linux-kernel - Re: [PATCH 6/7] [v2] tty/powerpc: introduce the ePAPR embedded hypervisor byte channel driver

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Date:	Wed, 22 Jun 2011 10:23:32 -0500
From:	Timur Tabi <timur@...escale.com>
To:	<kumar.gala@...escale.com>, <benh@...nel.crashing.org>,
	<greg@...ah.com>, <akpm@...nel.org>,
	<linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
	<linux-console@...r.kernel.org>, <alan@...rguk.ukuu.org.uk>,
	<arnd@...db.de>
Subject: Re: [PATCH 6/7] [v2] tty/powerpc: introduce the ePAPR embedded hypervisor
 byte channel driver

Timur Tabi 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>

I know you guys are busy, but can I get an ACK or two on this patch, if there
are no issues with it?  It's the only one of the seven that doesn't have one.  I
think v2 has addressed all of the concerns raised on version 1.

-- 
Timur Tabi
Linux kernel developer at Freescale

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