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This patch registers a new IIO software trigger interrupt source based on high resolution timers. Notice that if configfs is enabled we create sampling_frequency attribute allowing users to change hrtimer period (1/sampling_frequency). The IIO hrtimer trigger has a long history, this patch is based on an older version from Marten and Lars-Peter. Signed-off-by: Marten Svanfeldt <marten@intuitiveaerial.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
39 lines
1.0 KiB
Plaintext
39 lines
1.0 KiB
Plaintext
#
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# Industrial I/O standalone triggers
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#
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# When adding new entries keep the list in alphabetical order
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menu "Triggers - standalone"
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config IIO_HRTIMER_TRIGGER
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tristate "High resolution timer trigger"
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depends on IIO_SW_TRIGGER
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help
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Provides a frequency based IIO trigger using high resolution
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timers as interrupt source.
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To compile this driver as a module, choose M here: the
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module will be called iio-trig-hrtimer.
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config IIO_INTERRUPT_TRIGGER
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tristate "Generic interrupt trigger"
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help
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Provides support for using an interrupt of any type as an IIO
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trigger. This may be provided by a gpio driver for example.
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To compile this driver as a module, choose M here: the
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module will be called iio-trig-interrupt.
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config IIO_SYSFS_TRIGGER
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tristate "SYSFS trigger"
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depends on SYSFS
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select IRQ_WORK
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help
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Provides support for using SYSFS entries as IIO triggers.
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If unsure, say N (but it's safe to say "Y").
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To compile this driver as a module, choose M here: the
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module will be called iio-trig-sysfs.
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endmenu
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