linux-kernel - Re: [PATCH] [v3] tty/powerpc: introduce the ePAPR embedded hypervisor byte channel driver

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Message-ID: <CAOZdJXVD6=UizQjgNK-rJm2hDpZG+Gupo6+M3wW-VS7O1rTo_Q@mail.gmail.com>
Date:	Fri, 22 Jul 2011 19:00:40 +0000
From:	Tabi Timur-B04825 <B04825@...escale.com>
To:	"greg@...ah.com" <greg@...ah.com>
CC:	"linuxppc-dev@...abs.org" <linuxppc-dev@...abs.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-console@...r.kernel.org" <linux-console@...r.kernel.org>
Subject: Re: [PATCH] [v3] tty/powerpc: introduce the ePAPR embedded
 hypervisor byte channel driver

On Fri, Jul 8, 2011 at 7:06 PM, Timur Tabi <timur@...escale.com> wrote:
> The ePAPR embedded hypervisor specification provides an API for "byte
> channels", which are serial-like virtual devices for sending and receiving
> streams of bytes.  This driver provides Linux kernel support for byte
> channels via three distinct interfaces:
>
> 1) An early-console (udbg) driver.  This provides early console output
> through a byte channel.  The byte channel handle must be specified in a
> Kconfig option.
>
> 2) A normal console driver.  Output is sent to the byte channel designated
> for stdout in the device tree.  The console driver is for handling kernel
> printk calls.
>
> 3) A tty driver, which is used to handle user-space input and output.  The
> byte channel used for the console is designated as the default tty.
>
> Signed-off-by: Timur Tabi <timur@...escale.com>
> ---

Greg,

I just want to make sure you haven't forgotten this patch.  Will you
be picking it up for 3.1?

-- 
Timur Tabi
Linux kernel developer at Freescale
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