The camera does v4l2

[ab1jx]

I haven't brought myself to install Cheese because it's Gnome.  But I have another USB webcam (which this is) and even in OpenBSD it can do v4l2 (Video For Linux 2).  I'm In Bullseye, I did
modprobe uvcvideo and lsusb shows (maybe it did before):
Bus 002 Device 003: ID 0c45:6321 Microdia HP Integrated Webcam

Installed a few v4l2 things, I don't really know what I'm doing.

Code:

v4l2-ctl --list-devices rockchip,rk3399-vpu-enc (platform: hantro-vpu): /dev/video0 /dev/video1 /dev/media0 rockchip-rga (platform:rga): /dev/video4 USB Camera: USB Camera (usb-fe3c0000.usb-1.2): /dev/video2 /dev/video3 /dev/media1 ------------- v4l2-ctl --all Driver Info: Driver name      : hantro-vpu Card type        : rockchip,rk3399-vpu-enc Bus info        : platform: hantro-vpu Driver version  : 5.7.19 Capabilities    : 0x84204000 Video Memory-to-Memory Multiplanar Streaming Extended Pix Format Device Capabilities Device Caps      : 0x04204000 Video Memory-to-Memory Multiplanar Streaming Extended Pix Format Media Driver Info: Driver name      : hantro-vpu Model            : hantro-vpu Serial          : Bus info        : platform: hantro-vpu Media version    : 5.7.19 Hardware revision: 0x00000000 (0) Driver version  : 5.7.19 Interface Info: ID              : 0x0300000c Type            : V4L Video Entity Info: ID              : 0x00000001 (1) Name            : rockchip,rk3399-vpu-enc-source Function        : V4L2 I/O Pad 0x01000002  : 0: Source   Link 0x02000008: to remote pad 0x1000004 of entity 'rockchip,rk3399-vpu-enc-proc': Data, Enabled, Immutable Priority: 2 Format Video Capture Multiplanar: Width/Height      : 96/32 Pixel Format      : 'JPEG' (JFIF JPEG) Field            : None Number of planes  : 1 Flags            : Colorspace        : JPEG Transfer Function : Default YCbCr/HSV Encoding: Default Quantization      : Default Plane 0          :   Bytes per Line : 0   Size Image    : 6745 Format Video Output Multiplanar: Width/Height      : 96/32 Pixel Format      : 'YM12' (Planar YUV 4:2:0 (N-C)) Field            : None Number of planes  : 3 Flags            : Colorspace        : JPEG Transfer Function : Default YCbCr/HSV Encoding: Default Quantization      : Default Plane 0          :   Bytes per Line : 96   Size Image    : 3072 Plane 1          :   Bytes per Line : 48   Size Image    : 768 Plane 2          :   Bytes per Line : 48   Size Image    : 768 JPEG Compression Controls             compression_quality 0x009d0903 (int)    : min=5 max=100 step=1 default=50 value=50

And

Code:

v4l2-compliance -d /dev/video4 -s v4l2-compliance SHA: not available , 64 bits, 64-bit time_t Compliance test for rockchip-rga device /dev/video4: Driver Info: Driver name      : rockchip-rga Card type        : rockchip-rga Bus info        : platform:rga Driver version  : 5.7.19 Capabilities    : 0x84208000 Video Memory-to-Memory Streaming Extended Pix Format Device Capabilities Device Caps      : 0x04208000 Video Memory-to-Memory Streaming Extended Pix Format Required ioctls: test VIDIOC_QUERYCAP: OK Allow for multiple opens: test second /dev/video4 open: OK test VIDIOC_QUERYCAP: OK test VIDIOC_G/S_PRIORITY: OK test for unlimited opens: OK test invalid ioctls: OK 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 (Not Supported) test VIDIOC_G/S_AUDIO: OK (Not Supported) Inputs: 0 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: 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: 5 Private Controls: 0 Format ioctls: test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK test VIDIOC_G/S_PARM: OK (Not Supported) test VIDIOC_G_FBUF: OK (Not Supported) test VIDIOC_G_FMT: OK test VIDIOC_TRY_FMT: OK fail: v4l2-test-formats.cpp(836): fmt_cap.g_colorspace() != col test VIDIOC_S_FMT: FAIL test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported) test Cropping: OK test Composing: OK test Scaling: OK Codec ioctls: 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: test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK test VIDIOC_EXPBUF: OK test Requests: OK (Not Supported) Test input 0: Streaming ioctls: test read/write: OK (Not Supported) test blocking wait: OK fail: v4l2-test-buffers.cpp(256): g_field() == V4L2_FIELD_ANY fail: v4l2-test-buffers.cpp(1278): buf.qbuf(node) test MMAP (no poll): FAIL fail: v4l2-test-buffers.cpp(256): g_field() == V4L2_FIELD_ANY fail: v4l2-test-buffers.cpp(1278): buf.qbuf(node) test MMAP (select): FAIL fail: v4l2-test-buffers.cpp(256): g_field() == V4L2_FIELD_ANY fail: v4l2-test-buffers.cpp(1278): buf.qbuf(node) test MMAP (epoll): FAIL test USERPTR (no poll): OK (Not Supported) test USERPTR (select): OK (Not Supported) test DMABUF: Cannot test, specify --expbuf-device Total for rockchip-rga device /dev/video4: 52, Succeeded: 48, Failed: 4, Warnings: 0

So it's on /dev/video4 as a device name anyway.