Video4Linux (V4L) driver-specific documentation¶

This documentation is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation version 2 of the License.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

For more details see the file COPYING in the source distribution of Linux.

Table of Contents

1. Guidelines for Video4Linux pixel format 4CCs
- 1.1. Raw bayer
2. Infrared remote control support in video4linux drivers
- 2.1. Basics
- 2.2. How it works
3. Using with lircd
4. Using without lircd
5. Tuner drivers
- 5.1. Simple tuner Programming
- 5.2. Tuner Manufacturers
6. Cards List
- 6.1. AU0828 cards list
- 6.2. BTTV cards list
- 6.3. cx23885 cards list
- 6.4. CX88 cards list
- 6.5. EM28xx cards list
- 6.6. IVTV cards list
- 6.7. SAA7134 cards list
- 6.8. SAA7164 cards list
- 6.9. TM6000 cards list
- 6.10. Tuner cards list
- 6.11. USBvision cards list
- 6.12. The gspca cards list
7. BCM2835 ISP Driver
- 7.1. Introduction
- 7.2. Pipeline Configuration
  - 7.2.1. Configuration Parameters
8. The bttv driver
- 8.1. Release notes for bttv
- 8.2. Make bttv work with your card
- 8.3. Autodetecting cards
- 8.4. Still doesn’t work?
- 8.5. Modprobe options
- 8.6. If the box freezes hard with bttv
- 8.7. Bttv quirks
- 8.8. bttv and sound mini howto
  - 8.8.1. How sound works in detail
  - 8.8.2. Other elements of the tvcards array
- 8.9. Cards
- 8.10. Chips used at bttv devices
- 8.11. Specs
- 8.12. Thanks
- 8.13. Contributors
9. The cafe_ccic driver
- 9.1. Introduction
- 9.2. Load time options
10. The cpia2 driver
- 10.1. Introduction
- 10.2. Features
- 10.3. Making and installing the stv672 driver modules
11. The cx18 driver
12. The cx2341x driver
- 12.1. Memory at cx2341x chips
- 12.2. Missing documentation
- 12.3. The cx2341x firmware upload
  - 12.3.1. How to find
  - 12.3.2. How to load
- 12.4. How to call the firmware API
- 12.5. OSD firmware API description
- 12.6. Encoder firmware API description
- 12.7. Decoder firmware API description
- 12.8. PVR350 Video decoder registers 0x02002800 -> 0x02002B00
- 12.9. The cx231xx DMA engine
- 12.10. Non-compressed file format
  - 12.10.1. Raw format c example
- 12.11. Format of embedded V4L2_MPEG_STREAM_VBI_FMT_IVTV VBI data
13. The cx88 driver
- 13.1. Current status
- 13.2. How to add support for new cards
- 13.3. Documentation missing at the cx88 datasheet
- 13.4. Hauppauge WinTV cx88 IR information
  - 13.4.1. Additional info
14. The VPBE V4L2 driver design
- 14.1. File partitioning
- 14.2. Functional partitioning
- 14.3. Current status
- 14.4. To be done
15. The Samsung S5P/EXYNOS4 FIMC driver
- 15.1. Supported SoCs
- 15.2. Supported features
- 15.3. Not currently supported
- 15.4. Files partitioning
- 15.5. User space interfaces
- 15.6. 5. Device mapping to video and subdev device nodes
- 15.7. 7. Build
16. i.MX Video Capture Driver
- 16.1. Introduction
- 16.2. Features
- 16.3. Entities
- 16.4. imx6-mipi-csi2
- 16.5. ipuX_csiY_mux
- 16.6. ipuX_csiY
- 16.7. Cropping in ipuX_csiY
- 16.8. Frame Skipping in ipuX_csiY
- 16.9. Frame Interval Monitor in ipuX_csiY
- 16.10. ipuX_vdic
- 16.11. ipuX_ic_prp
- 16.12. ipuX_ic_prpenc
- 16.13. ipuX_ic_prpvf
- 16.14. Capture Pipelines
- 16.15. Unprocessed Video Capture:
- 16.16. IC Direct Conversions:
- 16.17. Motion Compensated De-interlace:
- 16.18. Usage Notes
- 16.19. SabreLite with OV5642 and OV5640
- 16.20. SabreAuto with ADV7180 decoder
- 16.21. SabreSD with MIPI CSI-2 OV5640
- 16.22. Known Issues
- 16.23. File list
- 16.24. References
- 16.25. Authors
17. i.MX7 Video Capture Driver
- 17.1. Introduction
- 17.2. Entities
- 17.3. imx7-mipi-csi2
- 17.4. csi-mux
- 17.5. csi
- 17.6. Usage Notes
- 17.7. Warp7 with OV2680
- 17.8. References
18. Intel Image Processing Unit 3 (IPU3) Imaging Unit (ImgU) driver
- 18.1. Introduction
- 18.2. CIO2
  - 18.2.1. Capturing frames in raw Bayer format
- 18.3. ImgU
- 18.4. Configuring the Intel IPU3
- 18.5. Example user space code for IPU3
- 18.6. Overview of IPU3 pipeline
