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ROHM BU27034 is an ambient light sensor with 3 channels and 3 photo diodes capable of detecting a very wide range of illuminance. Typical application is adjusting LCD and backlight power of TVs and mobile phones. Add initial support for the ROHM BU27034 ambient light sensor. NOTE: - Driver exposes 4 channels. One IIO_LIGHT channel providing the calculated lux values based on measured data from diodes #0 and #1. In addition, 3 IIO_INTENSITY channels are emitting the raw register data from all diodes for more intense user-space computations. - Sensor has GAIN values that can be adjusted from 1x to 4096x. - Sensor has adjustible measurement times of 5, 55, 100, 200 and 400 mS. Driver does not support 5 mS which has special limitations. - Driver exposes standard 'scale' adjustment which is implemented by: 1) Trying to adjust only the GAIN 2) If GAIN adjustment alone can't provide requested scale, adjusting both the time and the gain is attempted. - Driver exposes writable INT_TIME property that can be used for adjusting the measurement time. Time adjustment will also cause the driver to try to adjust the GAIN so that the overall scale is kept as close to the original as possible. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/2a7efb6f335da5526fbe34b95137c5e45db5c5d3.1680263956.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> |
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| accel | ||
| adc | ||
| addac | ||
| afe | ||
| amplifiers | ||
| buffer | ||
| cdc | ||
| chemical | ||
| common | ||
| dac | ||
| dummy | ||
| filter | ||
| frequency | ||
| gyro | ||
| health | ||
| humidity | ||
| imu | ||
| light | ||
| magnetometer | ||
| multiplexer | ||
| orientation | ||
| position | ||
| potentiometer | ||
| potentiostat | ||
| pressure | ||
| proximity | ||
| resolver | ||
| temperature | ||
| test | ||
| trigger | ||
| iio_core_trigger.h | ||
| iio_core.h | ||
| industrialio-buffer.c | ||
| industrialio-configfs.c | ||
| industrialio-core.c | ||
| industrialio-event.c | ||
| industrialio-gts-helper.c | ||
| industrialio-sw-device.c | ||
| industrialio-sw-trigger.c | ||
| industrialio-trigger.c | ||
| industrialio-triggered-event.c | ||
| inkern.c | ||
| Kconfig | ||
| Makefile | ||
| TODO | ||