UPSTREAM: pwm: sysfs: Add PWM capture support

[firefly-linux-kernel-4.4.55.git] / Documentation / ABI / testing / sysfs-class-pwm

diff --git a/Documentation/ABI/testing/sysfs-class-pwm b/Documentation/ABI/testing/sysfs-class-pwm
index c479d77b67c540ab6c643942d992d37d9043d1c8..c20e61354561db0b1023a4a15b4499de06958029 100644 (file)
--- a/Documentation/ABI/testing/sysfs-class-pwm
+++ b/Documentation/ABI/testing/sysfs-class-pwm
@@ -77,3 +77,12 @@ Description:
                Enable/disable the PWM signal.
                0 is disabled
                1 is enabled
+
+What:          /sys/class/pwm/pwmchipN/pwmX/capture
+Date:          June 2016
+KernelVersion: 4.8
+Contact:       Lee Jones <lee.jones@linaro.org>
+Description:
+               Capture information about a PWM signal. The output format is a
+               pair unsigned integers (period and duty cycle), separated by a
+               single space.