Documentation/ABI/stable/sysfs-class-rfkill

   1 rfkill - radio frequency (RF) connector kill switch support
   2
   3 For details to this subsystem look at Documentation/driver-api/rfkill.rst.
   4
   5 For the deprecated ``/sys/class/rfkill/*/claim`` knobs of this interface look in
   6 Documentation/ABI/removed/sysfs-class-rfkill.
   7
   8 What:           /sys/class/rfkill
   9 Date:           09-Jul-2007
  10 KernelVersion:  v2.6.22
  11 Contact:        linux-wireless@vger.kernel.org,
  12 Description:    The rfkill class subsystem folder.
  13                 Each registered rfkill driver is represented by an rfkillX
  14                 subfolder (X being an integer >= 0).
  15
  16
  17 What:           /sys/class/rfkill/rfkill[0-9]+/name
  18 Date:           09-Jul-2007
  19 KernelVersion   v2.6.22
  20 Contact:        linux-wireless@vger.kernel.org
  21 Description:    Name assigned by driver to this key (interface or driver name).
  22 Values:         arbitrary string.
  23
  24
  25 What:           /sys/class/rfkill/rfkill[0-9]+/type
  26 Date:           09-Jul-2007
  27 KernelVersion   v2.6.22
  28 Contact:        linux-wireless@vger.kernel.org
  29 Description:    Driver type string ("wlan", "bluetooth", etc).
  30 Values:         See include/linux/rfkill.h.
  31
  32
  33 What:           /sys/class/rfkill/rfkill[0-9]+/persistent
  34 Date:           09-Jul-2007
  35 KernelVersion   v2.6.22
  36 Contact:        linux-wireless@vger.kernel.org
  37 Description:    Whether the soft blocked state is initialised from non-volatile
  38                 storage at startup.
  39 Values:         A numeric value:
  40
  41                 - 0: false
  42                 - 1: true
  43
  44
  45 What:           /sys/class/rfkill/rfkill[0-9]+/state
  46 Date:           09-Jul-2007
  47 KernelVersion   v2.6.22
  48 Contact:        linux-wireless@vger.kernel.org
  49 Description:    Current state of the transmitter.
  50                 This file was scheduled to be removed in 2014, but due to its
  51                 large number of users it will be sticking around for a bit
  52                 longer. Despite it being marked as stable, the newer "hard" and
  53                 "soft" interfaces should be preferred, since it is not possible
  54                 to express the 'soft and hard block' state of the rfkill driver
  55                 through this interface. There will likely be another attempt to
  56                 remove it in the future.
  57 Values:         A numeric value.
  58
  59                 0: RFKILL_STATE_SOFT_BLOCKED
  60                         transmitter is turned off by software
  61                 1: RFKILL_STATE_UNBLOCKED
  62                         transmitter is (potentially) active
  63                 2: RFKILL_STATE_HARD_BLOCKED
  64                         transmitter is forced off by something outside of
  65                         the driver's control.
  66
  67
  68 What:           /sys/class/rfkill/rfkill[0-9]+/hard
  69 Date:           12-March-2010
  70 KernelVersion   v2.6.34
  71 Contact:        linux-wireless@vger.kernel.org
  72 Description:    Current hardblock state. This file is read only.
  73 Values:         A numeric value.
  74
  75                 0: inactive
  76                         The transmitter is (potentially) active.
  77                 1: active
  78                         The transmitter is forced off by something outside of
  79                         the driver's control.
  80
  81
  82 What:           /sys/class/rfkill/rfkill[0-9]+/soft
  83 Date:           12-March-2010
  84 KernelVersion   v2.6.34
  85 Contact:        linux-wireless@vger.kernel.org
  86 Description:    Current softblock state. This file is read and write.
  87 Values:         A numeric value.
  88
  89                 0: inactive
  90                         The transmitter is (potentially) active.
  91
  92                 1: active
  93                         The transmitter is turned off by software.