Re: [PATCH v5 0/5] media: add virtio-media driver
Brian Daniels <[email protected]> Tue, 4 Aug 2026 12:08:28 -0400
| Newsgroups | dev.linux.lists.virtualization,org.kernel.vger.linux-kernel,org.kernel.vger.linux-media |
|---|---|
| Message-ID | <CAD4i_GTePbaBeJDkB_4r-UCxmD_5fM5wjwiedEk87csHwKmR3w@mail.gmail.com> |
On Tue, Aug 4, 2026 at 8:29=E2=80=AFAM Albert Esteve <[email protected]> w= rote: > > Hi Brian, > > On Thu, Jul 23, 2026 at 8:32=E2=80=AFPM Brian Daniels <briandaniels@googl= e.com> wrote: > > > > From: Alexandre Courbot <[email protected]> > > > > Add the first version of the virtio-media driver. > > > > This driver acts roughly as a V4L2 relay between user-space and the > > virtio virtual device on the host, so it is relatively simple, yet > > unconventional. It doesn't use VB2 or other frameworks typically used i= n > > a V4L2 driver, and most of its complexity resides in correctly and > > efficiently building the virtio descriptor chain to pass to the host, > > avoiding copies whenever possible. This is done by > > scatterlist_builder.[ch]. > > > > This version supports MMAP buffers, while USERPTR buffers can also be > > enabled through a driver option. DMABUF support is still pending. > > > > NOTE: This depends on the VIRTIO ID being added in this patch: > > https://lore.kernel.org/all/20260310-virtio-media-id-v1-1-be211bcf682b@= redhat.com > > Tested on top of [1], with the rust-vmm backend [2], and QEMU patch > adding the pci device [3]. > > In the guest I have enabled allow_userptr parameter and tested video > capture both with mmap and userptr memory types. Both worked perfectly > fine. > > I also tested v4l2-compliance, with results similar to those pasted > below. The summary shows: > > Total for virtio-media device /dev/video0: 56, Succeeded: 54, > Failed: 2, Warnings: 0 > > The additional failed test with respect to the results shown in the > cover seems to be `VIDIOC_G/S/TRY_EXT_CTRLS`, where s_ctrl returned > error 13. Nevertheless, the results are in line with my expectations, > specially with the camera capture tests, so: > > Tested-by: Albert Esteve <[email protected]> > > [1] https://lore.kernel.org/all/20260310-virtio-media-id-v1-1-be211bcf682= [email protected] > [2] https://github.com/rust-vmm/vhost-device/tree/main/vhost-device-media > [3] https://lore.kernel.org/all/[email protected]= m/ > > BR, > Albert. Hi Albert, Thanks so much for testing and sharing your results, glad to hear everything is working. Regarding the `VIDIOC_G/S/TRY_EXT_CTRLS` failures, if you were testing with a passed-through USB camera, I saw the same failures as well. This behavior depends on how v4l2-compliance changes its logic based on the device's driver name. I expect this test will pass on the host, and that's because v4l2-compliance reads the device's driver name as `uvcvideo`. In the guest, since it's beeing passed-through by virtio-media, the driver name is `virtio-media`, and thus v4l2-compliance doesn't change its logic, causing the failure. I worked around this by patching v4l2-compliance to allow overriding the device's driver name: https://lore.kernel.org/all/[email protected]= m/. There are more details in [PATCH v5 0/5] of this series if you're curious: https://lore.kernel.org/all/20260723183219.737296-1-briandaniels@g= oogle.com/ Thanks again, Brian > > > > Signed-off-by: Alexandre Courbot <[email protected]> > > Co-developed-by: Brian Daniels <[email protected]> > > Signed-off-by: Brian Daniels <[email protected]> > > --- > > Guest Setup > > > > Tests were ran on a Debian 12 guest running with crosvm. The guest imag= e > > was created with: > > > > $ virt-builder debian-12 --root-password password:"" > > > > Build crosvm and launch the guest starting at the "Crosvm" section on > > this page: https://github.com/chromeos/virtio-media/blob/main/TRY_IT_OU= T.md#crosvm > > > > NOTE: Before running v4l2-compliance in the guest, you need to install > > v4l-utils and ffmpeg: > > > > $ apt update && apt install v4l-utils ffmpeg > > > > --- > > Compliance Testing > > > > This was tested using v4l2-compliance. Since virtio-media serves as > > a proxy to host devices for the guest VMs, we expect the guest > > compliance test to essentially match the host compliance test for the > > same device. > > > > NOTE: v4l2-compliance changes its test behavior depending on the driver > > name. In the guest, the driver name for virtio-media proxied-devices is > > always "virtio-media", even if the actual host device has a driver name > > of e.g. "uvcvideo". To ensure the test is consistent between the host > > and the guest, I created a patch for the v4l2-compliance tool that > > allows you to override the driver name. All test results that follow us= e > > this patch: > > https://lore.kernel.org/r/20260528163448.4031965-1-briandaniels@google.