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Date: Fri, 24 Jul 2009 13:48:05 +0100 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: Oliver Neukum <oliver@...kum.org> Cc: "RĂ©mi Denis-Courmont" <remi.denis-courmont@...ia.com>, Marcel Holtmann <marcel@...tmann.org>, ext Dan Williams <dcbw@...hat.com>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org> Subject: Re: [PATCH] USB host CDC Phonet network interface driver > No, I was thinking of having two full devices, a data channel and a control > channel for devices that really talk AT commands natively. If the hardware does it great, however for things like a 3G modem you have the problem that the PPP is over the AT command channel which may itself be multiplexed. And the muxing in question is *ugly* - sort of HDLC and LAP-B done wrong. Alan -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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