-5`, 2\ :sup:`-6` temperature
138 resolutions. The device is powered up in 14-bit resolution mode. The conversion
144 indicating 15, but the device is always operating in 14-bit resolution mode.