linux-kernel - Re: [BUG] Loading both ehci-hcd and uhci-hcd drivers causes my printer to fail

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Message-ID: <Pine.LNX.4.44L0.0903091050280.3778-100000@iolanthe.rowland.org>
Date:	Mon, 9 Mar 2009 10:53:33 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Maxim Levitsky <maximlevitsky@...il.com>
cc:	Greg KH <greg@...ah.com>, <linux-usb@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [BUG] Loading both ehci-hcd and uhci-hcd drivers causes my
 printer to fail

On Mon, 9 Mar 2009, Maxim Levitsky wrote:

> Sorry, sorry, sorry.
> 
> is was the CONFIG_USB_EHCI_TT_NEWSCHED that did it.
> I confused both options, without the above option printer works
> flawlessly.

Is your printer connected directly to the computer, or does it go 
through a hub?  (If it is connected directly then EHCI_TT_NEWSCHED 
should not affect it at all.)

If it does go through a hub, does it behave better when you attach it 
directly?

Alan Stern

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