iio: Add tcs3472 color light sensor driver

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chip has four 16-bit channels for red, green, blue, clear color
intensity; driver supports the TCS3x7x family of devices and was
tested with a TCS34725 chip; further information here:
http://www.ams.com/eng/Products/Light-Sensors/Color-Sensor/TCS34725

v2 (thanks to Jonathan Cameron):
* drop dynamic buffer allocation, buffer is in tcs3472_data
* limit sysfs output to PAGE_SIZE
* check val2 == 0 when writing CALIBSCALE

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Jon Brenner <jon.brenner@ams.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

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Peter Meerwald 2013-09-14 20:38:00 +01:00 • committed by Jonathan Cameron

parent ea01f2c18a

commit eb869ade30

3 changed files with 380 additions and 0 deletions

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10

drivers/iio/light/Kconfig

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1

drivers/iio/light/Makefile

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369

drivers/iio/light/tcs3472.c

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