From de65d0556343132222a9f48417c2bad82e3a7503 Mon Sep 17 00:00:00 2001 From: William Breathitt Gray Date: Sat, 22 Feb 2020 11:49:58 -0500 Subject: counter: 104-quad-8: Support Filter Clock Prescaler The ACCES 104-QUAD-8 series does active filtering on the quadrature input signals via the PC/104 bus clock (OSC 14.318 MHz). This patch exposes the filter clock prescaler available on each channel. Signed-off-by: William Breathitt Gray Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 b/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 index 46b1f33b2fce..3c905d3cf5d7 100644 --- a/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 +++ b/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 @@ -1,3 +1,10 @@ +What: /sys/bus/counter/devices/counterX/signalY/filter_clock_prescaler +KernelVersion: 5.7 +Contact: linux-iio@vger.kernel.org +Description: + Filter clock factor for input Signal Y. This prescaler value + affects the inputs of both quadrature pair signals. + What: /sys/bus/counter/devices/counterX/signalY/index_polarity KernelVersion: 5.2 Contact: linux-iio@vger.kernel.org -- cgit v1.2.3