Re: Free Linux Driver Development!

From: Greg KH
Date: Thu Feb 01 2007 - 00:52:32 EST


On Wed, Jan 31, 2007 at 10:15:20PM +0100, Nicolas Mailhot wrote:
> Le mercredi 31 janvier 2007 ?? 12:12 -0800, Greg KH a ??crit :
> > On Wed, Jan 31, 2007 at 02:06:32PM +0100, Nicolas Mailhot wrote:
>
> [Reordering for the sake of argument]
>
> > > There are many out-of-tree drivers (ivtv, lirc, various webcam
> > > drivers,
> > > enhanced USB keyboard handlers...) with merging not planified or taking
> > > ages.
> >
> > See my above comment about lirc. As for the others, everyone knows
> > where we are at, and what the critera is for getting their code into the
> > tree, so it's not like we are hiding anywhere :)
>
> The perception of many out-of-tree projects is "if I try to get in-tree
> I'll be submitted to vicious review, and I'll have to fix the code my
> myself, and that's assuming someone bothers to review it at all". What
> you've just wrote is no different:
>
> > we will gladly take any
> > currently out-of-the-tree drivers into mainline, as long as they follow
> > our rules and coding style issues, please do so.
>
> In other words, getting an out-of-tree driver in is a major unrewarding
> work commitment for its author (especially considering that if he was
> familiar with good kernel coding, chances are he'd have worked in-tree
> from the start, with an experimental driver)
>
> Contrast it with "give us a partial NDAed spec and we'll write a driver
> from scratch for you".

Sometimes doing a driver from scratch is much less effort than trying to
reengineer a badly designed and written driver to get it into the kernel
tree.

Also, almost all out-of-tree driver authors know what they need to do to
get the code into the kernel tree.

Again, I've offered my services to many such groups in the past. A lot
of them do get into the tree, and I'll continue to offer my services to
do this.

But again, that's not the main point of this announcement sorry.

> You're asking way more of people that have a lot less resources than
> hardware manufacturers. Many of those projects did try to get in-tree at
> least once before giving up.

Persistance is everything :)

> Meanwhile you're asking for specs of hardware no Linux user has, because
> no form of Linux support ever existed. This is a strange use of
> resources.

You are free to use your resources however you wish, and mine how I
wish. Would you want it to be any other way? :)

thanks,

greg k-h
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