| What: /sys/class/rc/ | |
| Date: Apr 2010 | |
| KernelVersion: 2.6.35 | |
| Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | |
| Description: | |
| The rc/ class sub-directory belongs to the Remote Controller | |
| core and provides a sysfs interface for configuring infrared | |
| remote controller receivers. | |
| What: /sys/class/rc/rc<N>/ | |
| Date: Apr 2010 | |
| KernelVersion: 2.6.35 | |
| Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | |
| Description: | |
| A /sys/class/rc/rcN directory is created for each remote | |
| control receiver device where N is the number of the receiver. | |
| What: /sys/class/rc/rc<N>/protocols | |
| Date: Jun 2010 | |
| KernelVersion: 2.6.36 | |
| Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | |
| Description: | |
| Reading this file returns a list of available protocols, | |
| something like:: | |
| "rc5 [rc6] nec jvc [sony]" | |
| Enabled protocols are shown in [] brackets. | |
| Writing "+proto" will add a protocol to the list of enabled | |
| protocols. | |
| Writing "-proto" will remove a protocol from the list of enabled | |
| protocols. | |
| Writing "proto" will enable only "proto". | |
| Writing "none" will disable all protocols. | |
| Write fails with EINVAL if an invalid protocol combination or | |
| unknown protocol name is used. | |
| What: /sys/class/rc/rc<N>/filter | |
| Date: Jan 2014 | |
| KernelVersion: 3.15 | |
| Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | |
| Description: | |
| Sets the scancode filter expected value. | |
| Use in combination with /sys/class/rc/rcN/filter_mask to set the | |
| expected value of the bits set in the filter mask. | |
| If the hardware supports it then scancodes which do not match | |
| the filter will be ignored. Otherwise the write will fail with | |
| an error. | |
| This value may be reset to 0 if the current protocol is altered. | |
| What: /sys/class/rc/rc<N>/filter_mask | |
| Date: Jan 2014 | |
| KernelVersion: 3.15 | |
| Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | |
| Description: | |
| Sets the scancode filter mask of bits to compare. | |
| Use in combination with /sys/class/rc/rcN/filter to set the bits | |
| of the scancode which should be compared against the expected | |
| value. A value of 0 disables the filter to allow all valid | |
| scancodes to be processed. | |
| If the hardware supports it then scancodes which do not match | |
| the filter will be ignored. Otherwise the write will fail with | |
| an error. | |
| This value may be reset to 0 if the current protocol is altered. | |
| What: /sys/class/rc/rc<N>/wakeup_protocols | |
| Date: Feb 2017 | |
| KernelVersion: 4.11 | |
| Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | |
| Description: | |
| Reading this file returns a list of available protocols to use | |
| for the wakeup filter, something like:: | |
| "rc-5 nec nec-x rc-6-0 rc-6-6a-24 [rc-6-6a-32] rc-6-mce" | |
| Note that protocol variants are listed, so "nec", "sony", | |
| "rc-5", "rc-6" have their different bit length encodings | |
| listed if available. | |
| The enabled wakeup protocol is shown in [] brackets. | |
| Only one protocol can be selected at a time. | |
| Writing "proto" will use "proto" for wakeup events. | |
| Writing "none" will disable wakeup. | |
| Write fails with EINVAL if an invalid protocol combination or | |
| unknown protocol name is used, or if wakeup is not supported by | |
| the hardware. | |
| What: /sys/class/rc/rc<N>/wakeup_filter | |
| Date: Jan 2014 | |
| KernelVersion: 3.15 | |
| Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | |
| Description: | |
| Sets the scancode wakeup filter expected value. | |
| Use in combination with /sys/class/rc/rcN/wakeup_filter_mask to | |
| set the expected value of the bits set in the wakeup filter mask | |
| to trigger a system wake event. | |
| If the hardware supports it and wakeup_filter_mask is not 0 then | |
| scancodes which match the filter will wake the system from e.g. | |
| suspend to RAM or power off. | |
| Otherwise the write will fail with an error. | |
| This value may be reset to 0 if the wakeup protocol is altered. | |
| What: /sys/class/rc/rc<N>/wakeup_filter_mask | |
| Date: Jan 2014 | |
| KernelVersion: 3.15 | |
| Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | |
| Description: | |
| Sets the scancode wakeup filter mask of bits to compare. | |
| Use in combination with /sys/class/rc/rcN/wakeup_filter to set | |
| the bits of the scancode which should be compared against the | |
| expected value to trigger a system wake event. | |
| If the hardware supports it and wakeup_filter_mask is not 0 then | |
| scancodes which match the filter will wake the system from e.g. | |
| suspend to RAM or power off. | |
| Otherwise the write will fail with an error. | |
| This value may be reset to 0 if the wakeup protocol is altered. |