= com/ > > > > All tests used a Logitech USB Webcam C925e. > > > > As tested on the host: > > > > $ v4l2-compliance -d1 -s > > > > v4l2-compliance 1.33.0-5471, 64 bits, 64-bit time_t > > v4l2-compliance SHA: 9f2d3ea879ff 2026-05-28 14:45:11 > > > > Compliance test for uvcvideo device /dev/video1: > > > > Driver Info: > > Driver name : uvcvideo > > Card type : Logitech Webcam C925e > > Bus info : usb-0000:04:00.1-3 > > Driver version : 6.18.14 > > Capabilities : 0x84a00001 > > Video Capture > > Metadata Capture > > Streaming > > Extended Pix Format > > Device Capabilities > > Device Caps : 0x04200001 > > Video Capture > > Streaming > > Extended Pix Format > > Media Driver Info: > > Driver name : uvcvideo > > Model : Logitech Webcam C925e > > Serial : 686F371F > > Bus info : usb-0000:04:00.1-3 > > Media version : 6.18.14 > > Hardware revision: 0x00000016 (22) > > Driver version : 6.18.14 > > Interface Info: > > ID : 0x03000002 > > Type : V4L Video > > Entity Info: > > ID : 0x00000001 (1) > > Name : Logitech Webcam C925e > > Function : V4L2 I/O > > Flags : default > > Pad 0x01000007 : 0: Sink > > Link 0x0200001f: from remote pad 0x100000a of entity 'Process= ing 3' (Video Pixel Formatter): Data, Enabled, Immutable > > > > Required ioctls: > > test MC information (see 'Media Driver Info' above): OK > > test VIDIOC_QUERYCAP: OK > > test invalid ioctls: OK > > > > Allow for multiple opens: > > test second /dev/video1 open: OK > > test VIDIOC_QUERYCAP: OK > > test VIDIOC_G/S_PRIORITY: OK > > test for unlimited opens: 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 > > 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 > > fail: v4l2-test-controls.cpp(983): ret !=3D EINVAL (got= 13) > > test VIDIOC_G/S/TRY_EXT_CTRLS: FAIL > > test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK > > test VIDIOC_G/S_JPEGCOMP: OK (Not Supported) > > Standard Controls: 19 Private Controls: 0 > > > > Format ioctls (Input 0): > > test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK > > test VIDIOC_G/S_PARM: OK > > test VIDIOC_G_FBUF: OK (Not Supported) > > test VIDIOC_G_FMT: OK > > test VIDIOC_TRY_FMT: OK > > 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): > > test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK > > test CREATE_BUFS maximum buffers: OK > > test VIDIOC_REMOVE_BUFS: OK > > test VIDIOC_EXPBUF: OK > > test Requests: OK (Not Supported) > > test blocking wait: OK > > > > Test input 0: > > > > Streaming ioctls: > > test read/write: OK (Not Supported) > > > > Video Capture: Frame #000 > > Video Capture: Frame #001 > > Video Capture: Frame #002 > > Video Capture: Frame #003 > > Video Capture: Frame #004 > > Video Capture: Frame #005 > > Video Capture: Frame #006 > > Video Capture: Frame #007 > > Video Capture: Frame #008 > > Video Capture: Frame #009 > > Video Capture: Frame #010 > > Video Capture: Frame #011 > > Video Capture: Frame #012 > > Video Capture: Frame #013 > > Video Capture: Frame #014 > > Video Capture: Frame #015 > > Video Capture: Frame #016 > > Video Capture: Frame #017 > > Video Capture: Frame #018 > > Video Capture: Frame #019 > > Video Capture: Frame #020 > > Video Capture: Frame #021 > > Video Capture: Frame #022 > > Video Capture: Frame #023 > > Video Capture: Frame #024 > > Video Capture: Frame #025 > > Video Capture: Frame #026 > > Video Capture: Frame #027 > > Video Capture: Frame #028 > > Video Capture: Frame #029 > > Video Capture: Frame #030 > > Video Capture: Frame #031 > > Video Capture: Frame #032 > > Video Capture: Frame #033 > > Video Capture: Frame #034 > > Video Capture: Frame #035 > > Video Capture: Frame #036 > > Video Capture: Frame #037 > > Video Capture: Frame #038 > > Video Capture: Frame #039 > > Video Capture: Frame #040 > > Video Capture: Frame #041 > > Video Capture: Frame #042 > > Video Capture: Frame #043 > > Video Capture: Frame #044 > > Video Capture: Frame #045 > > Video Capture: Frame #046 > > Video Capture: Frame #047 > > Video Capture: Frame #048 > > Video Capture: Frame #049 > > Video Capture: Frame #050 > > Video Capture: Frame #051 > > Video Capture: Frame #052 > > Video Capture: Frame #053 > > Video Capture: Frame #054 > > Video Capture: Frame #055 > > Video Capture: Frame #056 > > Video Capture: Frame #057 > > Video Capture: Frame #058 > > Video Capture: Frame #059 > > > > test MMAP (no poll, REQBUFS): OK > > > > Video Capture: Frame #000 (select) > > Video Capture: Frame #001 (select) > > Video Capture: Frame #002 (select) > > Video Capture: Frame #003 (select) > > Video Capture: Frame #004 (select) > > Video Capture: Frame #005 (select) > > Video Capture: Frame #006 (select) > > Video Capture: Frame #007 (select) > > Video Capture: Frame #008 (select) > > Video Capture: Frame #009 (select) > > Video Capture: Frame #010 (select) > > Video Capture: Frame #011 (select) > > Video Capture: Frame #012 (select) > > Video Capture: Frame #013 (select) > > Video Capture: Frame #014 (select) > > Video Capture: Frame #015 (select) > > Video Capture: Frame #016 (select) > > Video Capture: Frame #017 (select) > > Video Capture: Frame #018 (select) > > Video Capture: Frame #019 (select) > > Video Capture: Frame #020 (select) > > Video Capture: Frame #021 (select) > > Video Capture: Frame #022 (select) > > Video Capture: Frame #023 (select) > > Video Capture: Frame #024 (select) > > Video Capture: Frame #025 (select) > > Video Capture: Frame #026 (select) > > Video Capture: Frame #027 (select) > > Video Capture: Frame #028 (select) > > Video Capture: Frame #029 (select) > > Video Capture: Frame #030 (select) > > Video Capture: Frame #031 (select) > > Video Capture: Frame #032 (select) > > Video Capture: Frame #033 (select) > > Video Capture: Frame #034 (select) > > Video Capture: Frame #035 (select) > > Video Capture: Frame #036 (select) > > Video Capture: Frame #037 (select) > > Video Capture: Frame #038 (select) > > Video Capture: Frame #039 (select) > > Video Capture: Frame #040 (select) > > Video Capture: Frame #041 (select) > > Video Capture: Frame #042 (select) > > Video Capture: Frame #043 (select) > > Video Capture: Frame #044 (select) > > Video Capture: Frame #045 (select) > > Video Capture: Frame #046 (select) > > Video Capture: Frame #047 (select) > > Video Capture: Frame #048 (select) > > Video Capture: Frame #049 (select) > > Video Capture: Frame #050 (select) > > Video Capture: Frame #051 (select) > > Video Capture: Frame #052 (select) > > Video Capture: Frame #053 (select) > > Video Capture: Frame #054 (select) > > Video Capture: Frame #055 (select) > > Video Capture: Frame #056 (select) > > Video Capture: Frame #057 (select) > > Video Capture: Frame #058 (select) > > Video Capture: Frame #059 (select) > > > > test MMAP (select, REQBUFS): OK > > > > Video Capture: Frame #000 (epoll) > > Video Capture: Frame #001 (epoll) > > Video Capture: Frame #002 (epoll) > > Video Capture: Frame #003 (epoll) > > Video Capture: Frame #004 (epoll) > > Video Capture: Frame #005 (epoll) > > Video Capture: Frame #006 (epoll) > > Video Capture: Frame #007 (epoll) > > Video Capture: Frame #008 (epoll) > > Video Capture: Frame #009 (epoll) > > Video Capture: Frame #010 (epoll) > > Video Capture: Frame #011 (epoll) > > Video Capture: Frame #012 (epoll) > > Video Capture: Frame #013 (epoll) > > Video Capture: Frame #014 (epoll) > > Video Capture: Frame #015 (epoll) > > Video Capture: Frame #016 (epoll) > > Video Capture: Frame #017 (epoll) > > Video Capture: Frame #018 (epoll) > > Video Capture: Frame #019 (epoll) > > Video Capture: Frame #020 (epoll) > > Video Capture: Frame #021 (epoll) > > Video Capture: Frame #022 (epoll) > > Video Capture: Frame #023 (epoll) > > Video Capture: Frame #024 (epoll) > > Video Capture: Frame #025 (epoll) > > Video Capture: Frame #026 (epoll) > > Video Capture: Frame #027 (epoll) > > Video Capture: Frame #028 (epoll) > > Video Capture: Frame #029 (epoll) > > Video Capture: Frame #030 (epoll) > > Video Capture: Frame #031 (epoll) > > Video Capture: Frame #032 (epoll) > > Video Capture: Frame #033 (epoll) > > Video Capture: Frame #034 (epoll) > > Video Capture: Frame #035 (epoll) > > Video Capture: Frame #036 (epoll) > > Video Capture: Frame #037 (epoll) > > Video Capture: Frame #038 (epoll) > > Video Capture: Frame #039 (epoll) > > Video Capture: Frame #040 (epoll) > > Video Capture: Frame #041 (epoll) > > Video Capture: Frame #042 (epoll) > > Video Capture: Frame #043 (epoll) > > Video Capture: Frame #044 (epoll) > > Video Capture: Frame #045 (epoll) > > Video Capture: Frame #046 (epoll) > > Video Capture: Frame #047 (epoll) > > Video Capture: Frame #048 (epoll) > > Video Capture: Frame #049 (epoll) > > Video Capture: Frame #050 (epoll) > > Video Capture: Frame #051 (epoll) > > Video Capture: Frame #052 (epoll) > > Video Capture: Frame #053 (epoll) > > Video Capture: Frame #054 (epoll) > > Video Capture: Frame #055 (epoll) > > Video Capture: Frame #056 (epoll) > > Video Capture: Frame #057 (epoll) > > Video Capture: Frame #058 (epoll) > > Video Capture: Frame #059 (epoll) > > > > test MMAP (epoll, REQBUFS): OK > > > > Video Capture: Frame #000 > > Video Capture: Frame #001 > > Video Capture: Frame #002 > > Video Capture: Frame #003 > > Video Capture: Frame #004 > > Video Capture: Frame #005 > > Video Capture: Frame #006 > > Video Capture: Frame #007 > > Video Capture: Frame #008 > > Video Capture: Frame #009 > > Video Capture: Frame #010 > > Video Capture: Frame #011 > > Video Capture: Frame #012 > > Video Capture: Frame #013 > > Video Capture: Frame #014 > > Video Capture: Frame #015 > > Video Capture: Frame #016 > > Video Capture: Frame #017 > > Video Capture: Frame #018 > > Video Capture: Frame #019 > > Video Capture: Frame #020 > > Video Capture: Frame #021 > > Video Capture: Frame #022 > > Video Capture: Frame #023 > > Video Capture: Frame #024 > > Video Capture: Frame #025 > > Video Capture: Frame #026 > > Video Capture: Frame #027 > > Video Capture: Frame #028 > > Video Capture: Frame #029 > > Video Capture: Frame #030 > > Video Capture: Frame #031 > > Video Capture: Frame #032 > > Video Capture: Frame #033 > > Video Capture: Frame #034 > > Video Capture: Frame #035 > > Video Capture: Frame #036 > > Video Capture: Frame #037 > > Video Capture: Frame #038 > > Video Capture: Frame #039 > > Video Capture: Frame #040 > > Video Capture: Frame #041 > > Video Capture: Frame #042 > > Video Capture: Frame #043 > > Video Capture: Frame #044 > > Video Capture: Frame #045 > > Video Capture: Frame #046 > > Video Capture: Frame #047 > > Video Capture: Frame #048 > > Video Capture: Frame #049 > > Video Capture: Frame #050 > > Video Capture: Frame #051 > > Video Capture: Frame #052 > > Video Capture: Frame #053 > > Video Capture: Frame #054 > > Video Capture: Frame #055 > > Video Capture: Frame #056 > > Video Capture: Frame #057 > > Video Capture: Frame #058 > > Video Capture: Frame #059 > > > > test MMAP (no poll, CREATE_BUFS): OK > > > > Video Capture: Frame #000 (select) > > Video Capture: Frame #001 (select) > > Video Capture: Frame #002 (select) > > Video Capture: Frame #003 (select) > > Video Capture: Frame #004 (select) > > Video Capture: Frame #005 (select) > > Video Capture: Frame #006 (select) > > Video Capture: Frame #007 (select) > > Video Capture: Frame #008 (select) > > Video Capture: Frame #009 (select) > > Video Capture: Frame #010 (select) > > Video Capture: Frame #011 (select) > > Video Capture: Frame #012 (select) > > Video Capture: Frame #013 (select) > > Video Capture: Frame #014 (select) > > Video Capture: Frame #015 (select) > > Video Capture: Frame #016 (select) > > Video Capture: Frame #017 (select) > > Video Capture: Frame #018 (select) > > Video Capture: Frame #019 (select) > > Video Capture: Frame #020 (select) > > Video Capture: Frame #021 (select) > > Video Capture: Frame #022 (select) > > Video Capture: Frame #023 (select) > > Video Capture: Frame #024 (select) > > Video Capture: Frame #025 (select) > > Video Capture: Frame #026 (select) > > Video Capture: Frame #027 (select) > > Video Capture: Frame #028 (select) > > Video Capture: Frame #029 (select) > > Video Capture: Frame #030 (select) > > Video Capture: Frame #031 (select) > > Video Capture: Frame #032 (select) > > Video Capture: Frame #033 (select) > > Video Capture: Frame #034 (select) > > Video Capture: Frame #035 (select) > > Video Capture: Frame #036 (select) > > Video Capture: Frame #037 (select) > > Video Capture: Frame #038 (select) > > Video Capture: Frame #039 (select) > > Video Capture: Frame #040 (select) > > Video Capture: Frame #041 (select) > > Video Capture: Frame #042 (select) > > Video Capture: Frame #043 (select) > > Video Capture: Frame #044 (select) > > Video Capture: Frame #045 (select) > > Video Capture: Frame #046 (select) > > Video Capture: Frame #047 (select) > > Video Capture: Frame #048 (select) > > Video Capture: Frame #049 (select) > > Video Capture: Frame #050 (select) > > Video Capture: Frame #051 (select) > > Video Capture: Frame #052 (select) > > Video Capture: Frame #053 (select) > > Video Capture: Frame #054 (select) > > Video Capture: Frame #055 (select) > > Video Capture: Frame #056 (select) > > Video Capture: Frame #057 (select) > > Video Capture: Frame #058 (select) > > Video Capture: Frame #059 (select) > > > > test MMAP (select, CREATE_BUFS): OK > > > > Video Capture: Frame #000 (epoll) > > Video Capture: Frame #001 (epoll) > > Video Capture: Frame #002 (epoll) > > Video Capture: Frame #003 (epoll) > > Video Capture: Frame #004 (epoll) > > Video Capture: Frame #005 (epoll) > > Video Capture: Frame #006 (epoll) > > Video Capture: Frame #007 (epoll) > > Video Capture: Frame #008 (epoll) > > Video Capture: Frame #009 (epoll) > > Video Capture: Frame #010 (epoll) > > Video Capture: Frame #011 (epoll) > > Video Capture: Frame #012 (epoll) > > Video Capture: Frame #013 (epoll) > > Video Capture: Frame #014 (epoll) > > Video Capture: Frame #015 (epoll) > > Video Capture: Frame #016 (epoll) > > Video Capture: Frame #017 (epoll) > > Video Capture: Frame #018 (epoll) > > Video Capture: Frame #019 (epoll) > > Video Capture: Frame #020 (epoll) > > Video Capture: Frame #021 (epoll) > > Video Capture: Frame #022 (epoll) > > Video Capture: Frame #023 (epoll) > > Video Capture: Frame #024 (epoll) > > Video Capture: Frame #025 (epoll) > > Video Capture: Frame #026 (epoll) > > Video Capture: Frame #027 (epoll) > > Video Capture: Frame #028 (epoll) > > Video Capture: Frame #029 (epoll) > > Video Capture: Frame #030 (epoll) > > Video Capture: Frame #031 (epoll) > > Video Capture: Frame #032 (epoll) > > Video Capture: Frame #033 (epoll) > > Video Capture: Frame #034 (epoll) > > Video Capture: Frame #035 (epoll) > > Video Capture: Frame #036 (epoll) > > Video Capture: Frame #037 (epoll) > > Video Capture: Frame #038 (epoll) > > Video Capture: Frame #039 (epoll) > > Video Capture: Frame #040 (epoll) > > Video Capture: Frame #041 (epoll) > > Video Capture: Frame #042 (epoll) > > Video Capture: Frame #043 (epoll) > > Video Capture: Frame #044 (epoll) > > Video Capture: Frame #045 (epoll) > > Video Capture: Frame #046 (epoll) > > Video Capture: Frame #047 (epoll) > > Video Capture: Frame #048 (epoll) > > Video Capture: Frame #049 (epoll) > > Video Capture: Frame #050 (epoll) > > Video Capture: Frame #051 (epoll) > > Video Capture: Frame #052 (epoll) > > Video Capture: Frame #053 (epoll) > > Video Capture: Frame #054 (epoll) > > Video Capture: Frame #055 (epoll) > > Video Capture: Frame #056 (epoll) > > Video Capture: Frame #057 (epoll) > > Video Capture: Frame #058 (epoll) > > Video Capture: Frame #059 (epoll) > > > > test MMAP (epoll, CREATE_BUFS): OK > > > > Video Capture: Frame #000 > > Video Capture: Frame #001 > > Video Capture: Frame #002 > > Video Capture: Frame #003 > > Video Capture: Frame #004 > > Video Capture: Frame #005 > > Video Capture: Frame #006 > > Video Capture: Frame #007 > > Video Capture: Frame #008 > > Video Capture: Frame #009 > > Video Capture: Frame #010 > > Video Capture: Frame #011 > > Video Capture: Frame #012 > > Video Capture: Frame #013 > > Video Capture: Frame #014 > > Video Capture: Frame #015 > > Video Capture: Frame #016 > > Video Capture: Frame #017 > > Video Capture: Frame #018 > > Video Capture: Frame #019 > > Video Capture: Frame #020 > > Video Capture: Frame #021 > > Video Capture: Frame #022 > > Video Capture: Frame #023 > > Video Capture: Frame #024 > > Video Capture: Frame #025 > > Video Capture: Frame #026 > > Video Capture: Frame #027 > > Video Capture: Frame #028 > > Video Capture: Frame #029 > > Video Capture: Frame #030 > > Video Capture: Frame #031 > > Video Capture: Frame #032 > > Video Capture: Frame #033 > > Video Capture: Frame #034 > > Video Capture: Frame #035 > > Video Capture: Frame #036 > > Video Capture: Frame #037 > > Video Capture: Frame #038 > > Video Capture: Frame #039 > > Video Capture: Frame #040 > > Video Capture: Frame #041 > > Video Capture: Frame #042 > > Video Capture: Frame #043 > > Video Capture: Frame #044 > > Video Capture: Frame #045 > > Video Capture: Frame #046 > > Video Capture: Frame #047 > > Video Capture: Frame #048 > > Video Capture: Frame #049 > > Video Capture: Frame #050 > > Video Capture: Frame #051 > > Video Capture: Frame #052 > > Video Capture: Frame #053 > > Video Capture: Frame #054 > > Video Capture: Frame #055 > > Video Capture: Frame #056 > > Video Capture: Frame #057 > > Video Capture: Frame #058 > > Video Capture: Frame #059 > > > > test USERPTR (no poll): OK > > > > Video Capture: Frame #000 (select) > > Video Capture: Frame #001 (select) > > Video Capture: Frame #002 (select) > > Video Capture: Frame #003 (select) > > Video Capture: Frame #004 (select) > > Video Capture: Frame #005 (select) > > Video Capture: Frame #006 (select) > > Video Capture: Frame #007 (select) > > Video Capture: Frame #008 (select) > > Video Capture: Frame #009 (select) > > Video Capture: Frame #010 (select) > > Video Capture: Frame #011 (select) > > Video Capture: Frame #012 (select) > > Video Capture: Frame #013 (select) > > Video Capture: Frame #014 (select) > > Video Capture: Frame #015 (select) > > Video Capture: Frame #016 (select) > > Video Capture: Frame #017 (select) > > Video Capture: Frame #018 (select) > > Video Capture: Frame #019 (select) > > Video Capture: Frame #020 (select) > > Video Capture: Frame #021 (select) > > Video Capture: Frame #022 (select) > > Video Capture: Frame #023 (select) > > Video Capture: Frame #024 (select) > > Video Capture: Frame #025 (select) > > Video Capture: Frame #026 (select) > > Video Capture: Frame #027 (select) > > Video Capture: Frame #028 (select) > > Video Capture: Frame #029 (select) > > Video Capture: Frame #030 (select) > > Video Capture: Frame #031 (select) > > Video Capture: Frame #032 (select) > > Video Capture: Frame #033 (select) > > Video Capture: Frame #034 (select) > > Video Capture: Frame #035 (select) > > Video Capture: Frame #036 (select) > > Video Capture: Frame #037 (select) > > Video Capture: Frame #038 (select) > > Video Capture: Frame #039 (select) > > Video Capture: Frame #040 (select) > > Video Capture: Frame #041 (select) > > Video Capture: Frame #042 (select) > > Video Capture: Frame #043 (select) > > Video Capture: Frame #044 (select) > > Video Capture: Frame #045 (select) > > Video Capture: Frame #046 (select) > > Video Capture: Frame #047 (select) > > Video Capture: Frame #048 (select) > > Video Capture: Frame #049 (select) > > Video Capture: Frame #050 (select) > > Video Capture: Frame #051 (select) > > Video Capture: Frame #052 (select) > > Video Capture: Frame #053 (select) > > Video Capture: Frame #054 (select) > > Video Capture: Frame #055 (select) > > Video Capture: Frame #056 (select) > > Video Capture: Frame #057 (select) > > Video Capture: Frame #058 (select) > > Video Capture: Frame #059 (select) > > > > test USERPTR (select): OK > > test DMABUF: Cannot test, specify --expbuf-device > > > > Total for uvcvideo device /dev/video1: 58, Succeeded: 57, Failed: 1, Wa= rnings: 0 > > > > As tested on the guest: > > > > $ v4l2-compliance -d0 -s --driver-name uvcvideo > > > > v4l2-compliance 1.33.0-5457, 64 bits, 64-bit time_t > > v4l2-compliance SHA: e7e240f546f3 2026-05-28 17:06:12 > > > > Compliance test for uvcvideo device (overridden from virtio-media) /dev= /video0: > > > > Driver Info: > > Driver name : uvcvideo > > Card type : Logitech Webcam C925e > > Bus info : platform:virtio-media > > Driver version : 7.1.0 > > Capabilities : 0x84200001 > > Video Capture > > Streaming > > Extended Pix Format > > Device Capabilities > > Device Caps : 0x04200001 > > Video Capture > > 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 > > test for unlimited opens: 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 > > 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 > > fail: v4l2-test-controls.cpp(981): ret (got 22) > > test VIDIOC_G/S/TRY_EXT_CTRLS: FAIL > > test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK > > test VIDIOC_G/S_JPEGCOMP: OK (Not Supported) > > Standard Controls: 19 Private Controls: 0 > > > > Format ioctls (Input 0): > > test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK > > test VIDIOC_G/S_PARM: OK > > test VIDIOC_G_FBUF: OK (Not Supported) > > test VIDIOC_G_FMT: OK > > test VIDIOC_TRY_FMT: OK > > 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): > > test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK > > test CREATE_BUFS maximum buffers: OK > > test VIDIOC_REMOVE_BUFS: OK > > test VIDIOC_EXPBUF: OK (Not Supported) > > test Requests: OK (Not Supported) > > test blocking wait: OK > > > > Test input 0: > > > > Streaming ioctls: > > test read/write: OK (Not Supported) > > > > Video Capture: Frame #000 > > Video Capture: Frame #001 > > Video Capture: Frame #002 > > Video Capture: Frame #003 > > Video Capture: Frame #004 > > Video Capture: Frame #005 > > Video Capture: Frame #006 > > Video Capture: Frame #007 > > Video Capture: Frame #008 > > Video Capture: Frame #009 > > Video Capture: Frame #010 > > Video Capture: Frame #011 > > Video Capture: Frame #012 > > Video Capture: Frame #013 > > Video Capture: Frame #014 > > Video Capture: Frame #015 > > Video Capture: Frame #016 > > Video Capture: Frame #017 > > Video Capture: Frame #018 > > Video Capture: Frame #019 > > Video Capture: Frame #020 > > Video Capture: Frame #021 > > Video Capture: Frame #022 > > Video Capture: Frame #023 > > Video Capture: Frame #024 > > Video Capture: Frame #025 > > Video Capture: Frame #026 > > Video Capture: Frame #027 > > Video Capture: Frame #028 > > Video Capture: Frame #029 > > Video Capture: Frame #030 > > Video Capture: Frame #031 > > Video Capture: Frame #032 > > Video Capture: Frame #033 > > Video Capture: Frame #034 > > Video Capture: Frame #035 > > Video Capture: Frame #036 > > Video Capture: Frame #037 > > Video Capture: Frame #038 > > Video Capture: Frame #039 > > Video Capture: Frame #040 > > Video Capture: Frame #041 > > Video Capture: Frame #042 > > Video Capture: Frame #043 > > Video Capture: Frame #044 > > Video Capture: Frame #045 > > Video Capture: Frame #046 > > Video Capture: Frame #047 > > Video Capture: Frame #048 > > Video Capture: Frame #049 > > Video Capture: Frame #050 > > Video Capture: Frame #051 > > Video Capture: Frame #052 > > Video Capture: Frame #053 > > Video Capture: Frame #054 > > Video Capture: Frame #055 > > Video Capture: Frame #056 > > Video Capture: Frame #057 > > Video Capture: Frame #058 > > Video Capture: Frame #059 > > > > test MMAP (no poll, REQBUFS): OK > > > > Video Capture: Frame #000 (select) > > Video Capture: Frame #001 (select) > > Video Capture: Frame #002 (select) > > Video Capture: Frame #003 (select) > > Video Capture: Frame #004 (select) > > Video Capture: Frame #005 (select) > > Video Capture: Frame #006 (select) > > Video Capture: Frame #007 (select) > > Video Capture: Frame #008 (select) > > Video Capture: Frame #009 (select) > > Video Capture: Frame #010 (select) > > Video Capture: Frame #011 (select) > > Video Capture: Frame #012 (select) > > Video Capture: Frame #013 (select) > > Video Capture: Frame #014 (select) > > Video Capture: Frame #015 (select) > > Video Capture: Frame #016 (select) > > Video Capture: Frame #017 (select) > > Video Capture: Frame #018 (select) > > Video Capture: Frame #019 (select) > > Video Capture: Frame #020 (select) > > Video Capture: Frame #021 (select) > > Video Capture: Frame #022 (select) > > Video Capture: Frame #023 (select) > > Video Capture: Frame #024 (select) > > Video Capture: Frame #025 (select) > > Video Capture: Frame #026 (select) > > Video Capture: Frame #027 (select) > > Video Capture: Frame #028 (select) > > Video Capture: Frame #029 (select) > > Video Capture: Frame #030 (select) > > Video Capture: Frame #031 (select) > > Video Capture: Frame #032 (select) > > Video Capture: Frame #033 (select) > > Video Capture: Frame #034 (select) > > Video Capture: Frame #035 (select) > > Video Capture: Frame #036 (select) > > Video Capture: Frame #037 (select) > > Video Capture: Frame #038 (select) > > Video Capture: Frame #039 (select) > > Video Capture: Frame #040 (select) > > Video Capture: Frame #041 (select) > > Video Capture: Frame #042 (select) > > Video Capture: Frame #043 (select) > > Video Capture: Frame #044 (select) > > Video Capture: Frame #045 (select) > > Video Capture: Frame #046 (select) > > Video Capture: Frame #047 (select) > > Video Capture: Frame #048 (select) > > Video Capture: Frame #049 (select) > > Video Capture: Frame #050 (select) > > Video Capture: Frame #051 (select) > > Video Capture: Frame #052 (select) > > Video Capture: Frame #053 (select) > > Video Capture: Frame #054 (select) > > Video Capture: Frame #055 (select) > > Video Capture: Frame #056 (select) > > Video Capture: Frame #057 (select) > > Video Capture: Frame #058 (select) > > Video Capture: Frame #059 (select) > > > > test MMAP (select, REQBUFS): OK > > > > Video Capture: Frame #000 (epoll) > > Video Capture: Frame #001 (epoll) > > Video Capture: Frame #002 (epoll) > > Video Capture: Frame #003 (epoll) > > Video Capture: Frame #004 (epoll) > > Video Capture: Frame #005 (epoll) > > Video Capture: Frame #006 (epoll) > > Video Capture: Frame #007 (epoll) > > Video Capture: Frame #008 (epoll) > > Video Capture: Frame #009 (epoll) > > Video Capture: Frame #010 (epoll) > > Video Capture: Frame #011 (epoll) > > Video Capture: Frame #012 (epoll) > > Video Capture: Frame #013 (epoll) > > Video Capture: Frame #014 (epoll) > > Video Capture: Frame #015 (epoll) > > Video Capture: Frame #016 (epoll) > > Video Capture: Frame #017 (epoll) > > Video Capture: Frame #018 (epoll) > > Video Capture: Frame #019 (epoll) > > Video Capture: Frame #020 (epoll) > > Video Capture: Frame #021 (epoll) > > Video Capture: Frame #022 (epoll) > > Video Capture: Frame #023 (epoll) > > Video Capture: Frame #024 (epoll) > > Video Capture: Frame #025 (epoll) > > Video Capture: Frame #026 (epoll) > > Video Capture: Frame #027 (epoll) > > Video Capture: Frame #028 (epoll) > > Video Capture: Frame #029 (epoll) > > Video Capture: Frame #030 (epoll) > > Video Capture: Frame #031 (epoll) > > Video Capture: Frame #032 (epoll) > > Video Capture: Frame #033 (epoll) > > Video Capture: Frame #034 (epoll) > > Video Capture: Frame #035 (epoll) > > Video Capture: Frame #036 (epoll) > > Video Capture: Frame #037 (epoll) > > Video Capture: Frame #038 (epoll) > > Video Capture: Frame #039 (epoll) > > Video Capture: Frame #040 (epoll) > > Video Capture: Frame #041 (epoll) > > Video Capture: Frame #042 (epoll) > > Video Capture: Frame #043 (epoll) > > Video Capture: Frame #044 (epoll) > > Video Capture: Frame #045 (epoll) > > Video Capture: Frame #046 (epoll) > > Video Capture: Frame #047 (epoll) > > Video Capture: Frame #048 (epoll) > > Video Capture: Frame #049 (epoll) > > Video Capture: Frame #050 (epoll) > > Video Capture: Frame #051 (epoll) > > Video Capture: Frame #052 (epoll) > > Video Capture: Frame #053 (epoll) > > Video Capture: Frame #054 (epoll) > > Video Capture: Frame #055 (epoll) > > Video Capture: Frame #056 (epoll) > > Video Capture: Frame #057 (epoll) > > Video Capture: Frame #058 (epoll) > > Video Capture: Frame #059 (epoll) > > > > test MMAP (epoll, REQBUFS): OK > > > > Video Capture: Frame #000 > > Video Capture: Frame #001 > > Video Capture: Frame #002 > > Video Capture: Frame #003 > > Video Capture: Frame #004 > > Video Capture: Frame #005 > > Video Capture: Frame #006 > > Video Capture: Frame #007 > > Video Capture: Frame #008 > > Video Capture: Frame #009 > > Video Capture: Frame #010 > > Video Capture: Frame #011 > > Video Capture: Frame #012 > > Video Capture: Frame #013 > > Video Capture: Frame #014 > > Video Capture: Frame #015 > > Video Capture: Frame #016 > > Video Capture: Frame #017 > > Video Capture: Frame #018 > > Video Capture: Frame #019 > > Video Capture: Frame #020 > > Video Capture: Frame #021 > > Video Capture: Frame #022 > > Video Capture: Frame #023 > > Video Capture: Frame #024 > > Video Capture: Frame #025 > > Video Capture: Frame #026 > > Video Capture: Frame #027 > > Video Capture: Frame #028 > > Video Capture: Frame #029 > > Video Capture: Frame #030 > > Video Capture: Frame #031 > > Video Capture: Frame #032 > > Video Capture: Frame #033 > > Video Capture: Frame #034 > > Video Capture: Frame #035 > > Video Capture: Frame #036 > > Video Capture: Frame #037 > > Video Capture: Frame #038 > > Video Capture: Frame #039 > > Video Capture: Frame #040 > > Video Capture: Frame #041 > > Video Capture: Frame #042 > > Video Capture: Frame #043 > > Video Capture: Frame #044 > > Video Capture: Frame #045 > > Video Capture: Frame #046 > > Video Capture: Frame #047 > > Video Capture: Frame #048 > > Video Capture: Frame #049 > > Video Capture: Frame #050 > > Video Capture: Frame #051 > > Video Capture: Frame #052 > > Video Capture: Frame #053 > > Video Capture: Frame #054 > > Video Capture: Frame #055 > > Video Capture: Frame #056 > > Video Capture: Frame #057 > > Video Capture: Frame #058 > > Video Capture: Frame #059 > > > > test MMAP (no poll, CREATE_BUFS): OK > > > > Video Capture: Frame #000 (select) > > Video Capture: Frame #001 (select) > > Video Capture: Frame #002 (select) > > Video Capture: Frame #003 (select) > > Video Capture: Frame #004 (select) > > Video Capture: Frame #005 (select) > > Video Capture: Frame #006 (select) > > Video Capture: Frame #007 (select) > > Video Capture: Frame #008 (select) > > Video Capture: Frame #009 (select) > > Video Capture: Frame #010 (select) > > Video Capture: Frame #011 (select) > > Video Capture: Frame #012 (select) > > Video Capture: Frame #013 (select) > > Video Capture: Frame #014 (select) > > Video Capture: Frame #015 (select) > > Video Capture: Frame #016 (select) > > Video Capture: Frame #017 (select) > > Video Capture: Frame #018 (select) > > Video Capture: Frame #019 (select) > > Video Capture: Frame #020 (select) > > Video Capture: Frame #021 (select) > > Video Capture: Frame #022 (select) > > Video Capture: Frame #023 (select) > > Video Capture: Frame #024 (select) > > Video Capture: Frame #025 (select) > > Video Capture: Frame #026 (select) > > Video Capture: Frame #027 (select) > > Video Capture: Frame #028 (select) > > Video Capture: Frame #029 (select) > > Video Capture: Frame #030 (select) > > Video Capture: Frame #031 (select) > > Video Capture: Frame #032 (select) > > Video Capture: Frame #033 (select) > > Video Capture: Frame #034 (select) > > Video Capture: Frame #035 (select) > > Video Capture: Frame #036 (select) > > Video Capture: Frame #037 (select) > > Video Capture: Frame #038 (select) > > Video Capture: Frame #039 (select) > > Video Capture: Frame #040 (select) > > Video Capture: Frame #041 (select) > > Video Capture: Frame #042 (select) > > Video Capture: Frame #043 (select) > > Video Capture: Frame #044 (select) > > Video Capture: Frame #045 (select) > > Video Capture: Frame #046 (select) > > Video Capture: Frame #047 (select) > > Video Capture: Frame #048 (select) > > Video Capture: Frame #049 (select) > > Video Capture: Frame #050 (select) > > Video Capture: Frame #051 (select) > > Video Capture: Frame #052 (select) > > Video Capture: Frame #053 (select) > > Video Capture: Frame #054 (select) > > Video Capture: Frame #055 (select) > > Video Capture: Frame #056 (select) > > Video Capture: Frame #057 (select) > > Video