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V4L/DVB: V4L2 Spec: fix V4L2_CTRL_TYPE_CTRL_CLASS documentation 

The spec says that the control ID for these types of controls is the same
as that of the control class. But it should read: 'control class + 1'.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2010-04-06 06:41:28 -03:00 committed by Mauro Carvalho Chehab
parent 2b080c5df0
commit 860553023b
1 changed files with 1 additions and 1 deletions
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Documentation/DocBook/v4l/vidioc-queryctrl.xml
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@ -325,7 +325,7 @@ should be part of the control documentation.</entry>
<entry>n/a</entry> <entry>n/a</entry>
<entry>This is not a control. When <entry>This is not a control. When
<constant>VIDIOC_QUERYCTRL</constant> is called with a control ID <constant>VIDIOC_QUERYCTRL</constant> is called with a control ID
equal to a control class code (see <xref linkend="ctrl-class" />), the equal to a control class code (see <xref linkend="ctrl-class" />) + 1, the
ioctl returns the name of the control class and this control type. ioctl returns the name of the control class and this control type.
Older drivers which do not support this feature return an Older drivers which do not support this feature return an
&EINVAL;.</entry> &EINVAL;.</entry>