Re: [Regression 5.14] media: dvb userspace api

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út 24. 8. 2021 v 9:50 odesílatel Mauro Carvalho Chehab
<mchehab+huawei@xxxxxxxxxx> napsal:
>
> Em Mon, 23 Aug 2021 09:58:00 -0700
> Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> escreveu:
>
> > On Mon, Aug 23, 2021 at 7:59 AM Soeren Moch <smoch@xxxxxx> wrote:
> > >
> > > Linus,
> > >
> > > Is what I described directly above the new linux maintenance policy?  Or
> > > is linux media a private kingdom where the community should keep away?
> > > Is this a place where the subsystem maintainer is on a mission to
> > > destroy everything instead of maintaining and improving it? Please tell
> > > me what I understood wrong here.
> >
> > So technically, the regression policy for the kernel is purely about
> > the ABI - the _binary_ interface. That seems to not have broken - old
> > programs continue to work.
> >
> > We very much try to discourage user space applications from using the
> > kernel header files directly - even projects like glibc etc are
> > supposed to _copy_ them, not include the kernel headers.
>
> Unfortunately, media APIs aren't part of projects like glibc. Almost all
> open source media apps keep their own copies of the uAPI header files.
>
> As far as I'm aware, the "full-feat" API is implemented only by some
> modules of VDR. I don't know any other open source application using
> such headers.
>

You definitely missed tons of users of linux based set-top-boxes,
powered by open-source DVB frondend Enigma2 (and also
still big enough older devices based on Enigma 1 project).
For ex here: https://github.com/OpenPLi/enigma2

/Honza (also retired dvb developer, disgusted the way how
media subsystem was driven)




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