On Thu, 25 Apr 2002, David Brownell wrote:
> > > cvs -d cvs.linux-usb.sf.net:/cvsroot/linux-usb -z3 co hcd
>
> Don't use that, it's not as current as what's in the 2.5.latest kernel.
>
>
> > Thanks, reading README was quite enlightening. I now feel much better
> > about 16mb/sec transfer rate that I was seeing. Does anyone know of a host
> > controller that is able to utilize entire USB bandwidth ? Or, is there
> > some tweaking to be done in the driver ?
>
> If you only got 16 MB/sec from an FX2, your firmware might be improved.
> I've seen 22 MB/sec from one. The NEC controller can max out that
> particular device. Or maybe it's that you're going through "libusb".
Perhaps thats libusb, or perhaps it is some code inefficiency or timing
issue. Actually I am pretty happy with 16mb/sec now and am waiting for the
analog parts to come in.
>
> Those NEC hardware limitations are fairly widely confirmed. I'm told that
> several of the other implementations (Intel, Philips, and VIA are now
> available to various degrees; ALI, ATI, and SiS seem to be coming along)
> are not taking those same implementation shortcuts. But then, they're also
> coming to market 18+ months later ... :)
If you happen to have some models that you benchmarked to be better -
could you e-mail me their model numbers ?
thanks !
Vladimir Dergachev
>
> - Dave
>
>
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