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‎CREDITS

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@@ -3054,6 +3054,7 @@ D: PLX USB338x driver
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D: PCA9634 driver
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D: Option GTM671WFS
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D: Fintek F81216A
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D: AD5761 iio driver
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D: Various kernel hacks
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S: Qtechnology A/S
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S: Valby Langgade 142

‎Documentation/ABI/obsolete/sysfs-class-rfkill

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This file was deleted.

‎Documentation/ABI/testing/sysfs-gpio renamed to ‎Documentation/ABI/obsolete/sysfs-gpio

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What: /sys/class/gpio/
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Date: July 2008
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KernelVersion: 2.6.27
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Contact: David Brownell <dbrownell@users.sourceforge.net>
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Contact: Linus Walleij <linusw@kernel.org>
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Description:
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As a Kconfig option, individual GPIO signals may be accessed from
@@ -26,3 +26,5 @@ Description:
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/label ... (r/o) descriptive, not necessarily unique
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/ngpio ... (r/o) number of GPIOs; numbered N to N + (ngpio - 1)
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This ABI is deprecated and will be removed after 2020. It is
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replaced with the GPIO character device.

‎Documentation/ABI/removed/sysfs-class-rfkill

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rfkill - radio frequency (RF) connector kill switch support
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For details to this subsystem look at Documentation/rfkill.txt.
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What: /sys/class/rfkill/rfkill[0-9]+/claim
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Date: 09-Jul-2007
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KernelVersion v2.6.22
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Contact: linux-wireless@vger.kernel.org
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Description: This file was deprecated because there no longer was a way to
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claim just control over a single rfkill instance.
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This file was scheduled to be removed in 2012, and was removed
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in 2016.
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Values: 0: Kernel handles events

‎Documentation/ABI/stable/sysfs-bus-vmbus

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@@ -27,3 +27,17 @@ Description: The mapping of which primary/sub channels are bound to which
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Virtual Processors.
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Format: <channel's child_relid:the bound cpu's number>
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Users: tools/hv/lsvmbus
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What: /sys/bus/vmbus/devices/vmbus_*/device
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Date: Dec. 2015
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KernelVersion: 4.5
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Contact: K. Y. Srinivasan <kys@microsoft.com>
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Description: The 16 bit device ID of the device
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Users: tools/hv/lsvmbus and user level RDMA libraries
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What: /sys/bus/vmbus/devices/vmbus_*/vendor
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Date: Dec. 2015
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KernelVersion: 4.5
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Contact: K. Y. Srinivasan <kys@microsoft.com>
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Description: The 16 bit vendor ID of the device
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Users: tools/hv/lsvmbus and user level RDMA libraries

‎Documentation/ABI/stable/sysfs-class-rfkill

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@@ -2,9 +2,8 @@ rfkill - radio frequency (RF) connector kill switch support
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For details to this subsystem look at Documentation/rfkill.txt.
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For the deprecated /sys/class/rfkill/*/state and
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/sys/class/rfkill/*/claim knobs of this interface look in
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Documentation/ABI/obsolete/sysfs-class-rfkill.
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For the deprecated /sys/class/rfkill/*/claim knobs of this interface look in
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Documentation/ABI/removed/sysfs-class-rfkill.
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What: /sys/class/rfkill
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Date: 09-Jul-2007
@@ -42,6 +41,28 @@ Values: A numeric value.
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1: true
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What: /sys/class/rfkill/rfkill[0-9]+/state
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Date: 09-Jul-2007
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KernelVersion v2.6.22
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Contact: linux-wireless@vger.kernel.org
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Description: Current state of the transmitter.
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This file was scheduled to be removed in 2014, but due to its
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large number of users it will be sticking around for a bit
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longer. Despite it being marked as stabe, the newer "hard" and
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"soft" interfaces should be preffered, since it is not possible
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to express the 'soft and hard block' state of the rfkill driver
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through this interface. There will likely be another attempt to
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remove it in the future.
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Values: A numeric value.
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0: RFKILL_STATE_SOFT_BLOCKED
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transmitter is turned off by software
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1: RFKILL_STATE_UNBLOCKED
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transmitter is (potentially) active
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2: RFKILL_STATE_HARD_BLOCKED
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transmitter is forced off by something outside of
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the driver's control.
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What: /sys/class/rfkill/rfkill[0-9]+/hard
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Date: 12-March-2010
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KernelVersion v2.6.34

