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Message-ID: <4762AC35.3010706@anagramm.de>
Date: Fri, 14 Dec 2007 17:15:49 +0100
From: Clemens Koller <clemens.koller@...gramm.de>
To: David Newall <david@...idnewall.com>
CC: Siva Prasad <sprasad@...io.net>, linux-kernel@...r.kernel.org
Subject: Re: printf internals
David Newall schrieb:
> Siva Prasad wrote:
>> I am looking at how exactly does the printf in user programs succeeds in
>> displaying characters to the serial console.
>
> Is it a student assignment? This is so not the right mailing list.
Come on, are we playing hide and seek here?
You can use strace to follow a typical hello world example and
see what device it opens to feed the hello out.
I.e. it can be to the current /dev/ttyX and not to /dev/console
or if you are logged in via SSH to a machine, the device
is again different... or if you use screen, ...
Work your way from there and then use a Linux Source code
Cross Reference (lxr, ask Google for one) and follow the code.
Regards,
--
Clemens Koller
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