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54f38fcae5
Since 2017, there is an space reserved for userspace API,
created by changeset 1d596dee38 ("docs: Create a user-space API guide").
As the media subsystem was one of the first subsystems to use
Sphinx, until this patch, we were keeping things on a separate
place.
Let's just use the new location, as having all uAPI altogether
will likely make things easier for developers.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
31 lines
1.3 KiB
ReStructuredText
31 lines
1.3 KiB
ReStructuredText
.. Permission is granted to copy, distribute and/or modify this
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.. document under the terms of the GNU Free Documentation License,
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.. Version 1.1 or any later version published by the Free Software
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.. Foundation, with no Invariant Sections, no Front-Cover Texts
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.. and no Back-Cover Texts. A copy of the license is included at
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.. Documentation/userspace-api/media/fdl-appendix.rst.
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..
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.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
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.. _Remote_controllers_Intro:
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************
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Introduction
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************
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Currently, most analog and digital devices have a Infrared input for
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remote controllers. Each manufacturer has their own type of control. It
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is not rare for the same manufacturer to ship different types of
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controls, depending on the device.
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A Remote Controller interface is mapped as a normal evdev/input
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interface, just like a keyboard or a mouse. So, it uses all ioctls
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already defined for any other input devices.
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However, remove controllers are more flexible than a normal input
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device, as the IR receiver (and/or transmitter) can be used in
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conjunction with a wide variety of different IR remotes.
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In order to allow flexibility, the Remote Controller subsystem allows
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controlling the RC-specific attributes via
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:ref:`the sysfs class nodes <remote_controllers_sysfs_nodes>`.
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