commit ef37bb48bc6093c218271cf49ff063f57b6f0207
author Tuukka Pasanen <tuukka.pasanen@ilmi.fi> Thu Feb 16 12:59:10 2012 +0000
committer Tim-Philipp Müller <tim.muller@collabora.co.uk> Thu Feb 16 12:59:10 2012 +0000
tree 5eb60986c8d197fefb49ee53c8dca598f9563a0d
parent 71477a3eac1351869f81296400c3a576add4de28

v4l2src: fix for webcamstudio vloopback

Because vlooback emits 25 - ENOTTY and no EINVAL v4l2src thought it
can't handle this and does not work.

https://bugzilla.gnome.org/show_bug.cgi?id=669455

sys/v4l2/v4l2_calls.c

diff --git a/sys/v4l2/v4l2_calls.c b/sys/v4l2/v4l2_calls.c
index 3808d8e..c8af0a6 100644
--- a/sys/v4l2/v4l2_calls.c
+++ b/sys/v4l2/v4l2_calls.c
@@ -253,7 +253,7 @@
 
     control.id = n;
     if (v4l2_ioctl (v4l2object->video_fd, VIDIOC_QUERYCTRL, &control) < 0) {
-      if (errno == EINVAL) {
+      if (errno == EINVAL || errno == ENOTTY) {
         if (n < V4L2_CID_PRIVATE_BASE) {
           GST_DEBUG_OBJECT (e, "skipping control %08x", n);
           /* continue so that we also check private controls */