USB under LinuxPPC

Tom Rini tmrini at
Thu May 6 03:50:41 EST 1999

On Tue, 4 May 1999, Sriranga Veeraraghavan wrote:

> > Er, SMP uusbd?  uusbd currently doesn't have all the locking requires for
> > SMP to work. Linus' simple USB code might work on SMP, but doens't have an
> > OHCI driver that works yet.
> I tried to make some simple patches to the uusb code to support
> locking using the same locking strategy as the vmscan.c and other
> kernel files, but there were too many things to fix.
> Where can I pick up a copy of Linus's USB driver? It does not seem to
> be included with my 2.2.5 kernel sources.

It's in 2.2.7.  But it does not have a OHCI controler (ie everything
that's not from intel).

> I am about to reveal my limited knowledge of USB, but what is the OHCI
> driver and will I need it to use a USB mouse or keyboard?

It's the controller you plug your keyboard/mouse into. :)

> Anyway, I wish I had the time to do a complete patch. I really would
> like to get usb running on my 7600. But if it is a tradeoff between
> SMP and USB, I'll pick 800 bogoMIPS over a three button mouse. :-)

Yeah, that's a bit of a shame..

Tom Rini (TR1265)

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