Documentation/media/uapi/v4l/common.rst

   1 .. -*- coding: utf-8; mode: rst -*-
   2
   3 .. _common:
   4
   5 ###################
   6 Common API Elements
   7 ###################
   8 Programming a V4L2 device consists of these steps:
   9
  10 -  Opening the device
  11
  12 -  Changing device properties, selecting a video and audio input, video
  13    standard, picture brightness a. o.
  14
  15 -  Negotiating a data format
  16
  17 -  Negotiating an input/output method
  18
  19 -  The actual input/output loop
  20
  21 -  Closing the device
  22
  23 In practice most steps are optional and can be executed out of order. It
  24 depends on the V4L2 device type, you can read about the details in
  25 :ref:`devices`. In this chapter we will discuss the basic concepts
  26 applicable to all devices.
  27
  28
  29 .. toctree::
  30     :maxdepth: 1
  31
  32     open
  33     querycap
  34     app-pri
  35     video
  36     audio
  37     tuner
  38     standard
  39     dv-timings
  40     control
  41     extended-controls
  42     format
  43     planar-apis
  44     crop
  45     selection-api
  46     streaming-par