Date: Tue, 8 Mar 2005 17:31:47 -0800 From: Wes Peters <wes@softweyr.com> To: Ian Dowse <iedowse@freebsd.org> Cc: cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/dev/usb ehci.c Message-ID: <200503081731.48074.wes@softweyr.com> In-Reply-To: <200503080247.j282lI4W044481@repoman.freebsd.org> References: <200503080247.j282lI4W044481@repoman.freebsd.org>
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On Monday 07 March 2005 06:47 pm, Ian Dowse wrote:
> iedowse 2005-03-08 02:47:18 UTC
>
> FreeBSD src repository
>
> Modified files:
> sys/dev/usb ehci.c
> Log:
> Fix the silly bug that prevented most EHCI interrupt transfers from
> ever working correctly: the code was linking the QHs together but
> then immediately overwriting the "next" pointers. Oops. Also
> initialise qh_endphub, since the EHCI spec says that we should
> always set the pipe multiplier field to something sensible.
>
> This appears to make basic split transactions work, so enable split
> transactions for control, bulk and interrupt pipes (split isochronous
> transfers are not yet implemented). It should now be possible to
> use USB1 devices even when they are connected through a USB2 hub.
Hurray! Imagine being able to scan without unplugging the printer
(or the keyboard)!
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters wes@softweyr.com
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