netdev - Re: [PATCH] USB host CDC Phonet network interface driver

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Message-ID: <20090722101102.4aba96bd@lxorguk.ukuu.org.uk>
Date:	Wed, 22 Jul 2009 10:11:02 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	"Rémi Denis-Courmont" 
	<remi.denis-courmont@...ia.com>,
	ext Dan Williams <dcbw@...hat.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	ext Marcel Holtmann <marcel@...tmann.org>
Subject: Re: [PATCH] USB host CDC Phonet network interface driver

> The AT stuff is really problematic. Look at the hoops ISDN and software
> modem drivers go through to emulate AT commands. I know even of a CDC-ACM
> modem which can't deal with AT commands inline (that's within spec).
> It seems to me we should have a modem API in kernel.

For devices which don't deal in AT commands probably but for devices
whose firmware provides an AT command interface over serial I would
disagree.
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