Date: Thu, 24 Feb 2005 10:49:28 -0800
From: Greg KH <greg@kroah.com>
To: Lukas Hejtmanek <xhejtman@mail.muni.cz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: USB 2.0 Mass storage device
Message-ID: <20050224184928.GA11490@kroah.com>
References: <20050224175918.GA7627@mail.muni.cz> <20050224181347.GA10847@kroah.com> <20050224182300.GA7778@mail.muni.cz>
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On Thu, Feb 24, 2005 at 07:23:00PM +0100, Lukas Hejtmanek wrote:
> On Thu, Feb 24, 2005 at 10:13:47AM -0800, Greg KH wrote:
> > Is the ehci-hcd driver loaded?  And is your device a high speed one?
> > USB 2.0 support does not mean that it actually goes at high speeds, I
> > have a USB 2.0 "compliant" low speed USB keyboard here :)
> 
> Yes, ehci-hcd driver is loaded. (kernel is 2.6.11-rc3-bk4)
> 
> This is the device:
> http://www.msi.com.tw/program/support/download/dld/spt_dld_detail.php?UID=607&kind=6
> 
> Btw, I thought, that ehci-hcd driver handles both usb 2.0 and 1.1. Does it?

No, it hands off the usb 1.1 devices to the usb 1 core inside it.  This
is either uhci or ohci, depending on your controller chip.

Unless you put a USB 2.0 hub in front of a usb 1.1 device, then it gets
more complicated, but we'll just ignore that issue for now...

What does /proc/bus/usb/devices show for this device?

thanks,

greg k-h
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