Re: usb 1.1 vs 2.0


Subject: Re: usb 1.1 vs 2.0
From: Greg Madden (pabi@gci.net)
Date: Sun Jan 05 2003 - 16:46:03 AKST


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

-- 
Greg Madden
Precision Air Balance, Inc.
Phone: 907-276-0461
email: pabi@gci.net

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