Capture: Frame #058 (select) > > Video Capture: Frame #059 (select) > > > > test MMAP (select, CREATE_BUFS): OK > > > > Video Capture: Frame #000 (epoll) > > Video Capture: Frame #001 (epoll) > > Video Capture: Frame #002 (epoll) > > Video Capture: Frame #003 (epoll) > > Video Capture: Frame #004 (epoll) > > Video Capture: Frame #005 (epoll) > > Video Capture: Frame #006 (epoll) > > Video Capture: Frame #007 (epoll) > > Video Capture: Frame #008 (epoll) > > Video Capture: Frame #009 (epoll) > > Video Capture: Frame #010 (epoll) > > Video Capture: Frame #011 (epoll) > > Video Capture: Frame #012 (epoll) > > Video Capture: Frame #013 (epoll) > > Video Capture: Frame #014 (epoll) > > Video Capture: Frame #015 (epoll) > > Video Capture: Frame #016 (epoll) > > Video Capture: Frame #017 (epoll) > > Video Capture: Frame #018 (epoll) > > Video Capture: Frame #019 (epoll) > > Video Capture: Frame #020 (epoll) > > Video Capture: Frame #021 (epoll) > > Video Capture: Frame #022 (epoll) > > Video Capture: Frame #023 (epoll) > > Video Capture: Frame #024 (epoll) > > Video Capture: Frame #025 (epoll) > > Video Capture: Frame #026 (epoll) > > Video Capture: Frame #027 (epoll) > > Video Capture: Frame #028 (epoll) > > Video Capture: Frame #029 (epoll) > > Video Capture: Frame #030 (epoll) > > Video Capture: Frame #031 (epoll) > > Video Capture: Frame #032 (epoll) > > Video Capture: Frame #033 (epoll) > > Video Capture: Frame #034 (epoll) > > Video Capture: Frame #035 (epoll) > > Video Capture: Frame #036 (epoll) > > Video Capture: Frame #037 (epoll) > > Video Capture: Frame #038 (epoll) > > Video Capture: Frame #039 (epoll) > > Video Capture: Frame #040 (epoll) > > Video Capture: Frame #041 (epoll) > > Video Capture: Frame #042 (epoll) > > Video Capture: Frame #043 (epoll) > > Video Capture: Frame #044 (epoll) > > Video Capture: Frame #045 (epoll) > > Video Capture: Frame #046 (epoll) > > Video Capture: Frame #047 (epoll) > > Video Capture: Frame #048 (epoll) > > Video Capture: Frame #049 (epoll) > > Video Capture: Frame #050 (epoll) > > Video Capture: Frame #051 (epoll) > > Video Capture: Frame #052 (epoll) > > Video Capture: Frame #053 (epoll) > > Video Capture: Frame #054 (epoll) > > Video Capture: Frame #055 (epoll) > > Video Capture: Frame #056 (epoll) > > Video Capture: Frame #057 (epoll) > > Video Capture: Frame #058 (epoll) > > Video Capture: Frame #059 (epoll) > > > > test MMAP (epoll, CREATE_BUFS): OK > > test USERPTR (no poll): OK (Not Supported) > > test USERPTR (select): OK (Not Supported) > > test DMABUF (no poll): OK (Not Supported) > > test DMABUF (select): OK (Not Supported) > > > > Total for uvcvideo device /dev/video0: 59, Succeeded: 58, Failed: 1, Wa= rnings: 0 > > > > --- > > Changes in v5: > > - Add DMA buffer alignment and padding for commands, responses, and the= event > > buffer > > - Corrected styling of kernel-doc comments > > - Removed the configurable ``driver_name`` module parameter > > - Moved the protocol to ``include/uapi/linux/virtio_media.h`` > > - Link to v4: https://lore.kernel.org/all/20260622204343.1994418-1-bria= [email protected]/ > > > > Changes in v4: > > - Rebased on top of v7.1-rc1 > > - Replace usages of filep->private_data with file_to_v4l2_fh() > > throughout the driver > > - Link to v3: https://lore.kernel.org/r/20250412-virtio-media-v3-1-97dc= [email protected] > > > > Changes in v3: > > - Rebased on top of v6.15-rc1 and removes obsolete control callbacks. > > - Link to v2: https://lore.kernel.org/r/20250201-virtio-media-v2-1-ac84= [email protected] > > > > Changes in v2: > > - Fixed kernel test robot and media CI warnings (ignored a few false > > positives). > > - Changed in-driver email address to personal one since my Google one > > will soon become invalid. > > - Link to v1: https://lore.kernel.org/r/20250123-virtio-media-v1-1-81e2= [email protected] > > > > Brian Daniels (5): > > media: virtio: Add skeleton virtio-media driver > > media: virtio: Add session management > > media: virtio: Add scatterlist builder > > media: virtio: Add ioctl operations and driver logic > > media: virtio: Add USERPTR memory type support > > > > MAINTAINERS | 8 + > > drivers/media/Kconfig | 13 + > > drivers/media/Makefile | 2 + > > drivers/media/virtio/Makefile | 7 + > > drivers/media/virtio/scatterlist_builder.c | 579 +++++++++ > > drivers/media/virtio/scatterlist_builder.h | 112 ++ > > drivers/media/virtio/session.h | 132 ++ > > drivers/media/virtio/virtio_media.h | 97 ++ > > drivers/media/virtio/virtio_media_driver.c | 951 ++++++++++++++ > > drivers/media/virtio/virtio_media_ioctls.c | 1326 ++++++++++++++++++++ > > include/uapi/linux/virtio_media.h | 287 +++++ > > 11 files changed, 3514 insertions(+) > > create mode 100644 drivers/media/virtio/Makefile > > create mode 100644 drivers/media/virtio/scatterlist_builder.c > > create mode 100644 drivers/media/virtio/scatterlist_builder.h > > create mode 100644 drivers/media/virtio/session.h > > create mode 100644 drivers/media/virtio/virtio_media.h > > create mode 100644 drivers/media/virtio/virtio_media_driver.c > > create mode 100644 drivers/media/virtio/virtio_media_ioctls.c > > create mode 100644 include/uapi/linux/virtio_media.h > > > > > > base-commit: 06cb687a5132fcffe624c0070576ab852ac6b568 > > -- > > 2.55.0.229.g6434b31f56-goog > > >