Interesting HOWTO
Steven James
pyro at linuxlabs.com
Sat Jan 31 21:58:00 CET 2004
Greetings,
I just got EHCI also :-)
I'm not sure it's all that necessary to support EHCI in firmware since any
USB 2.0 device is required to fall back if necessary. EHCI devices are
required to include a UHCI or OHCI companion device to handle 1.1 devices.
There's a bitmask to select which controls each port.
The USB boot over 1.1 only takes a second or 2 for a Linux kernel.
Given all that, the best bet is probably just set the ports to the
companion controller and support OHCI and UHCI.
G'day,
sjames
-------------------------steven james, director of research, linux labs
... ........ ..... .... 230 peachtree st nw ste 2701
the original linux labs atlanta.ga.us 30303
-since 1995 http://www.linuxlabs.com
office 404.577.7747 fax 404.577.7743
-----------------------------------------------------------------------
On Sun, 1 Feb 2004, Peter Lister wrote:
> On Sun, 2004-02-01 at 01:11, Peter Lister wrote:
>
> > Dumb question - how much work is it to add OHCI?
>
> Duh, sorry, meant EHCI. The USB 2.0 one.
>
>
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