forked from ~ljy/RK356X_SDK_RELEASE
kernel/Documentation/ABI/testing/sysfs-class-rc
.. .. @@ -21,15 +21,22 @@ 21 21 Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> 22 22 Description: 23 23 Reading this file returns a list of available protocols, 24 24 25 25 26 "rc5 [rc6] nec jvc [sony]" 27 26 28 Enabled protocols are shown in [] brackets. 29 27 30 Writing "+proto" will add a protocol to the list of enabled 28 31 protocols. 32 29 33 Writing "-proto" will remove a protocol from the list of enabled 30 34 protocols. 35 31 36 Writing "proto" will enable only "proto". 37 32 38 Writing "none" will disable all protocols. 39 33 40 Write fails with EINVAL if an invalid protocol combination or 34 41 unknown protocol name is used. 35 42 .. .. @@ -39,11 +46,13 @@ 39 46 Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> 40 47 Description: 41 48 Sets the scancode filter expected value. 49 42 50 Use in combination with /sys/class/rc/rcN/filter_mask to set the 43 51 expected value of the bits set in the filter mask. 44 52 If the hardware supports it then scancodes which do not match 45 53 the filter will be ignored. Otherwise the write will fail with 46 54 an error. 55 47 56 This value may be reset to 0 if the current protocol is altered. 48 57 49 58 What: /sys/class/rc/rcN/filter_mask .. .. @@ -56,9 +65,11 @@ 56 65 of the scancode which should be compared against the expected 57 66 value. A value of 0 disables the filter to allow all valid 58 67 scancodes to be processed. 68 59 69 If the hardware supports it then scancodes which do not match 60 70 the filter will be ignored. Otherwise the write will fail with 61 71 an error. 72 62 73 This value may be reset to 0 if the current protocol is altered. 63 74 64 75 What: /sys/class/rc/rcN/wakeup_protocols .. .. @@ -67,15 +78,22 @@ 67 78 Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> 68 79 Description: 69 80 Reading this file returns a list of available protocols to use 70 81 82 71 83 "rc-5 nec nec-x rc-6-0 rc-6-6a-24 [rc-6-6a-32] rc-6-mce" 84 72 85 Note that protocol variants are listed, so "nec", "sony", 73 86 "rc-5", "rc-6" have their different bit length encodings 74 87 listed if available. 88 75 89 The enabled wakeup protocol is shown in [] brackets. 90 76 91 Only one protocol can be selected at a time. 92 77 93 Writing "proto" will use "proto" for wakeup events. 94 78 95 Writing "none" will disable wakeup. 96 79 97 Write fails with EINVAL if an invalid protocol combination or 80 98 unknown protocol name is used, or if wakeup is not supported by 81 99 the hardware. .. .. @@ -86,13 +104,17 @@ 86 104 Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> 87 105 Description: 88 106 Sets the scancode wakeup filter expected value. 107 89 108 Use in combination with /sys/class/rc/rcN/wakeup_filter_mask to 90 109 set the expected value of the bits set in the wakeup filter mask 91 110 to trigger a system wake event. 111 92 112 If the hardware supports it and wakeup_filter_mask is not 0 then 93 113 scancodes which match the filter will wake the system from e.g. 94 114 suspend to RAM or power off. 115 95 116 Otherwise the write will fail with an error. 117 96 118 This value may be reset to 0 if the wakeup protocol is altered. 97 119 98 120 What: /sys/class/rc/rcN/wakeup_filter_mask .. .. @@ -101,11 +123,15 @@ 101 123 Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> 102 124 Description: 103 125 Sets the scancode wakeup filter mask of bits to compare. 126 104 127 Use in combination with /sys/class/rc/rcN/wakeup_filter to set 105 128 the bits of the scancode which should be compared against the 106 129 expected value to trigger a system wake event. 130 107 131 If the hardware supports it and wakeup_filter_mask is not 0 then 108 132 scancodes which match the filter will wake the system from e.g. 109 133 suspend to RAM or power off. 134 110 135 Otherwise the write will fail with an error. 136 111 137 This value may be reset to 0 if the wakeup protocol is altered.
