linux-kernel - Re: [tip:x86/doc] x86/doc: mini-howto for using earlyprintk=dbgp

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Date:	Thu, 05 Mar 2009 16:09:55 -0800
From:	Daniel Walker <dwalker@...o99.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Yinghai Lu <yinghai@...nel.org>, mingo@...hat.com,
	hpa@...or.com, linux-kernel@...r.kernel.org, ebiederm@...ssion.com,
	akpm@...ux-foundation.org, gregkh@...e.de, tglx@...utronix.de,
	sarah.a.sharp@...el.com, mingo@...e.hu,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:x86/doc] x86/doc: mini-howto for using earlyprintk=dbgp

On Thu, 2009-03-05 at 15:59 -0800, Randy Dunlap wrote:

> > - a.) Host/target system needs to have USB debug port capability.
> > + a.) You will need two USB ports. One on the client/console system and one on 
> > +     the target system.
> > + 
> > + b.) The client/console and target USB ports must have the debug port
> > +     capability.
> 
> Is that correct on the (ugh, I think that the naming/terminology is
> still mucked up, but you didn't do that) host/target system?
> 
> On the client/console (which I would call the host and I would call the
> "Host/target" here just the Target system), a USB debug port is needed,
> but on the Host/target, it should just look like a USB device.
> At least that was the intent AFAIK/IIRC.  No?
> 

>>From the rest of document I assumed Host/target was referring to both
sides of the connection. So you would need USB on both sides for this
thing to work. I assumed Client/console was just the host. I guess that
is all kind of confusing tho ..

Daniel

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