You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.4 KiB
43 lines
1.4 KiB
Kernel driver shtc1 |
|
=================== |
|
|
|
Supported chips: |
|
* Sensirion SHTC1 |
|
Prefix: 'shtc1' |
|
Addresses scanned: none |
|
Datasheet: http://www.sensirion.com/file/datasheet_shtc1 |
|
|
|
* Sensirion SHTW1 |
|
Prefix: 'shtw1' |
|
Addresses scanned: none |
|
Datasheet: Not publicly available |
|
|
|
Author: |
|
Johannes Winkelmann <johannes.winkelmann@sensirion.com> |
|
|
|
Description |
|
----------- |
|
|
|
This driver implements support for the Sensirion SHTC1 chip, a humidity and |
|
temperature sensor. Temperature is measured in degrees celsius, relative |
|
humidity is expressed as a percentage. Driver can be used as well for SHTW1 |
|
chip, which has the same electrical interface. |
|
|
|
The device communicates with the I2C protocol. All sensors are set to I2C |
|
address 0x70. See Documentation/i2c/instantiating-devices for methods to |
|
instantiate the device. |
|
|
|
There are two options configurable by means of shtc1_platform_data: |
|
1. blocking (pull the I2C clock line down while performing the measurement) or |
|
non-blocking mode. Blocking mode will guarantee the fastest result but |
|
the I2C bus will be busy during that time. By default, non-blocking mode |
|
is used. Make sure clock-stretching works properly on your device if you |
|
want to use blocking mode. |
|
2. high or low accuracy. High accuracy is used by default and using it is |
|
strongly recommended. |
|
|
|
sysfs-Interface |
|
--------------- |
|
|
|
temp1_input - temperature input |
|
humidity1_input - humidity input
|
|
|