linux-kernel - RE: [linux-usb-devel] [RFC][PATCH 0/2] x86

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Date:	Wed, 6 Dec 2006 13:08:14 -0800
From:	"Lu, Yinghai" <yinghai.lu@....com>
To:	"Andi Kleen" <ak@...e.de>
cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"David Brownell" <david-b@...bell.net>,
	linux-usb-devel@...ts.sourceforge.net,
	"Peter Stuge" <stuge-linuxbios@....org>,
	"Stefan Reinauer" <stepan@...esystems.de>,
	"Greg KH" <gregkh@...e.de>, linux-kernel@...r.kernel.org,
	linuxbios@...uxbios.org
Subject: RE: [linux-usb-devel] [RFC][PATCH 0/2] x86_64 Early usb debug
 port support.

-----Original Message-----
From: Andi Kleen [mailto:ak@...e.de] 
Sent: Wednesday, December 06, 2006 12:59 PM

>I haven't looked how the other usb_debug works -- if it's polled
>too then it wouldn't have much advantage.

Need to verify if the two sides of debug cable are identical. 

>And it would be good if the late usb_debug still wouldn't rely
>on interrupts.

Yes, esp. when usb can not get irq assigned correctly.

YH


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