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	Commit message (Collapse)	Author	Age	Files	Lines
*	iio: envelope-detector: ADC driver based on a DAC and a comparator	Peter Rosin	2016-11-13	1	-0/+36
	The DAC is used to find the peak level of an alternating voltage input signal by a binary search using the output of a comparator wired to an interrupt pin. Like so: _ \| \ input +------>-------\|+ \ \| \ .-------. \| }---. \| \| \| / \| \| dac\|-->--\|- / \| \| \| \|_/ \| \| \| \| \| \| \| \| irq\|------<-------' \| \| '-------' Signed-off-by: Peter Rosin <peda@axentia.se> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>