Re: [kernel] r15374 - in dists/sid/linux-2.6/debian: . templates
On Mon, Mar 15, 2010 at 10:55:09PM +0100, Bastian Blank wrote:
> On Mon, Mar 15, 2010 at 06:24:18PM +0000, Ben Hutchings wrote:
> > On Mon, Mar 15, 2010 at 06:41:16PM +0100, Bastian Blank wrote:
> > > On Sun, Mar 14, 2010 at 11:09:39PM +0000, Ben Hutchings wrote:
> > > > Log:
> > > > Remove /usr/include/drm from linux-libc-dev; let libdrm-dev provide it again
> > > Please explain. This is a kernel interface.
> > Which is not very stable, so userland may need different definitions.
>
> If it is not stable enough, it is to be unexported.
[...]
Video drivers are split between user-space (X, Mesa, etc.) and kernel-space
components for performance reasons. The interfaces between different
components of a driver do not have the same stability requirements as most
interfaces between kernel and user-space. There does need to be some support
for mismatched versions and libdrm may be able to help by including more than
just the current kernel interface definitions. In any case, nothing should
be using the kernel DRM interface without going through libdrm.
Ben.
--
Ben Hutchings
It is a miracle that curiosity survives formal education. - Albert Einstein
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