RE: [ECOS] Driver Development approach

["Trenton D. Adams" <tadams at extremeeng dot com>]

Ah, see the headers below.  The list is CCing to it's self and creating
duplicate messages, no?



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Date: Tue, 12 Jun 2001 19:08:50 +0100
From: Jonathan Larmour <jlarmour@redhat.com>
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To: "Trenton D. Adams" <tadams@extremeeng.com>
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Subject: Re: [ECOS] Driver Development approach






-----Original Message-----
From: ecos-discuss-owner@sources.redhat.com
[mailto:ecos-discuss-owner@sources.redhat.com] On Behalf Of Jonathan
Larmour
Sent: Tuesday, June 12, 2001 12:09 PM
To: Trenton D. Adams
Cc: 'eCos Discussion'
Subject: Re: [ECOS] Driver Development approach


"Trenton D. Adams" wrote:
> 
> I've been reading up on driver development.  I want some advice on my 
> approach.
> 
> I was thinking that I could make a driver that simply prints to stdout

> when cyg_io_write() or cyg_io_read() are called on it.  I could make a

> test harness program, and run it through GDB.  Then when connecting 
> through GDB, I would know that it's working because the messages would

> be output to me.
> 
> Will this even work?  If so, is this a good approach to learn how the 
> drivers interact with the system?

I think it could work, while the cyg_io stuff isn't particularly
intended to be re-entrant, I think it is anyway.

Jifl
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