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  1. 23 Jan, 2012 1 commit
    • Hans Verkuil's avatar
      [media] V4L2: Add per-device-node capabilities · 583aa3a9
      Hans Verkuil authored
      If V4L2_CAP_DEVICE_CAPS is set, then the new device_caps field is filled with
      the capabilities of the opened device node.
      
      The capabilities field traditionally contains the capabilities of the physical
      device, being a superset of all capabilities available at the several device
      nodes. E.g., if you open /dev/video0, then if it contains VBI caps then that means
      that there is a corresponding vbi node as well. And the capabilities field of
      both the video and vbi nodes should contain identical caps.
      
      However, it would be very useful to also have a capabilities field that contains
      just the caps for the currently open device, hence the new CAP bit and field.
      Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      583aa3a9
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