From: u.kleine-koenig@pengutronix.de (Uwe Kleine-König)
To: linux-arm-kernel@lists.infradead.org
Subject: not able to understand 'icedcc_putc'
Date: Tue, 2 Feb 2010 09:33:53 +0100 [thread overview]
Message-ID: <20100202083353.GA22848@pengutronix.de> (raw)
In-Reply-To: <7f245da81001290848n5630c6b6q68f19369fd0ad5aa@mail.gmail.com>
Hello,
On Fri, Jan 29, 2010 at 10:18:55PM +0530, Chetan Nanda wrote:
> Hello,
>
> I am newbie to ARM core. This might be a very silly question, but I am not
> able to understand how 'icedcc_putc' function prints a character on console
> (UART).
It doesn't, so no wonder you don't see how it does.
icedcc_putc uses the debug communications channel. You can read it via
jtag.
If you want to understand the output on the serial console, you have to
look into <mach/uncompress.h>.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-K?nig |
Industrial Linux Solutions | http://www.pengutronix.de/ |
next prev parent reply other threads:[~2010-02-02 8:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-29 16:48 not able to understand 'icedcc_putc' Chetan Nanda
2010-02-02 8:33 ` Uwe Kleine-König [this message]
2010-02-02 8:41 ` Chetan Nanda
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