diff options
Diffstat (limited to 'Documentation/DocBook/media/v4l/vidioc-g-edid.xml')
| -rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-g-edid.xml | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-g-edid.xml b/Documentation/DocBook/media/v4l/vidioc-g-edid.xml index 2702536bbc7c..b7602d30f596 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-edid.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-edid.xml @@ -1,6 +1,6 @@ <refentry id="vidioc-g-edid"> <refmeta> - <refentrytitle>ioctl VIDIOC_G_EDID, VIDIOC_S_EDID</refentrytitle> + <refentrytitle>ioctl VIDIOC_G_EDID, VIDIOC_S_EDID, VIDIOC_SUBDEV_G_EDID, VIDIOC_SUBDEV_S_EDID</refentrytitle> &manvol; </refmeta> @@ -71,7 +71,8 @@ <para>To get the EDID data the application has to fill in the <structfield>pad</structfield>, <structfield>start_block</structfield>, <structfield>blocks</structfield> and <structfield>edid</structfield> - fields and call <constant>VIDIOC_G_EDID</constant>. The current EDID from block + fields, zero the <structfield>reserved</structfield> array and call + <constant>VIDIOC_G_EDID</constant>. The current EDID from block <structfield>start_block</structfield> and of size <structfield>blocks</structfield> will be placed in the memory <structfield>edid</structfield> points to. The <structfield>edid</structfield> pointer must point to memory at least <structfield>blocks</structfield> * 128 bytes @@ -92,8 +93,9 @@ the driver will set <structfield>blocks</structfield> to 0 and it returns 0.</para> <para>To set the EDID blocks of a receiver the application has to fill in the <structfield>pad</structfield>, - <structfield>blocks</structfield> and <structfield>edid</structfield> fields and set - <structfield>start_block</structfield> to 0. It is not possible to set part of an EDID, + <structfield>blocks</structfield> and <structfield>edid</structfield> fields, set + <structfield>start_block</structfield> to 0 and zero the <structfield>reserved</structfield> array. + It is not possible to set part of an EDID, it is always all or nothing. Setting the EDID data is only valid for receivers as it makes no sense for a transmitter.</para> |