Merge branch 'linus' into timers/urgent (f2006e27) · Commits · EulixOS / Software / Kernel

Documentation/ABI/stable/sysfs-module

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		@@ -4,9 +4,13 @@ Description:

		/sys/module/MODULENAME
		The name of the module that is in the kernel. This
		module name will show up either if the module is built
		directly into the kernel, or if it is loaded as a
		dynamic module.
		module name will always show up if the module is loaded as a
		dynamic module. If it is built directly into the kernel, it
		will only show up if it has a version or at least one
		parameter.

		Note: The conditions of creation in the built-in case are not
		by design and may be removed in the future.

		/sys/module/MODULENAME/parameters
		This directory contains individual files that are each

Documentation/ABI/testing/sysfs-bus-acpi

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		What: /sys/bus/acpi/devices/.../path
		Date: December 2006
		Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
		Description:
		This attribute indicates the full path of ACPI namespace
		object associated with the device object. For example,
		\_SB_.PCI0.
		This file is not present for device objects representing
		fixed ACPI hardware features (like power and sleep
		buttons).

		What: /sys/bus/acpi/devices/.../modalias
		Date: July 2007
		Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
		Description:
		This attribute indicates the PNP IDs of the device object.
		That is acpi:HHHHHHHH:[CCCCCCC:]. Where each HHHHHHHH or
		CCCCCCCC contains device object's PNPID (_HID or _CID).

		What: /sys/bus/acpi/devices/.../hid
		Date: April 2005
		Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
		Description:
		This attribute indicates the hardware ID (_HID) of the
		device object. For example, PNP0103.
		This file is present for device objects having the _HID
		control method.

		What: /sys/bus/acpi/devices/.../description
		Date: October 2012
		Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
		Description:
		This attribute contains the output of the device object's
		_STR control method, if present.

		What: /sys/bus/acpi/devices/.../adr
		Date: October 2012
		Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
		Description:
		This attribute contains the output of the device object's
		_ADR control method, which is present for ACPI device
		objects representing devices having standard enumeration
		algorithms, such as PCI.

		What: /sys/bus/acpi/devices/.../uid
		Date: October 2012
		Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
		Description:
		This attribute contains the output of the device object's
		_UID control method, if present.

		What: /sys/bus/acpi/devices/.../eject
		Date: December 2006
		Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
		Description:
		Writing 1 to this attribute will trigger hot removal of
		this device object. This file exists for every device
		object that has _EJ0 method.

Documentation/ABI/testing/sysfs-class-devfreq

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		@@ -78,3 +78,23 @@ Contact: Nishanth Menon <nm@ti.com>
		Description:
		The /sys/class/devfreq/.../available_governors shows
		currently available governors in the system.

		What: /sys/class/devfreq/.../min_freq
		Date: January 2013
		Contact: MyungJoo Ham <myungjoo.ham@samsung.com>
		Description:
		The /sys/class/devfreq/.../min_freq shows and stores
		the minimum frequency requested by users. It is 0 if
		the user does not care. min_freq overrides the
		frequency requested by governors.

		What: /sys/class/devfreq/.../max_freq
		Date: January 2013
		Contact: MyungJoo Ham <myungjoo.ham@samsung.com>
		Description:
		The /sys/class/devfreq/.../max_freq shows and stores
		the maximum frequency requested by users. It is 0 if
		the user does not care. max_freq overrides the
		frequency requested by governors and min_freq.
		The max_freq overrides min_freq because max_freq may be
		used to throttle devices to avoid overheating.

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

Documentation/ABI/testing/sysfs-devices-online

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		What: /sys/devices/.../online
		Date: April 2013
		Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
		Description:
		The /sys/devices/.../online attribute is only present for
		devices whose bus types provide .online() and .offline()
		callbacks. The number read from it (0 or 1) reflects the value
		of the device's 'offline' field. If that number is 1 and '0'
		(or 'n', or 'N') is written to this file, the device bus type's
		.offline() callback is executed for the device and (if
		successful) its 'offline' field is updated accordingly. In
		turn, if that number is 0 and '1' (or 'y', or 'Y') is written to
		this file, the device bus type's .online() callback is executed
		for the device and (if successful) its 'offline' field is
		updated as appropriate.

		After a successful execution of the bus type's .offline()
		callback the device cannot be used for any purpose until either
		it is removed (i.e. device_del() is called for it), or its bus
		type's .online() is exeucted successfully.