‎Documentation/ABI/testing/gpio-cdev

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What: /dev/gpiochip[0-9]+
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Date: November 2015
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KernelVersion: 4.4
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Contact: linux-gpio@vger.kernel.org
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Description:
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The character device files /dev/gpiochip* are the interface
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between GPIO chips and userspace.
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The ioctl(2)-based ABI is defined and documented in
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[include/uapi]<linux/gpio.h>.
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The following file operations are supported:
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open(2)
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Currently the only useful flags are O_RDWR.
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ioctl(2)
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Initiate various actions.
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See the inline documentation in [include/uapi]<linux/gpio.h>
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for descriptions of all ioctls.
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close(2)
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Stops and free up the I/O contexts that was associated
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with the file descriptor.
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Users: TBD

‎Documentation/ABI/testing/ima_policy

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base: func:= [BPRM_CHECK][MMAP_CHECK][FILE_CHECK][MODULE_CHECK]
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[FIRMWARE_CHECK]
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[KEXEC_KERNEL_CHECK] [KEXEC_INITRAMFS_CHECK]
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mask:= [[^]MAY_READ] [[^]MAY_WRITE] [[^]MAY_APPEND]
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[[^]MAY_EXEC]
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fsmagic:= hex value

‎Documentation/ABI/testing/sysfs-bus-iio

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1kohm_to_gnd: connected to ground via an 1kOhm resistor,
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6kohm_to_gnd: connected to ground via a 6kOhm resistor,
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20kohm_to_gnd: connected to ground via a 20kOhm resistor,
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90kohm_to_gnd: connected to ground via a 90kOhm resistor,
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100kohm_to_gnd: connected to ground via an 100kOhm resistor,
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125kohm_to_gnd: connected to ground via an 125kOhm resistor,
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500kohm_to_gnd: connected to ground via a 500kOhm resistor,
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640kohm_to_gnd: connected to ground via a 640kOhm resistor,
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three_state: left floating.
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For a list of available output power down options read
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outX_powerdown_mode_available. If Y is not present the
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This ABI is especially applicable for humidity sensors
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to heatup the device and get rid of any condensation
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in some humidity environment
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What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw
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KernelVersion: 4.5
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Contact: linux-iio@vger.kernel.org
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Description:
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Raw (unscaled no offset etc.) pH reading of a substance as a negative
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base-10 logarithm of hydrodium ions in a litre of water.

‎Documentation/ABI/testing/sysfs-bus-iio-health-afe440x

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What: /sys/bus/iio/devices/iio:deviceX/tia_resistanceY
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/sys/bus/iio/devices/iio:deviceX/tia_capacitanceY
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Date: December 2015
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KernelVersion:
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Contact: Andrew F. Davis <afd@ti.com>
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Description:
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Get and set the resistance and the capacitance settings for the
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Transimpedance Amplifier. Y is 1 for Rf1 and Cf1, Y is 2 for
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Rf2 and Cf2 values.
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What: /sys/bus/iio/devices/iio:deviceX/tia_separate_en
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Date: December 2015
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KernelVersion:
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Contact: Andrew F. Davis <afd@ti.com>
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Description:
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Enable or disable separate settings for the TransImpedance
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Amplifier above, when disabled both values are set by the
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first channel.
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What: /sys/bus/iio/devices/iio:deviceX/in_intensity_ledY_raw
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/sys/bus/iio/devices/iio:deviceX/in_intensity_ledY_ambient_raw
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Date: December 2015
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KernelVersion:
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Contact: Andrew F. Davis <afd@ti.com>
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Description:
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Get measured values from the ADC for these stages. Y is the
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specific LED number. The values are expressed in 24-bit twos
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complement.
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What: /sys/bus/iio/devices/iio:deviceX/in_intensity_ledY-ledY_ambient_raw
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Date: December 2015
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KernelVersion:
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Contact: Andrew F. Davis <afd@ti.com>
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Description:
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Get differential values from the ADC for these stages. Y is the
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specific LED number. The values are expressed in 24-bit twos
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complement for the specified LEDs.
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What: /sys/bus/iio/devices/iio:deviceX/out_current_ledY_offset
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/sys/bus/iio/devices/iio:deviceX/out_current_ledY_ambient_offset
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Date: December 2015
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KernelVersion:
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Contact: Andrew F. Davis <afd@ti.com>
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Description:
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Get and set the offset cancellation DAC setting for these
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stages. The values are expressed in 5-bit sign-magnitude.
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What: /sys/bus/iio/devices/iio:deviceX/out_current_ledY_raw
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Date: December 2015
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KernelVersion:
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Contact: Andrew F. Davis <afd@ti.com>
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Description:
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Get and set the LED current for the specified LED. Y is the
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specific LED number.

