Okay, on a related note then... I was intending to upload the microcode that makes my camera work in the open function. This involves submitting several URBs. If the kernel is locked during this time, is that a bad time to be submitting a half dozen control messages? If so, when is a good time? On Thursday 21 February 2002 03:06 am, Mark McClelland wrote: > videodev.c holds the Big Kernel Lock while calling the drivers' open() > callbacks. So, this race cannot happen. > > Note that with Gerd's V4L redesign, I'm fairly sure that this race *can* > happen if the driver doesn't replace this check with > video_exclusive_open(), or protect it with a semaphore. This is because > the V4L layer doesn't have the open() wrapper function that it used to > have. > > Gerd, can you make sure that your cpia patch fixes this?
