test: v4l2_m2mdevice: Test control enumeration

Verify that the V4L2M2MDevice correctly enumerates controls supported by
the device. The test currently fails, and will be fixed by a subsequent
patch.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Xavier Roumegue <xavier.roumegue@oss.nxp.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/test/v4l2_videodevice/v4l2_m2mdevice.cpp b/test/v4l2_videodevice/v4l2_m2mdevice.cpp
index 852b853f..c45f581a 100644
--- a/test/v4l2_videodevice/v4l2_m2mdevice.cpp
+++ b/test/v4l2_videodevice/v4l2_m2mdevice.cpp
@@ -95,6 +95,11 @@ protected:
 		V4L2VideoDevice *capture = vim2m_->capture();
 		V4L2VideoDevice *output = vim2m_->output();
 
+		if (capture->controls().empty() || output->controls().empty()) {
+			cerr << "VIM2M device has no control" << endl;
+			return TestFail;
+		}
+
 		V4L2DeviceFormat format = {};
 		if (capture->getFormat(&format)) {
 			cerr << "Failed to get capture format" << endl;