Test result of v4l2-compliance

u@u-XPS-9320:~$ v4l2-compliance 
v4l2-compliance 1.22.1, 64 bits, 64-bit time_t

Compliance test for v4l2 loopback device /dev/video0:

Driver Info:
	Driver name      : v4l2 loopback
	Card type        : Intel MIPI Camera
	Bus info         : platform:v4l2loopback-000
	Driver version   : 5.19.17
	Capabilities     : 0x85200001
		Video Capture
		Read/Write
		Streaming
		Extended Pix Format
		Device Capabilities
	Device Caps      : 0x05200001
		Video Capture
		Read/Write
		Streaming
		Extended Pix Format

Required ioctls:
	test VIDIOC_QUERYCAP: OK
	test invalid ioctls: OK

Allow for multiple opens:
	test second /dev/video0 open: OK
	test VIDIOC_QUERYCAP: OK
	test VIDIOC_G/S_PRIORITY: OK
		fail: v4l2-compliance.cpp(736): !ok
	test for unlimited opens: FAIL

Debug ioctls:
	test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
	test VIDIOC_LOG_STATUS: OK (Not Supported)

Input ioctls:
	test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
	test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
	test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
	test VIDIOC_ENUMAUDIO: OK (Not Supported)
	test VIDIOC_G/S/ENUMINPUT: OK
	test VIDIOC_G/S_AUDIO: OK (Not Supported)
	Inputs: 1 Audio Inputs: 0 Tuners: 0

Output ioctls:
	test VIDIOC_G/S_MODULATOR: OK (Not Supported)
	test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
	test VIDIOC_ENUMAUDOUT: OK (Not Supported)
	test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
	test VIDIOC_G/S_AUDOUT: OK (Not Supported)
	Outputs: 0 Audio Outputs: 0 Modulators: 0

Input/Output configuration ioctls:
	test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
	test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
	test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
	test VIDIOC_G/S_EDID: OK (Not Supported)

Control ioctls (Input 0):
	test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
	test VIDIOC_QUERYCTRL: OK
	test VIDIOC_G/S_CTRL: OK
	test VIDIOC_G/S/TRY_EXT_CTRLS: OK
	test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
	test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
	Standard Controls: 1 Private Controls: 4

Format ioctls (Input 0):
		fail: v4l2-test-formats.cpp(327): Video Output cap not set, but Video Output formats defined
	test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL
		fail: v4l2-test-formats.cpp(1290): node->has_frmintervals && !cap->capability
	test VIDIOC_G/S_PARM: FAIL
	test VIDIOC_G_FBUF: OK (Not Supported)
		fail: v4l2-test-formats.cpp(623): Video Output cap not set, but Video Output formats defined
	test VIDIOC_G_FMT: FAIL
		warn: v4l2-test-formats.cpp(784): TRY_FMT cannot handle an invalid pixelformat.
		warn: v4l2-test-formats.cpp(785): This may or may not be a problem. For more information see:
		warn: v4l2-test-formats.cpp(786): http://<email address hidden>/msg56550.html
	test VIDIOC_TRY_FMT: OK
		warn: v4l2-test-formats.cpp(1147): S_FMT cannot handle an invalid pixelformat.
		warn: v4l2-test-formats.cpp(1148): This may or may not be a problem. For more information see:
		warn: v4l2-test-formats.cpp(1149): http://<email address hidden>/msg56550.html
	test VIDIOC_S_FMT: OK
	test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
	test Cropping: OK (Not Supported)
	test Composing: OK (Not Supported)
	test Scaling: OK (Not Supported)

Codec ioctls (Input 0):
	test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
	test VIDIOC_G_ENC_INDEX: OK (Not Supported)
	test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)

Buffer ioctls (Input 0):
		fail: v4l2-test-buffers.cpp(355): timestamp != V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC && timestamp != V4L2_BUF_FLAG_TIMESTAMP_COPY
		fail: v4l2-test-buffers.cpp(483): buf.check(Unqueued, i)
		fail: v4l2-test-buffers.cpp(612): testQueryBuf(node, i, q.g_buffers())
	test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
	test VIDIOC_EXPBUF: OK (Not Supported)
	test Requests: OK (Not Supported)

Total for v4l2 loopback device /dev/video0: 45, Succeeded: 40, Failed: 5, Warnings: 6