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-rw-r--r--Documentation/DocBook/v4l/media-ioc-enum-links.xml5
-rw-r--r--Documentation/DocBook/v4l/media-ioc-setup-link.xml3
2 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/DocBook/v4l/media-ioc-enum-links.xml b/Documentation/DocBook/v4l/media-ioc-enum-links.xml
index 6da884159ca..d2fc73ef8d5 100644
--- a/Documentation/DocBook/v4l/media-ioc-enum-links.xml
+++ b/Documentation/DocBook/v4l/media-ioc-enum-links.xml
@@ -179,6 +179,11 @@
<entry>The link enabled state can't be modified at runtime. An
immutable link is always enabled.</entry>
</row>
+ <row>
+ <entry><constant>MEDIA_LNK_FL_DYNAMIC</constant></entry>
+ <entry>The link enabled state can be modified during streaming. This
+ flag is set by drivers and is read-only for applications.</entry>
+ </row>
</tbody>
</tgroup>
</table>
diff --git a/Documentation/DocBook/v4l/media-ioc-setup-link.xml b/Documentation/DocBook/v4l/media-ioc-setup-link.xml
index 09ab3d2b3a5..2331e76ded1 100644
--- a/Documentation/DocBook/v4l/media-ioc-setup-link.xml
+++ b/Documentation/DocBook/v4l/media-ioc-setup-link.xml
@@ -60,6 +60,9 @@
<para>Link configuration has no side effect on other links. If an enabled
link at the sink pad prevents the link from being enabled, the driver
returns with an &EBUSY;.</para>
+ <para>Only links marked with the <constant>DYNAMIC</constant> link flag can
+ be enabled/disabled while streaming media data. Attempting to enable or
+ disable a streaming non-dynamic link will return an &EBUSY;.</para>
<para>If the specified link can't be found the driver returns with an
&EINVAL;.</para>
</refsect1>