Subject: Re: usb 1.1 vs 2.0
From: Jim Gribbin (jgribbin@alaska.net)
Date: Sun Jan 05 2003 - 20:33:41 AKST
I already had the driver they say loading, did try playing around with
the 1 tunable parameter it mentions, but I can't see that it made any
difference.
I'll have to see about trying it on a mobo with usb 2.0 built in, see if
that makes any difference.
On Sun, 2003-01-05 at 16:46, Greg Madden wrote:
> On Sun, 2003-01-05 at 14:46, Jim Gribbin wrote:
> >
> > I picked up a epson 2450 usb 2.0/firewire scanner the other day. Have
> > been using it fine with usb 1.1, but when I tried using it to scan a
> > couple of slides, it took about 3 min per at the highest resolution.
> >
> > Deciding this wasn't particularly acceptable, I picked up a SIIG usb
> > 2.0/1394 combo card. My slides still take ~3 min per.
> >
> > My system is a pIII 850/100 with 256 MB of ram and udma 66 hard-drives
> > so I don't believe system performance should be an issue. RH 7.3
> > recognized and setup the card without any real problems. 'USBVIEW'
> > reports that the scanner is running usb 2.0 at 480Mb/s of bandwidth
> > available.
> >
> > Anybody know of anything I might check out to get this running any
> > faster? This is my first foray into usb 2.0 and I am a little clueless
> > here.
> >
> > Jim Gribbin
>
>
> Jim, I haven't tried USB 2.0 myself but the following may suggest you
> need an additional driver for USB 2.0.
>
> /usr/src/linux/Documentation/usb/ehci.txt
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This archive was generated by hypermail 2a23 : Sun Jan 05 2003 - 20:33:59 AKST