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edit approved Jul 17, 2024 at 13:46
tinlyx
edit approved Jul 17, 2024 at 13:46
tinlyx
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I'm writing a python library called linuxpy which supports V4L2. One of the features is being able to open de V4L2 device in non blocking mode (O_NONBLOCKO_NONBLOCK) to be cooperative with python asyncasync/awaitawait.

I tried with several real cameras and everything seems to work properly. But when I test v4l2loopback device it blocks waiting for the first frame if I open the v4l2loopback device with O_NONBLOCKO_NONBLOCK.

Does anyone know if v4l2loopback supports O_NONBLOCKO_NONBLOCK?

I'm writing a python library called linuxpy which supports V4L2. One of the features is being able to open de V4L2 device in non blocking mode (O_NONBLOCK) to be cooperative with python async/await.

I tried with several real cameras and everything seems to work properly. But when I test v4l2loopback device it blocks waiting for the first frame if I open the v4l2loopback device with O_NONBLOCK.

Does anyone know if v4l2loopback supports O_NONBLOCK?

I'm writing a python library called linuxpy which supports V4L2. One of the features is being able to open de V4L2 device in non blocking mode (O_NONBLOCK) to be cooperative with python async/await.

I tried with several real cameras and everything seems to work properly. But when I test v4l2loopback device it blocks waiting for the first frame if I open the v4l2loopback device with O_NONBLOCK.

Does anyone know if v4l2loopback supports O_NONBLOCK?

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Tiago Coutinho
Tiago Coutinho
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Open v4l2loopback device with O_NONBLOCK

I'm writing a python library called linuxpy which supports V4L2. One of the features is being able to open de V4L2 device in non blocking mode (O_NONBLOCK) to be cooperative with python async/await.

I tried with several real cameras and everything seems to work properly. But when I test v4l2loopback device it blocks waiting for the first frame if I open the v4l2loopback device with O_NONBLOCK.

Does anyone know if v4l2loopback supports O_NONBLOCK?