linux-kernel - Re: [PATCH] usb: cp210x: Added support for GPIO (CP2103/4/5)

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Date:	Sat, 5 May 2012 07:57:32 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Preston Fick <pffick@...il.com>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
	preston.fick@...abs.com,
	"linux-arm-kernel@...ts.arm.linux.org.uk" 
	<linux-arm-kernel@...ts.arm.linux.org.uk>
Subject: Re: [PATCH] usb: cp210x: Added support for GPIO (CP2103/4/5)

On Sat, May 05, 2012 at 12:01:37PM +0100, Alan Cox wrote:
> > Will the new ldisc mess with the tty stuff to prevent "normal" serial
> > data and line settings from being handled properly?  If not, that all
> > looks very good to me, thanks for working this out.
> 
> It'll have no effect on that. What it will do is provide a way for things
> like ISO7816 ldiscs to use the extra pins (as they can call from the
> ldisc into the gpio layer) and to know the mapping of the extra control
> wires, which varies by device.

Ok, that sounds good to me.
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