Table of Contents
- V4L2 close() — Close a V4L2 device
- 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_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_FMT — Enumerate image formats
- ioctl VIDIOC_ENUM_FRAMESIZES — Enumerate frame sizes
- ioctl VIDIOC_ENUM_FRAMEINTERVALS — Enumerate frame intervals
- ioctl VIDIOC_ENUMINPUT — Enumerate video inputs
- ioctl VIDIOC_ENUMOUTPUT — Enumerate video outputs
- 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
- ioctl VIDIOC_G_CTRL, VIDIOC_S_CTRL — Get or set the value of a control
- 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
- 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
- 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
- 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
- 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
- ioctl VIDIOC_QUERYCAP — Query device capabilities
- ioctl VIDIOC_QUERYCTRL, VIDIOC_QUERYMENU — Enumerate controls and menu control items
- 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
- V4L2 mmap() — Map device memory into application address space
- V4L2 munmap() — Unmap device memory
- V4L2 open() — Open a V4L2 device
- V4L2 poll() — Wait for some event on a file descriptor
- V4L2 read() — Read from a V4L2 device
- V4L2 select() — Synchronous I/O multiplexing
- V4L2 write() — Write to a V4L2 device