From mboxrd@z Thu Jan  1 00:00:00 1970
From: oliver.graute@gmail.com (Oliver Graute)
Date: Sat, 29 Apr 2017 13:51:54 +0200
Subject: kgdb debug with ttyUSB0 instead of ttyS0
In-Reply-To: <20170426124919.GA12061@kroah.com>
References: <20170425211138.GA3230@ripley> <20170426043701.GB5734@kroah.com>
	<20170426112355.GA16804@graute-opti>
	<20170426124919.GA12061@kroah.com>
Message-ID: <59047e5e.ab89500a.a0aa4.59b7@mx.google.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On 26/04/17, Greg KH wrote:
> Why do you need to use a notebook where Linux works already for kgdb?
> That's traditionally only used to bring up new hardware platforms.

I just used a old notebook as target to learn how-to debug with kgdb.
inspired by the debugging Chapter 4 in the LDD3 Book.
 
> Also, there is USB serial debugging cables as there is a special mode in
> the USB 2 and 3 controllers that can be enabled to handle serial
> messages without interrupts for console/printk early messages that
> people use.  The cables are not cheap to enable this, but worth it if
> you have to debug this type of target system.

can you point us to such a cable?

Best Regards,

Oliver