The most likely error you will get when calling VIDIOC_QUERYCAP for a
device node that does not support it is ENOTTY, not EINVAL.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
Documentation/DocBook/media/v4l/vidioc-querycap.xml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/DocBook/media/v4l/vidioc-querycap.xml b/Documentation/DocBook/media/v4l/vidioc-querycap.xml
index 20fda75..131abca 100644
--- a/Documentation/DocBook/media/v4l/vidioc-querycap.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-querycap.xml
@@ -54,7 +54,7 @@ kernel devices compatible with this specification and to obtain
information about driver and hardware capabilities. The ioctl takes a
pointer to a &v4l2-capability; which is filled by the driver. When the
driver is not compatible with this specification the ioctl returns an
-&EINVAL;.</para>
+error, most likely the &ENOTTY;.</para>
<table pgwide="1" frame="none" id="v4l2-capability">
<title>struct <structname>v4l2_capability</structname></title>
--
2.1.4
--
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