--- zzzz-none-000/linux-3.10.107/Documentation/DocBook/media/v4l/vidioc-g-dv-timings.xml 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/Documentation/DocBook/media/v4l/vidioc-g-dv-timings.xml 2021-02-04 17:41:59.000000000 +0000 @@ -7,6 +7,8 @@ VIDIOC_G_DV_TIMINGS VIDIOC_S_DV_TIMINGS + VIDIOC_SUBDEV_G_DV_TIMINGS + VIDIOC_SUBDEV_S_DV_TIMINGS Get or set DV timings for input or output @@ -34,7 +36,7 @@ request - VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS + VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS, VIDIOC_SUBDEV_G_DV_TIMINGS, VIDIOC_SUBDEV_S_DV_TIMINGS @@ -156,19 +158,19 @@ __u32 il_vfrontporch Vertical front porch in lines for the even field (aka field 2) of - interlaced field formats. + interlaced field formats. Must be 0 for progressive formats. __u32 il_vsync Vertical sync length in lines for the even field (aka field 2) of - interlaced field formats. + interlaced field formats. Must be 0 for progressive formats. __u32 il_vbackporch Vertical back porch in lines for the even field (aka field 2) of - interlaced field formats. + interlaced field formats. Must be 0 for progressive formats. __u32 @@ -318,10 +320,20 @@ V4L2_DV_FL_HALF_LINE - Specific to interlaced formats: if set, then field 1 (aka the odd field) -is really one half-line longer and field 2 (aka the even field) is really one half-line -shorter, so each field has exactly the same number of half-lines. Whether half-lines can be -detected or used depends on the hardware. + Specific to interlaced formats: if set, then the vertical frontporch +of field 1 (aka the odd field) is really one half-line longer and the vertical backporch +of field 2 (aka the even field) is really one half-line shorter, so each field has exactly +the same number of half-lines. Whether half-lines can be detected or used depends on +the hardware. + + + + V4L2_DV_FL_IS_CE_VIDEO + If set, then this is a Consumer Electronics (CE) video format. +Such formats differ from other formats (commonly called IT formats) in that if +R'G'B' encoding is used then by default the R'G'B' values use limited range +(i.e. 16-235) as opposed to full range (i.e. 0-255). All formats defined in CEA-861 +except for the 640x480p59.94 format are CE formats.