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[media] v4l2: drop V4L2_CHIP_MATCH_SUBDEV_NAME

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After using the new VIDIOC_DBG_G_CHIP_NAME ioctl I realized that the matching
by name possibility is useless. Just drop it and rename MATCH_SUBDEV_IDX to
just MATCH_SUBDEV.
The v4l2-dbg utility is much better placed to match by name by just enumerating
all bridge and subdev devices until chip_name.name matches.

Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Hans Verkuil 2013-04-03 04:08:19 -03:00 • committed by Mauro Carvalho Chehab
commit 3eef25107c
6 changed files with 26 additions and 77 deletions
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7
Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-ident.xml
View file

@ -221,13 +221,8 @@ the values from <xref linkend="chip-ids" />.</entry>
<entry>Match the nth anciliary AC97 chip.</entry>
</row>
<row>
<entry><constant>V4L2_CHIP_MATCH_SUBDEV_NAME</constant></entry>
<entry><constant>V4L2_CHIP_MATCH_SUBDEV</constant></entry>
<entry>4</entry>
<entry>Match the sub-device by name. Can't be used with this ioctl.</entry>
</row>
<row>
<entry><constant>V4L2_CHIP_MATCH_SUBDEV_IDX</constant></entry>
<entry>5</entry>
<entry>Match the nth sub-device. Can't be used with this ioctl.</entry>
</row>
</tbody>

18
Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-name.xml
View file

@ -87,16 +87,7 @@ connected to the PCI or USB bus. Non-zero numbers identify specific
parts of the bridge chip such as an AC97 register block.</para>
<para>When <structfield>match.type</structfield> is
<constant>V4L2_CHIP_MATCH_SUBDEV_NAME</constant>,
<structfield>match.name</structfield> contains the name of a sub-device.
For instance
<constant>"saa7127 6-0044"</constant> will match the saa7127 sub-device
at the given i2c bus. This match type is not very useful for this ioctl
and is here only for consistency.
</para>
<para>When <structfield>match.type</structfield> is
<constant>V4L2_CHIP_MATCH_SUBDEV_IDX</constant>,
<constant>V4L2_CHIP_MATCH_SUBDEV</constant>,
<structfield>match.addr</structfield> selects the nth sub-device. This
allows you to enumerate over all sub-devices.</para>
@ -207,13 +198,8 @@ is set, then the driver supports reading registers from the device. If
<entry>Match the nth anciliary AC97 chip. Can't be used with this ioctl.</entry>
</row>
<row>
<entry><constant>V4L2_CHIP_MATCH_SUBDEV_NAME</constant></entry>
<entry><constant>V4L2_CHIP_MATCH_SUBDEV</constant></entry>
<entry>4</entry>
<entry>Match the sub-device by name.</entry>
</row>
<row>
<entry><constant>V4L2_CHIP_MATCH_SUBDEV_IDX</constant></entry>
<entry>5</entry>
<entry>Match the nth sub-device.</entry>
</row>
</tbody>

17
Documentation/DocBook/media/v4l/vidioc-dbg-g-register.xml
View file

@ -123,15 +123,7 @@ bus address.</para>
on the TV card.</para>
<para>When <structfield>match.type</structfield> is
<constant>V4L2_CHIP_MATCH_SUBDEV_NAME</constant>,
<structfield>match.name</structfield> contains the sub-device name.
For instance
<constant>"saa7127 6-0044"</constant> will match this specific saa7127
sub-device. Again with the &VIDIOC-DBG-G-CHIP-NAME; ioctl you can find
out which sub-devices are present.</para>
<para>When <structfield>match.type</structfield> is
<constant>V4L2_CHIP_MATCH_SUBDEV_IDX</constant>,
<constant>V4L2_CHIP_MATCH_SUBDEV</constant>,
<structfield>match.addr</structfield> selects the nth sub-device.</para>
<note>
@ -250,13 +242,8 @@ register.</entry>
<entry>Match the nth anciliary AC97 chip.</entry>
</row>
<row>
<entry><constant>V4L2_CHIP_MATCH_SUBDEV_NAME</constant></entry>
<entry><constant>V4L2_CHIP_MATCH_SUBDEV</constant></entry>
<entry>4</entry>
<entry>Match the sub-device by name.</entry>
</row>
<row>
<entry><constant>V4L2_CHIP_MATCH_SUBDEV_IDX</constant></entry>
<entry>5</entry>
<entry>Match the nth sub-device.</entry>
</row>
</tbody>