summaryrefslogtreecommitdiffstats
path: root/Documentation/userspace-api/media/rc/rc-intro.rst
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/userspace-api/media/rc/rc-intro.rst')
-rw-r--r--Documentation/userspace-api/media/rc/rc-intro.rst24
1 files changed, 24 insertions, 0 deletions
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 000000000..1338478e2
--- /dev/null
+++ b/Documentation/userspace-api/media/rc/rc-intro.rst
@@ -0,0 +1,24 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+
+.. _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>`.