USB device implementation

[Anish Mistry]

On Tuesday 17 January 2006 06:03, Alexander Leidinger wrote:
> "Michael S. Eubanks" <mse_software at charter.net> wrote:
> > Okay.  I will look into it some more.  I need to get better idea
> > of how the USB driver code works.  It looks like there are only
> > minor differences between my current driver code and the NetBSD
> > code.  With respect to any questions and changes I make, should I
> > contact mux@ directly using the email address listed on the
> > contributors page?
>
> Every FreeBSD committer should expect to get a mail with some
> questions, so mailing to mux at FreeBSD.org is not forbidden. :-)
>
> But he's not "the USB guy in the block". He just tries to port the
> uhidev code (maybe because he needs it). So don't expect an answer
> to every question.
>
> Unfortunately we don't have an active USB guru around, except
> Hans-Petter Selasky (not a FreeBSD committer), but he develops a
> rewritten-from-scratch USB stack. So don't expect him to be able to
> answer questions reagarding the USB stack in -current.
From my personal experience and just looking at the commiter that has 
been touching the usb files I'd add Ian Dowse <iedowse at freebsd.org> 
to that short guru list.  He has been pretty busy recently, but if 
you're willing to do your homework I'm sure he'd be happy to answer 
any questions.

>
> So far HPS wasn't able to convince a committer to import his work.
> Partly because we think that a USB stack which is shared between
> the BSD's may be better, partly because the existing stack seems to
> work good enough for those committers which may be willing to
> import the new one or be able to mentor HPS.
As Warner said it takes time to work through such a large change.  
Hans-Petter Selasky stack is trying to be free of the GIANT lock and 
that's a bit tricky with USB, but ultimately the direction we are 
heading for 7.0.

-- 
Anish Mistry
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