./uvc-gadget -u /dev/video3 -v /dev/video1
V4L2 device is C922 Pro Stream Webcam on bus usb-xhci-hcd.0.auto-1.1
V4L2: Getting current format: YUYV 1280x720
V4L2: Setting format to: YUYV 1280x720
V4L2: Getting current format: YUYV 1280x720
v4l2 open succeeded, file descriptor = 3
uvc device is dwc3-gadget on bus gadget
uvc open succeeded, file descriptor = 4
V4L2: Buffer 0 mapped at address 0x7f908f1000, length 1843200.
V4L2: Buffer 1 mapped at address 0x7f9072f000, length 1843200.
V4L2: 2 buffers allocated.
[  125.665416] g_webcam gadget: super-speed config #1: Video
[  125.670812] g_webcam gadget: uvc_function_set_alt(0, 0)
[  125.676022] g_webcam gadget: reset UVC Control
[  125.680458] g_webcam gadget: uvc_function_set_alt(1, 0)

[  125.687270] g_webcam gadget: uvc_function_set_alt(1, 0)h 0001

control request (req 86 cs 02)

bRequestType a1 bRequest 86 wValue 0200 wIndex 0200 wLength 0001
control request (req 86 cs 02)

bRequestType a1 bRequest 87 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 87 cs 01)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 81 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 81 cs 01)

bRequestType a1 bRequest 87 wValue 0200 wIndex 0200 wLength 0002
control request (req 87 cs 02)

bRequestType a1 bRequest 82 wValue 0200 wIndex 0200 wLength 0002
control request (req 82 cs 02)

bRequestType a1 bRequest 83 wValue 0200 wIndex 0200 wLength 0002
control request (req 83 cs 02)

bRequestType a1 bRequest 84 wValue 0200 wIndex 0200 wLength 0002
control request (req 84 cs 02)

bRequestType a1 bRequest 87 wValue 0200 wIndex 0100 wLength 0001
control request (req 87 cs 02)

bRequestType a1 bRequest 84 wValue 0200 wIndex 0100 wLength 0001
control request (req 84 cs 02)

bRequestType a1 bRequest 81 wValue 0200 wIndex 0200 wLength 0002
control request (req 81 cs 02)

bRequestType a1 bRequest 81 wValue 0200 wIndex 0100 wLength 0001
control request (req 81 cs 02)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 82 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 82 cs 01)

bRequestType a1 bRequest 83 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 83 cs 01)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 81 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 81 cs 01)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 82 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 82 cs 01)

bRequestType a1 bRequest 83 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 83 cs 01)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 81 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 81 cs 01)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 82 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 82 cs 01)

bRequestType a1 bRequest 83 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 83 cs 01)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 81 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 81 cs 01)

bRequestType 21 bRequest 01 wValue 0200 wIndex 0001 wLength 001a[  153.597050] g_webcam gadget: uvc_function_set_alt(1, 1)
[  153.606632] g_webcam gadget: reset UVC

streaming request (req 01 cs 02)
setting commit control, length = 26
UVC: 2 buffers allocated.
V4L2: Starting video stream.
Dequeueing buffer at V4L2 side = 0
Queueing buffer at UVC side = 0
UVC: Starting video stream.
[  154.178566] VS request completed with status -18.
[  154.183266] VS request completed with status -18.
[  154.188266] VS request completed with status -18.
[  154.192957] VS request completed with status -18.
Dequeueing buffer at V4L2 side = 1
Queueing buffer at UVC side = 1
DeQ[  154.268327] VS request completed with status -18.
[  154.278519] VS request completed with status -18.
ueued buffer at UVC side=0
UVC: Possible USB shutdown requested fr[  154.283650] VS request completed with status -18.
[  154.293723] VS request completed with status -18.
om Host, seen during VIDIOC_DQBUF
DeQueued buffer at UVC side=1
UVC: Possible USB shutdown requested from Host, seen during VIDIOC_DQBUF
[  155.179897] g_webcam gadget: uvc_function_set_alt(1, 0)
[  155.397966] dwc3 fe200000.dwc3: request 00000000a6c0a102 was not queued to ep2in
[  155.405371] dwc3 fe200000.dwc3: request 000000007ecb2d28 was not queued to ep2in
[  155.412768] dwc3 fe200000.dwc3: request 00000000a05e7ef4 was not queued to ep2in
[  155.420161] dwc3 fe200000.dwc3: request 000000005b63a9da was not queued to ep2in
UVC: Stopping video stream.

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLeng[  155.430702] g_webcam gadget: uvc_function_set_alt(1, 1)
[  155.440559] g_webcam gadget: reset UVC
th 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 82 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 82 cs 01)

bRequestType a1 bRequest 83 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 83 cs 01)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 81 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 81 cs 01)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 82 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 82 cs 01)

bRequestType a1 bRequest 83 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 83 cs 01)

bRequestType 21 bRequest 01 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 01 cs 01)
setting probe control, length = 26

bRequestType a1 bRequest 81 wValue 0100 wIndex 0001 wLength 001a
streaming request (req 81 cs 01)

bRequestType 21 bRequest 01 wValue 0200 wIndex 0001 wLength 001a
streaming request (req 01 cs 02)
setting commit control, length = 26
UVC: 2 buffers allocated.
V4L2: Starting video stream.
Dequeueing buffer at V4L2 side = 0
Queueing buffer at UVC side = 0
UV[  155.858998] VS request completed with status -18.
[  155.867741] VS request completed with status -18.
C: Starting video stream.
[  155.872828] VS request completed with status -18.
[  155.879472] VS request completed with status -18.
Dequeueing buffer at V4L2 side = 1
Queueing buffer at UVC side = 1
DeQ[  155.959129] VS request completed with status -18.
[  155.969358] VS request completed with status -18.
ueued buffer at UVC side=0
UVC: Possible USB shutdown requested [  155.974502] VS request completed with status -18.
[  155.984387] VS request completed with status -18.
from Host, seen during VIDIOC_DQBUF
DeQueued buffer at UVC side=1
UVC: Possible USB shutdown requested from Host, seen during VIDIOC_DQBUF
select timeout
[  161.189592] dwc3 fe200000.dwc3: request 000000007ecb2d28 was not queued to ep2in
[  161.197002] dwc3 fe200000.dwc3: request 00000000a6c0a102 was not queued to ep2in
[  161.204396] dwc3 fe200000.dwc3: request 000000009878d670 was not queued to ep2in
[  161.211793] dwc3 fe200000.dwc3: request 00000000b1d740e6 was not queued to ep2in
UVC: Stopping video stream.