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