‎Documentation/ABI/testing/sysfs-bus-iio-magnetometer-hmc5843

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What: /sys/bus/iio/devices/iio:deviceX/meas_conf
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What: /sys/bus/iio/devices/iio:deviceX/meas_conf_available
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KernelVersion: 4.5
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Contact: linux-iio@vger.kernel.org
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Description:
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Current configuration and available configurations
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for the bias current.
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normal - Normal measurement configurations (default)
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positivebias - Positive bias configuration
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negativebias - Negative bias configuration
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disabled - Only available on HMC5983. Disables magnetic
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sensor and enables temperature sensor.
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Note: The effect of this configuration may vary
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according to the device. For exact documentation
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check the device's datasheet.

‎Documentation/ABI/testing/sysfs-bus-iio-vf610

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Specifies the hardware conversion mode used. The three
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available modes are "normal", "high-speed" and "low-power",
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where the last is the default mode.
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What: /sys/bus/iio/devices/iio:deviceX/out_conversion_mode
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KernelVersion: 4.6
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Contact: linux-iio@vger.kernel.org
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Description:
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Specifies the hardware conversion mode used within DAC.
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The two available modes are "high-power" and "low-power",
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where "low-power" mode is the default mode.

‎Documentation/ABI/testing/sysfs-class-cxl

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Decimal value of the Per Process MMIO space length.
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Users: https://github.com/ibm-capi/libcxl
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What: /sys/class/cxl/<afu>m/pp_mmio_off
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What: /sys/class/cxl/<afu>m/pp_mmio_off (not in a guest)
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Date: September 2014
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Contact: linuxppc-dev@lists.ozlabs.org
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Description: read only
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Identifies the revision level of the PSL.
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Users: https://github.com/ibm-capi/libcxl
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What: /sys/class/cxl/<card>/base_image
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What: /sys/class/cxl/<card>/base_image (not in a guest)
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Date: September 2014
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Contact: linuxppc-dev@lists.ozlabs.org
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Description: read only
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during the initial program load.
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Users: https://github.com/ibm-capi/libcxl
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What: /sys/class/cxl/<card>/image_loaded
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What: /sys/class/cxl/<card>/image_loaded (not in a guest)
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Date: September 2014
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Contact: linuxppc-dev@lists.ozlabs.org
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Description: read only
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Will return "user" or "factory" depending on the image loaded
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onto the card.
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What: /sys/class/cxl/<card>/load_image_on_perst
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What: /sys/class/cxl/<card>/load_image_on_perst (not in a guest)
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Date: December 2014
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Contact: linuxppc-dev@lists.ozlabs.org
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Description: read/write
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to reload the FPGA depending on load_image_on_perst.
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Users: https://github.com/ibm-capi/libcxl
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What: /sys/class/cxl/<card>/perst_reloads_same_image
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What: /sys/class/cxl/<card>/perst_reloads_same_image (not in a guest)
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Date: July 2015
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Contact: linuxppc-dev@lists.ozlabs.org
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Description: read/write

‎Documentation/ABI/testing/sysfs-class-net-batman-adv

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What: /sys/class/net/<iface>/batman-adv/throughput_override
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Date: Feb 2014
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Contact: Antonio Quartulli <antonio@meshcoding.com>
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description:
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Defines the throughput value to be used by B.A.T.M.A.N. V
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when estimating the link throughput using this interface.
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If the value is set to 0 then batman-adv will try to
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estimate the throughput by itself.
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What: /sys/class/net/<iface>/batman-adv/elp_interval
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Date: Feb 2014
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Contact: Linus Lüssing <linus.luessing@web.de>
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Description:
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Defines the interval in milliseconds in which batman
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sends its probing packets for link quality measurements.
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What: /sys/class/net/<iface>/batman-adv/iface_status
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Date: May 2010
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Contact: Marek Lindner <mareklindner@neomailbox.ch>
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The /sys/class/net/<iface>/batman-adv/mesh_iface file
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displays the batman mesh interface this <iface>
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currently is associated with.
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‎Documentation/ABI/testing/sysfs-class-rc-nuvoton

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What: /sys/class/rc/rcN/wakeup_data
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Date: Mar 2016
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KernelVersion: 4.6
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Contact: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Description:
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Reading this file returns the stored CIR wakeup sequence.
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It starts with a pulse, followed by a space, pulse etc.
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All values are in microseconds.
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The same format can be used to store a wakeup sequence
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in the Nuvoton chip by writing to this file.
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Note: Some systems reset the stored wakeup sequence to a
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factory default on each boot. On such systems store the
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wakeup sequence in a file and set it on boot using e.g.
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a udev rule.

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