On Wed, Oct 7, 2020 at 4:18 PM Christoph Hellwig <hch@xxxxxx> wrote: > > On Wed, Oct 07, 2020 at 04:16:39PM +0200, Arnd Bergmann wrote: > > Alternatively, the entire file could just be removed, since anyone > > willing to restore the functionality can equally well just look up > > the contents in the git history if needed. > > I suspect that is the right thing. Note that given that the driver > is only in staging anyway, the right thing to do would be to change > the ioctl ABI to be more compat friendly to start with. Ok, I sent that as v2 now. I wonder how many of those 56 ioctl commands in the driver are actually used in practice. Is there a public repository for the matching user space? Is it required to even use the driver or is it otherwise compatible with normal v4l2 applications? Arnd