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path: root/drivers/media/video/cx18/cx18-streams.c
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Diffstat (limited to 'drivers/media/video/cx18/cx18-streams.c')
-rw-r--r--drivers/media/video/cx18/cx18-streams.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index c7d431f4923..e6d808f7cc8 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -595,3 +595,21 @@ u32 cx18_find_handle(struct cx18 *cx)
}
return CX18_INVALID_TASK_HANDLE;
}
+
+struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle)
+{
+ int i;
+ struct cx18_stream *s;
+
+ if (handle == CX18_INVALID_TASK_HANDLE)
+ return NULL;
+
+ for (i = 0; i < CX18_MAX_STREAMS; i++) {
+ s = &cx->streams[i];
+ if (s->handle != handle)
+ continue;
+ if (s->v4l2dev || s->dvb.enabled)
+ return s;
+ }
+ return NULL;
+}