| What: /sys/class/rc/ |
| Date: Apr 2010 |
| KernelVersion: 2.6.35 |
| Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> |
| 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/rcN/ |
| Date: Apr 2010 |
| KernelVersion: 2.6.35 |
| Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> |
| 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/rcN/protocols |
| Date: Jun 2010 |
| KernelVersion: 2.6.36 |
| Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> |
| 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/rcN/filter |
| Date: Jan 2014 |
| KernelVersion: 3.15 |
| Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> |
| 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/rcN/filter_mask |
| Date: Jan 2014 |
| KernelVersion: 3.15 |
| Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> |
| 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/rcN/wakeup_protocols |
| Date: Feb 2017 |
| KernelVersion: 4.11 |
| Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> |
| 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/rcN/wakeup_filter |
| Date: Jan 2014 |
| KernelVersion: 3.15 |
| Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> |
| 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/rcN/wakeup_filter_mask |
| Date: Jan 2014 |
| KernelVersion: 3.15 |
| Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> |
| 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. |