Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss
Re: cvs commit: src/sys/dev/usb ehci.c
1 view
Skip to first unread message
Wes Peters
Mar 8, 2005, 8:31:47 PM3/8/05
to Ian Dowse, cvs...@freebsd.org, src-com...@freebsd.org, cvs...@freebsd.org
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.
> 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 w...@softweyr.com
Gary Jennejohn
Mar 9, 2005, 3:15:17 AM3/9/05
to Wes Peters, cvs...@freebsd.org, src-com...@freebsd.org, cvs...@freebsd.org, Ian Dowse
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
0 new messages