Re: [PATCH 0/7] Documentation: gpio: add character device userspace API documentation

[Vegard Nossum]

On 10/01/2024 00:45, Kent Gibson wrote:
> On Tue, Jan 09, 2024 at 10:00:26PM +0200, Andy Shevchenko wrote:
> > On Tue, Jan 9, 2024 at 4:00 PM Kent Gibson <warthog618@xxxxxxxxx> wrote:
> >
> > May we actually state in the documentation that sysfs is subject to
> > remove at some point?
>
> So formally define what "deprecated" means?
> Is that covered in the higher level documentation somewhere?
> If so I'm more than happy to provide a reference.

We have a few files that may be relevant here, that I'm aware of:

1) https://docs.kernel.org/admin-guide/sysfs-rules.html

documents some general assumptions that userspace can make about the
stability of sysfs and its files

2) https://docs.kernel.org/admin-guide/abi.html

This is the public-facing, somewhat machine-readable repository of what
is supposed to be the kernel's ABI/API, including "obsolete" and
"removed" interfaces.

3) Documentation/ABI/README

describes the process of deprecating an interface


Vegard