[9fans] fix works for: usbuhci: port 65504 in use

[Axel Belinfante <Axel.Belinfante@cs.utwente.nl>]

Thanks, that did it!!!
Makes sense to fix on sources?

and now there is sound -- great!!
and now the question is how to control volume,
seems that low volume settings are quite negative
(-5376 for default volume setting of usbstart)
highest volume setting is 0 (or also negative?)
how does this interact with mixer etc.  ?

(and see what other things can be controlled;
I have the 'plain' xitel hifi-link)

(For the interested, /dev/audioctl gives me, after some fiddling:
speed out 44100 4990 55010
mute out 1
volume out '-1050 -1050'
channels out 2 1 2
resolution out 16 8 20
)

Forsyth wrote:

> /sys/src/9/pc/devarch.c says
>
> 		// Only 64KB I/O space on the x86.
> 		if((port+size) >= 0x10000){
>
> but i think the test should be > not >=
> (since port address port+size isn't included in the allocation)