cvs commit: src/sys/dev/usb ehci.c
garyj at jennejohn.org
Wed Mar 9 00:15:20 PST 2005
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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