Device                V4L2 close() — Close a V4L2 device
(IOCtl)               V4L2 ioctl() — Program a V4L2 device
                      ioctl VIDIOC_CROPCAP — Information about the video cropping and scaling abilities
                      ioctl VIDIOC_DBG_G_CHIP_IDENT — Identify the chips on a TV card
                      ioctl VIDIOC_DBG_G_REGISTER, VIDIOC_DBG_S_REGISTER — Read or write hardware registers
                      ioctl VIDIOC_DQEVENT — Dequeue event
                      ioctl VIDIOC_ENCODER_CMD, VIDIOC_TRY_ENCODER_CMD — Execute an encoder command
                      ioctl VIDIOC_ENUMAUDIO — Enumerate audio inputs
                      ioctl VIDIOC_ENUMAUDOUT — Enumerate audio outputs
                      ioctl VIDIOC_ENUM_DV_PRESETS — Enumerate supported Digital Video presets
Format                ioctl VIDIOC_ENUM_FMT — Enumerate image formats
Format                ioctl VIDIOC_ENUM_FRAMESIZES — Enumerate frame sizes
Format                ioctl VIDIOC_ENUM_FRAMEINTERVALS — Enumerate frame intervals
VideoInput            ioctl VIDIOC_ENUMINPUT — Enumerate video inputs
                      ioctl VIDIOC_ENUMOUTPUT — Enumerate video outputs
VideoStandard         ioctl VIDIOC_ENUMSTD — Enumerate supported video standards
                      ioctl VIDIOC_G_AUDIO, VIDIOC_S_AUDIO — Query or select the current audio input and its attributes
                      ioctl VIDIOC_G_AUDOUT, VIDIOC_S_AUDOUT — Query or select the current audio output
                      ioctl VIDIOC_G_CROP, VIDIOC_S_CROP — Get or set the current cropping rectangle
Control               ioctl VIDIOC_G_CTRL, VIDIOC_S_CTRL — Get or set the value of a control
                      ioctl VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET — Query or select the DV preset of the current input or output
                      ioctl VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS — Get or set custom DV timings for input or output
                      ioctl VIDIOC_G_ENC_INDEX — Get meta data about a compressed video stream
                      ioctl VIDIOC_G_EXT_CTRLS, VIDIOC_S_EXT_CTRLS, VIDIOC_TRY_EXT_CTRLS — Get or set the value of several controls, try control values
                      ioctl VIDIOC_G_FBUF, VIDIOC_S_FBUF — Get or set frame buffer overlay parameters
Format            pix ioctl VIDIOC_G_FMT, VIDIOC_S_FMT, VIDIOC_TRY_FMT — Get or set the data format, try a format
                pixmp ioctl VIDIOC_G_FMT, VIDIOC_S_FMT, VIDIOC_TRY_FMT — Get or set the data format, try a format
                  win ioctl VIDIOC_G_FMT, VIDIOC_S_FMT, VIDIOC_TRY_FMT — Get or set the data format, try a format
                  vbi ioctl VIDIOC_G_FMT, VIDIOC_S_FMT, VIDIOC_TRY_FMT — Get or set the data format, try a format
                 svbi ioctl VIDIOC_G_FMT, VIDIOC_S_FMT, VIDIOC_TRY_FMT — Get or set the data format, try a format
                  raw ioctl VIDIOC_G_FMT, VIDIOC_S_FMT, VIDIOC_TRY_FMT — Get or set the data format, try a format
                      ioctl VIDIOC_G_FREQUENCY, VIDIOC_S_FREQUENCY — Get or set tuner or modulator radio frequency
VideoInput            ioctl VIDIOC_G_INPUT, VIDIOC_S_INPUT — Query or select the current video input
                      ioctl VIDIOC_G_JPEGCOMP, VIDIOC_S_JPEGCOMP
                      ioctl VIDIOC_G_MODULATOR, VIDIOC_S_MODULATOR — Get or set modulator attributes
                      ioctl VIDIOC_G_OUTPUT, VIDIOC_S_OUTPUT — Query or select the current video output
                      ioctl VIDIOC_G_PARM, VIDIOC_S_PARM — Get or set streaming parameters
Priority              ioctl VIDIOC_G_PRIORITY, VIDIOC_S_PRIORITY — Query or request the access priority associated with a file descriptor
                      ioctl VIDIOC_G_SLICED_VBI_CAP — Query sliced VBI capabilities
VideoStandard         ioctl VIDIOC_G_STD, VIDIOC_S_STD — Query or select the video standard of the current input
                      ioctl VIDIOC_G_TUNER, VIDIOC_S_TUNER — Get or set tuner attributes
                      ioctl VIDIOC_LOG_STATUS — Log driver status information
                      ioctl VIDIOC_OVERLAY — Start or stop video overlay
                      ioctl VIDIOC_QBUF, VIDIOC_DQBUF — Exchange a buffer with the driver
                      ioctl VIDIOC_QUERYBUF — Query the status of a buffer
Capability            ioctl VIDIOC_QUERYCAP — Query device capabilities
Control               ioctl VIDIOC_QUERYCTRL, VIDIOC_QUERYMENU — Enumerate controls and menu control items
                      ioctl VIDIOC_QUERY_DV_PRESET — Sense the DV preset received by the current input
VideoStandard         ioctl VIDIOC_QUERYSTD — Sense the video standard received by the current input
                      ioctl VIDIOC_REQBUFS — Initiate Memory Mapping or User Pointer I/O
                      ioctl VIDIOC_S_HW_FREQ_SEEK — Perform a hardware frequency seek
                      ioctl VIDIOC_STREAMON, VIDIOC_STREAMOFF — Start or stop streaming I/O
                      ioctl VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL — Enumerate frame intervals
                      ioctl VIDIOC_SUBDEV_ENUM_FRAME_SIZE — Enumerate media bus frame sizes
                      ioctl VIDIOC_SUBDEV_ENUM_MBUS_CODE — Enumerate media bus formats
                      ioctl VIDIOC_SUBDEV_G_CROP, VIDIOC_SUBDEV_S_CROP — Get or set the crop rectangle on a subdev pad
                      ioctl VIDIOC_SUBDEV_G_FMT, VIDIOC_SUBDEV_S_FMT — Get or set the data format on a subdev pad
                      ioctl VIDIOC_SUBDEV_G_FRAME_INTERVAL, VIDIOC_SUBDEV_S_FRAME_INTERVAL — Get or set the frame interval on a subdev pad
                      ioctl VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT — Subscribe or unsubscribe event
                      V4L2 mmap() — Map device memory into application address space
                      V4L2 munmap() — Unmap device memory
Device                V4L2 open() — Open a V4L2 device
                      V4L2 poll() — Wait for some event on a file descriptor
VideoCapture.Read     V4L2 read() — Read from a V4L2 device
                      V4L2 select() — Synchronous I/O multiplexing
                      V4L2 write() — Write to a V4L2 device