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lf-6.6.y
linux-imx/Documentation/ABI/stable/sysfs-class-rfkill
Mauro Carvalho Chehab 98913408c5 docs: ABI: stable: make files ReST compatible 
Several entries at the stable ABI files won't parse if we pass
them directly to the ReST output.

Adjust them, in order to allow adding their contents as-is at
the stable ABI book.

Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/467a0dfbcdf00db710a629d3fe4a2563750339d8.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-30 13:07:01 +01:00

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rfkill - radio frequency (RF) connector kill switch support

For details to this subsystem look at Documentation/driver-api/rfkill.rst.

For the deprecated /sys/class/rfkill/*/claim knobs of this interface look in Documentation/ABI/removed/sysfs-class-rfkill.

What: /sys/class/rfkill Date: 09-Jul-2007 KernelVersion: v2.6.22 Contact: linux-wireless@vger.kernel.org, Description: The rfkill class subsystem folder. Each registered rfkill driver is represented by an rfkillX subfolder (X being an integer >= 0).

What: /sys/class/rfkill/rfkill[0-9]+/name Date: 09-Jul-2007 KernelVersion v2.6.22 Contact: linux-wireless@vger.kernel.org Description: Name assigned by driver to this key (interface or driver name). Values: arbitrary string.

What: /sys/class/rfkill/rfkill[0-9]+/type Date: 09-Jul-2007 KernelVersion v2.6.22 Contact: linux-wireless@vger.kernel.org Description: Driver type string ("wlan", "bluetooth", etc). Values: See include/linux/rfkill.h.

What: /sys/class/rfkill/rfkill[0-9]+/persistent Date: 09-Jul-2007 KernelVersion v2.6.22 Contact: linux-wireless@vger.kernel.org Description: Whether the soft blocked state is initialised from non-volatile storage at startup. Values: A numeric value:

	- 0: false
	- 1: true

What: /sys/class/rfkill/rfkill[0-9]+/state Date: 09-Jul-2007 KernelVersion v2.6.22 Contact: linux-wireless@vger.kernel.org Description: Current state of the transmitter. This file was scheduled to be removed in 2014, but due to its large number of users it will be sticking around for a bit longer. Despite it being marked as stable, the newer "hard" and "soft" interfaces should be preferred, since it is not possible to express the 'soft and hard block' state of the rfkill driver through this interface. There will likely be another attempt to remove it in the future. Values: A numeric value.

	0: RFKILL_STATE_SOFT_BLOCKED
		transmitter is turned off by software
	1: RFKILL_STATE_UNBLOCKED
		transmitter is (potentially) active
	2: RFKILL_STATE_HARD_BLOCKED
		transmitter is forced off by something outside of
		the driver's control.

What: /sys/class/rfkill/rfkill[0-9]+/hard Date: 12-March-2010 KernelVersion v2.6.34 Contact: linux-wireless@vger.kernel.org Description: Current hardblock state. This file is read only. Values: A numeric value.

	0: inactive
		The transmitter is (potentially) active.
	1: active
		The transmitter is forced off by something outside of
		the driver's control.

What: /sys/class/rfkill/rfkill[0-9]+/soft Date: 12-March-2010 KernelVersion v2.6.34 Contact: linux-wireless@vger.kernel.org Description: Current softblock state. This file is read and write. Values: A numeric value.

	0: inactive
		The transmitter is (potentially) active.

	1: active
		The transmitter is turned off by software.