• David Barksdale's avatar
    IIO: add si7020 driver · 064a7463
    David Barksdale authored
    This patch adds support to the Industrial IO subsystem
    for the Silicon Labs Si7013/20/21 Relative Humidity and
    Temperature Sensors.
    
    Website: http://www.silabs.com/products/sensors/humidity-sensors/Pages/si7013-20-21.aspx
    
    These are i2c devices which measure relative humidity
    and temperature and all use the same protocol. The
    Si7013 has an additional input with programmable
    linearization which is not supported because that's
    complicated and I didn't need it.
    Signed-off-by: default avatarDavid Barksdale <dbarksdale@uplogix.com>
    
    --
    Changes since v1:
    * Renamed to si7020 and replaced Si701x/2x with Si7013/20/21.
    * Removed unneeded mutex.
    * Pre-computed floating-point constant expressions.
    * Removed address_list and I2C_CLASS_HWMON.
    
    Changes since v2:
    * Return correct raw sensor values.
    * Rename dev variable to indio_dev.
    * Issue a software reset command during probe.
    * Un-broke string literal.
    
    Changes since v3:
    * enum changed to #define
    Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
    064a7463
Kconfig 955 Bytes
#
# humidity sensor drivers
#
menu "Humidity sensors"

config DHT11
	tristate "DHT11 (and compatible sensors) driver"
	depends on GPIOLIB
	help
	  This driver supports reading data via a single interrupt
	  generating GPIO line. Currently tested are DHT11 and DHT22.
	  Other sensors should work as well as long as they speak the
	  same protocol.

config SI7005
	tristate "SI7005 relative humidity and temperature sensor"
	depends on I2C
	help
	  Say yes here to build support for the Silabs Si7005 relative
	  humidity and temperature sensor.

	  To compile this driver as a module, choose M here: the module
	  will be called si7005.

config SI7020
	tristate "Si7013/20/21 Relative Humidity and Temperature Sensors"
	depends on I2C
	help
	  Say yes here to build support for the Silicon Labs Si7013/20/21
	  Relative Humidity and Temperature Sensors.

	  To compile this driver as a module, choose M here: the module
	  will be called si7020.

endmenu