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Diffstat (limited to 'Documentation/userspace-api/media/rc/rc-intro.rst')
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diff --git a/Documentation/userspace-api/media/rc/rc-intro.rst b/Documentation/userspace-api/media/rc/rc-intro.rst new file mode 100644 index 000000000000..14e85157bf23 --- /dev/null +++ b/Documentation/userspace-api/media/rc/rc-intro.rst @@ -0,0 +1,31 @@ +.. Permission is granted to copy, distribute and/or modify this +.. document under the terms of the GNU Free Documentation License, +.. Version 1.1 or any later version published by the Free Software +.. Foundation, with no Invariant Sections, no Front-Cover Texts +.. and no Back-Cover Texts. A copy of the license is included at +.. Documentation/userspace-api/media/fdl-appendix.rst. +.. +.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections + +.. _Remote_controllers_Intro: + +************ +Introduction +************ + +Currently, most analog and digital devices have a Infrared input for +remote controllers. Each manufacturer has their own type of control. It +is not rare for the same manufacturer to ship different types of +controls, depending on the device. + +A Remote Controller interface is mapped as a normal evdev/input +interface, just like a keyboard or a mouse. So, it uses all ioctls +already defined for any other input devices. + +However, remove controllers are more flexible than a normal input +device, as the IR receiver (and/or transmitter) can be used in +conjunction with a wide variety of different IR remotes. + +In order to allow flexibility, the Remote Controller subsystem allows +controlling the RC-specific attributes via +:ref:`the sysfs class nodes <remote_controllers_sysfs_nodes>`. |