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9c8ea1b29b
Add sub-driver for the ambient-light-sensor interface on National Semiconductor / TI LM3533 lighting power chips. The sensor interface can be used to control the LEDs and backlights of the chip through defining five light zones and three sets of corresponding output-current values. The driver provides raw and mean adc readings along with the current light zone through sysfs. A threshold event can be generated on zone changes. The ALS-control output values can be set per zone for the three current output channels. Signed-off-by: Johan Hovold <jhovold@gmail.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
55 lines
1.5 KiB
Text
55 lines
1.5 KiB
Text
#
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# Industrial I/O subsytem configuration
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#
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menuconfig IIO
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tristate "Industrial I/O support"
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depends on GENERIC_HARDIRQS
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help
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The industrial I/O subsystem provides a unified framework for
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drivers for many different types of embedded sensors using a
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number of different physical interfaces (i2c, spi, etc). See
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Documentation/iio for more information.
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if IIO
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config IIO_BUFFER
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bool "Enable buffer support within IIO"
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help
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Provide core support for various buffer based data
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acquisition methods.
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if IIO_BUFFER
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config IIO_KFIFO_BUF
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select IIO_TRIGGER
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tristate "Industrial I/O buffering based on kfifo"
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help
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A simple fifo based on kfifo. Use this if you want a fifo
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rather than a ring buffer. Note that this currently provides
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no buffer events so it is up to userspace to work out how
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often to read from the buffer.
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endif # IIO_BUFFER
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config IIO_TRIGGER
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boolean "Enable triggered sampling support"
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help
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Provides IIO core support for triggers. Currently these
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are used to initialize capture of samples to push into
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ring buffers. The triggers are effectively a 'capture
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data now' interrupt.
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config IIO_CONSUMERS_PER_TRIGGER
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int "Maximum number of consumers per trigger"
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depends on IIO_TRIGGER
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default "2"
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help
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This value controls the maximum number of consumers that a
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given trigger may handle. Default is 2.
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source "drivers/iio/adc/Kconfig"
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source "drivers/iio/amplifiers/Kconfig"
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source "drivers/iio/light/Kconfig"
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endif # IIO
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