Date: Wed, 09 Mar 2005 09:15:17 +0100 From: Gary Jennejohn <garyj@jennejohn.org> To: Wes Peters <wes@softweyr.com> Cc: Ian Dowse <iedowse@freebsd.org> Subject: Re: cvs commit: src/sys/dev/usb ehci.c Message-ID: <200503090815.j298FHkE002563@peedub.jennejohn.org> In-Reply-To: Message from Wes Peters <wes@softweyr.com> of "Tue, 08 Mar 2005 17:31:47 PST." <200503081731.48074.wes@softweyr.com>
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Wes Peters writes: > 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)! > Yeah, this is excellent stuff! EHCI seems to finally work at full speed (my ARCHOS Jukebox Recorder now shows 40 MB/s) and without all the strange hangs/crashes it used to exhibit. --- Gary Jennejohn / garyj[at]jennejohn.org gj[at]freebsd.org garyj[at]denx.de
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