72aa29ce0a
Add Holt threshold detector driver for HI-8435 chip Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
44 lines
1.9 KiB
Plaintext
44 lines
1.9 KiB
Plaintext
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sensing_mode
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Date: August 2015
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KernelVersion: 4.2.0
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Contact: source@cogentembedded.com
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Description:
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Program sensor type for threshold detector inputs.
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Could be either "GND-Open" or "Supply-Open" mode. Y is a
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threshold detector input channel. Channels 0..7, 8..15, 16..23
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and 24..31 has common sensor types.
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What: /sys/bus/iio/devices/iio:deviceX/events/in_voltageY_thresh_falling_value
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Date: August 2015
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KernelVersion: 4.2.0
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Contact: source@cogentembedded.com
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Description:
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Channel Y low voltage threshold. If sensor input voltage goes lower then
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this value then the threshold falling event is pushed.
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Depending on in_voltageY_sensing_mode the low voltage threshold
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is separately set for "GND-Open" and "Supply-Open" modes.
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Channels 0..31 have common low threshold values, but could have different
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sensing_modes.
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The low voltage threshold range is between 2..21V.
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Hysteresis between low and high thresholds can not be lower then 2 and
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can not be odd.
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If falling threshold results hysteresis to odd value then rising
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threshold is automatically subtracted by one.
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What: /sys/bus/iio/devices/iio:deviceX/events/in_voltageY_thresh_rising_value
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Date: August 2015
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KernelVersion: 4.2.0
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Contact: source@cogentembedded.com
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Description:
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Channel Y high voltage threshold. If sensor input voltage goes higher then
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this value then the threshold rising event is pushed.
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Depending on in_voltageY_sensing_mode the high voltage threshold
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is separately set for "GND-Open" and "Supply-Open" modes.
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Channels 0..31 have common high threshold values, but could have different
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sensing_modes.
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The high voltage threshold range is between 3..22V.
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Hysteresis between low and high thresholds can not be lower then 2 and
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can not be odd.
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If rising threshold results hysteresis to odd value then falling
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threshold is automatically appended by one.
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