| 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 |
