Re: [PATCH] [v4] tty/powerpc: introduce the ePAPR embeddedhypervisor byte channel driver

From: Greg KH
Date: Thu Aug 25 2011 - 12:00:33 EST


On Thu, Aug 25, 2011 at 10:32:25AM -0500, 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@xxxxxxxxxxxxx>

No, this doesn't work, I need just a fix, as I took your previous patch
already.

greg k-h
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