- 18.7. References
19. The ivtv driver
- 19.1. Features
- 19.2. Additional features for the PVR-350 (CX23415 based)
- 19.3. See also
- 19.4. IRC
- 19.5. Devices
- 19.6. Base devices
20. Maxim Integrated MAX2175 RF to bits tuner driver
- 20.1. V4L2_CID_MAX2175_I2S_ENABLE
- 20.2. V4L2_CID_MAX2175_HSLS
- 20.3. V4L2_CID_MAX2175_RX_MODE (menu)
21. Vaio Picturebook Motion Eye Camera Driver
- 21.1. Hardware supported
- 21.2. Driver options
- 21.3. Module use
- 21.4. Usage:
- 21.5. Private API
- 21.6. Bugs / Todo
22. OMAP 3 Image Signal Processor (ISP) driver
- 22.1. Introduction
- 22.2. Split to subdevs
- 22.3. Controlling the OMAP 3 ISP
- 22.4. Events
- 22.5. Private IOCTLs
- 22.6. CCDC and preview block IOCTLs
- 22.7. Statistic blocks IOCTLs
- 22.8. VIDIOC_OMAP3ISP_STAT_EN
- 22.9. VIDIOC_OMAP3ISP_AEWB_CFG, VIDIOC_OMAP3ISP_HIST_CFG and VIDIOC_OMAP3ISP_AF_CFG
- 22.10. VIDIOC_OMAP3ISP_STAT_REQ
- 22.11. Technical reference manuals (TRMs) and other documentation
- 22.12. References
23. OMAP4 ISS Driver
- 23.1. Introduction
- 23.2. Tested platforms
- 23.3. File list
- 23.4. References
24. Philips webcams (pwc driver)
25. The pvrusb2 driver
- 25.1. Background
- 25.2. Building
- 25.3. Source file list / functional overview
26. PXA-Camera Host Driver
- 26.1. Constraints
- 26.2. Global video workflow
- 26.3. DMA usage
27. Qualcomm Camera Subsystem driver
- 27.1. Introduction
- 27.2. Qualcomm Camera Subsystem hardware
- 27.3. Supported functionality
- 27.4. Driver Architecture and Design
- 27.5. Implementation
- 27.6. Documentation
- 27.7. References
28. The Radiotrack radio driver
- 28.1. ACKNOWLEDGMENTS
- 28.2. WHY THIS DOCUMENT?
- 28.3. PHYSICAL DESCRIPTION
- 28.4. CONTROLLING THE CARD WITH IOPORT
- 28.5. PROGRAMMING EXAMPLES
29. Renesas R-Car Fine Display Processor (FDP1) Driver
30. The saa7134 driver
- 30.1. Status
- 30.2. Build
- 30.3. Changes / Fixes
- 30.4. Known Problems
- 30.5. Card Variations:
- 30.6. LifeView GPIOs
- 30.7. Credits
31. Cropping and Scaling algorithm, used in the sh_mobile_ceu_camera driver
- 31.1. Terminology
- 31.2. Generic scaling / cropping scheme
- 31.3. S_FMT
- 31.4. S_CROP
32. The Silicon Labs Si470x FM Radio Receivers driver
- 32.1. Information from Silicon Labs
- 32.2. Supported ICs
- 32.3. Supported USB devices
- 32.4. Software
- 32.5. Audio Listing
- 32.6. Module Parameters
- 32.7. Errors
- 32.8. Open Issues
- 32.9. Other useful information and links
33. The Silicon Labs Si4713 FM Radio Transmitter Driver
- 33.1. Information about the Device
- 33.2. Device driver description
- 33.3. Properties description
- 33.4. RNL
- 33.5. Stereo/Mono and RDS subchannels
- 33.6. Testing
34. The SI476x Driver
- 34.1. TODO for the driver
- 34.2. Parameters exposed over debugfs
35. The Soc-Camera Drivers
- 35.1. Terminology
- 35.2. Purpose of the soc-camera subsystem
- 35.3. Existing drivers
- 35.4. Camera host API
- 35.5. Camera API
- 35.6. VIDIOC_S_CROP and VIDIOC_S_FMT behaviour
- 35.7. Format conversion
36. The Linux USB Video Class (UVC) driver
- 36.1. Extension Unit (XU) support
37. The Virtual Media Controller Driver (vimc)
- 37.1. Topology
  - 37.1.1. Configuring the topology
- 37.2. Subdevices
- 37.3. Module options
- 37.4. Source code documentation
  - 37.4.1. vimc-streamer
38. The Virtual Video Test Driver (vivid)
- 38.1. Configuring the driver
- 38.2. Video Capture
- 38.3. Video Output
  - 38.3.1. S-Video Output
  - 38.3.2. HDMI Output
- 38.4. VBI Capture
- 38.5. VBI Output
- 38.6. Radio Receiver
- 38.7. Radio Transmitter
- 38.8. Software Defined Radio Receiver
- 38.9. Controls
- 38.10. Video, VBI and RDS Looping
  - 38.10.1. Video and Sliced VBI looping
  - 38.10.2. Radio & RDS Looping
- 38.11. Cropping, Composing, Scaling
- 38.12. Formats
- 38.13. Capture Overlay
- 38.14. Output Overlay
- 38.15. CEC (Consumer Electronics Control)
- 38.16. Some Future Improvements
39. Zoran 364xx based USB webcam module
- 39.1. Introduction
- 39.2. Install
- 39.3. Usage
- 39.4. links
- 39.5. Supported devices