Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / ABI / testing / sysfs-class-pwm

diff --git a/kernel/Documentation/ABI/testing/sysfs-class-pwm b/kernel/Documentation/ABI/testing/sysfs-class-pwm
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+What:          /sys/class/pwm/
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               The pwm/ class sub-directory belongs to the Generic PWM
+               Framework and provides a sysfs interface for using PWM
+               channels.
+
+What:          /sys/class/pwm/pwmchipN/
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               A /sys/class/pwm/pwmchipN directory is created for each
+               probed PWM controller/chip where N is the base of the
+               PWM chip.
+
+What:          /sys/class/pwm/pwmchipN/npwm
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               The number of PWM channels supported by the PWM chip.
+
+What:          /sys/class/pwm/pwmchipN/export
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               Exports a PWM channel from the PWM chip for sysfs control.
+               Value is between 0 and /sys/class/pwm/pwmchipN/npwm - 1.
+
+What:          /sys/class/pwm/pwmchipN/unexport
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               Unexports a PWM channel.
+
+What:          /sys/class/pwm/pwmchipN/pwmX
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               A /sys/class/pwm/pwmchipN/pwmX directory is created for
+               each exported PWM channel where X is the exported PWM
+               channel number.
+
+What:          /sys/class/pwm/pwmchipN/pwmX/period
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               Sets the PWM signal period in nanoseconds.
+
+What:          /sys/class/pwm/pwmchipN/pwmX/duty_cycle
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               Sets the PWM signal duty cycle in nanoseconds.
+
+What:          /sys/class/pwm/pwmchipN/pwmX/polarity
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               Sets the output polarity of the PWM signal to "normal" or
+               "inversed".
+
+What:          /sys/class/pwm/pwmchipN/pwmX/enable
+Date:          May 2013
+KernelVersion: 3.11
+Contact:       H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+               Enable/disable the PWM signal.
+               0 is disabled
+               1 is enabled