lkml.org 
[lkml]   [2006]   [Dec]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [GIT PATCH] more Driver core patches for 2.6.19
Hi!

> > Seriously, though, please please pretty please do not allow a facility
> > for "going through a simple interface to get accesses to irqs and
> > memory regions" into the mainline kernel, with or without toy ISA
> > examples.
>
> I do agree.
>
> I'm not violently opposed to something like this in practice (we've
> already allowed it for USB devices), but there definitely needs to be a
> real reason that helps _us_, not just some ass-hat vendor that looks for a
> way to avoid open-sourcing their driver.
>
> If there are real and valid uses (and as mentioned, I actually think that
> the whole graphics-3D-engine-thing is such a use) where a kernel driver
> simply doesn't work out well, or where there are serious tecnical reasons
> why it wants to be in user space (and "stability" is not one such thing:
> if you access hardware directly in user space, and your driver is buggy,
> the machine is equally deal, and a hell of a lot harder to control to
> boot).

Well.. it is easier to debug in userspace. While bad hw access can
still kill the box, bad free() will not, and most bugs in early
developent are actually of 2nd kind.
Pavel
--
Thanks for all the (sleeping) penguins.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-12-16 10:09    [from the cache]
©2003-2011 Jasper Spaans