Video4Linux (V4L) driver-specific documentation

Copyright © 1999-2016 : LinuxTV Developers

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. ASPEED video driver
  • 1.1. V4L2_CID_ASPEED_HQ_MODE
  • 1.2. V4L2_CID_ASPEED_HQ_JPEG_QUALITY
• 2. Using camera sensor drivers
  • 2.1. Frame size
    • 2.1.1. Freely configurable camera sensor drivers
    • 2.1.2. Register list based drivers
  • 2.2. Frame interval configuration
    • 2.2.1. Raw camera sensors
    • 2.2.2. USB cameras etc. devices
  • 2.3. Rotation, orientation and flipping
• 3. MIPI CCS camera sensor driver
  • 3.1. Pixel Array sub-device
  • 3.2. Binner
  • 3.3. Scaler
  • 3.4. Digital and analogue crop
  • 3.5. Private controls
    • 3.5.1. Analogue gain model
    • 3.5.2. Alternate analogue gain model
    • 3.5.3. Shading correction
• 4. The cx2341x driver
  • 4.1. Non-compressed file format
    • 4.1.1. Raw format c example
  • 4.2. Format of embedded V4L2_MPEG_STREAM_VBI_FMT_IVTV VBI data
• 5. DW100 dewarp driver
• 6. i.MX Video Capture Driver
  • 6.1. Events
    • 6.1.1. ipuX_csiY
  • 6.2. Controls
    • 6.2.1. Frame Interval Monitor in ipuX_csiY
    • 6.2.2. File list
    • 6.2.3. Authors
• 7. Maxim Integrated MAX2175 RF to bits tuner driver
  • 7.1. V4L2_CID_MAX2175_I2S_ENABLE
  • 7.2. V4L2_CID_MAX2175_HSLS
  • 7.3. V4L2_CID_MAX2175_RX_MODE (menu)
• 8. NPCM video driver
  • 8.1. Driver-specific Controls
    • 8.1.1. V4L2_CID_NPCM_CAPTURE_MODE
    • 8.1.2. V4L2_CID_NPCM_RECT_COUNT
  • 8.2. References
• 9. OMAP 3 Image Signal Processor (ISP) driver
  • 9.1. Events
  • 9.2. Private IOCTLs
  • 9.3. CCDC and preview block IOCTLs
  • 9.4. Statistic blocks IOCTLs
  • 9.5. VIDIOC_OMAP3ISP_STAT_EN
  • 9.6. VIDIOC_OMAP3ISP_AEWB_CFG, VIDIOC_OMAP3ISP_HIST_CFG and VIDIOC_OMAP3ISP_AF_CFG
  • 9.7. VIDIOC_OMAP3ISP_STAT_REQ
  • 9.8. References
• 10. ST VGXY61 camera sensor driver
  • 10.1. V4L2_CID_HDR_SENSOR_MODE
• 11. THine THP7312 ISP driver
• 12. The Linux USB Video Class (UVC) driver
  • 12.1. Extension Unit (XU) support
    • 12.1.1. Introduction
    • 12.1.2. Control mappings
    • 12.1.3. Security
    • 12.1.4. Debugging
    • 12.1.5. IOCTL reference
      • 12.1.5.1. UVCIOC_CTRL_MAP - Map a UVC control to a V4L2 control
      • 12.1.5.2. UVCIOC_CTRL_QUERY - Query a UVC XU control