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| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-04-17 06:46:29 -0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-17 10:37:23 -0700 |
| commit | 7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 (patch) | |
| tree | 9db30159bd32bec125c7d49e80a79bb7c4da0c8e /Documentation/hwmon/sht21 | |
| parent | b04f2f7d387b3160883c2a1f5e2285483a791e82 (diff) | |
| download | linux-7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7.tar.bz2 | |
docs: hwmon: Add an index file and rename docs to *.rst
Now that all files were converted to ReST format, rename them
and add an index.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon/sht21')
| -rw-r--r-- | Documentation/hwmon/sht21 | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/Documentation/hwmon/sht21 b/Documentation/hwmon/sht21 deleted file mode 100644 index f1f5da030108..000000000000 --- a/Documentation/hwmon/sht21 +++ /dev/null @@ -1,68 +0,0 @@ -Kernel driver sht21 -=================== - -Supported chips: - - * Sensirion SHT21 - - Prefix: 'sht21' - - Addresses scanned: none - - Datasheet: Publicly available at the Sensirion website - - http://www.sensirion.com/file/datasheet_sht21 - - - - * Sensirion SHT25 - - Prefix: 'sht25' - - Addresses scanned: none - - Datasheet: Publicly available at the Sensirion website - - http://www.sensirion.com/file/datasheet_sht25 - - - -Author: - - Urs Fleisch <urs.fleisch@sensirion.com> - -Description ------------ - -The SHT21 and SHT25 are humidity and temperature sensors in a DFN package of -only 3 x 3 mm footprint and 1.1 mm height. The difference between the two -devices is the higher level of precision of the SHT25 (1.8% relative humidity, -0.2 degree Celsius) compared with the SHT21 (2.0% relative humidity, -0.3 degree Celsius). - -The devices communicate with the I2C protocol. All sensors are set to the same -I2C address 0x40, so an entry with I2C_BOARD_INFO("sht21", 0x40) can be used -in the board setup code. - -sysfs-Interface ---------------- - -temp1_input - - temperature input - -humidity1_input - - humidity input -eic - - Electronic Identification Code - -Notes ------ - -The driver uses the default resolution settings of 12 bit for humidity and 14 -bit for temperature, which results in typical measurement times of 22 ms for -humidity and 66 ms for temperature. To keep self heating below 0.1 degree -Celsius, the device should not be active for more than 10% of the time, -e.g. maximum two measurements per second at the given resolution. - -Different resolutions, the on-chip heater, and using the CRC checksum -are not supported yet. |