netdev - Re: [ANNOUNCEMENT] NET: usb: sierra

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Message-ID: <4BAF31AE.8070204@ru.mvista.com>
Date:	Sun, 28 Mar 2010 14:38:38 +0400
From:	Sergei Shtylyov <sshtylyov@...sta.com>
To:	Elina Pasheva <epasheva@...rrawireless.com>
CC:	David Brownell <dbrownell@...rs.sourceforge.net>,
	Rory Filer <rfiler@...rrawireless.com>, netdev@...r.kernel.org,
	linux-usb <linux-usb@...r.kernel.org>
Subject: Re: [ANNOUNCEMENT] NET: usb: sierra_net.c driver

Hello.

Elina Pasheva wrote:

> Subject: [ANNOUNCEMENT] NET: usb: sierra_net.c driver
> From: Elina Pasheva <epasheva@...rrawireless.com>
>
> The following is a new Linux driver which exposes certain models of Sierra
> Wireless modems to the operating system as Network Interface Cards (NICs).
>
> This driver requires a version of the sierra.c driver which supports
> blacklisting to work properly. The blacklist in sierra.c rejects the interfaces
> claimed by sierra_net.c. Likewise, the sierra_net.c driver only accepts
> (i.e. whitelists) the interface(s) used for Direct IP traffic.
> The term "Direct IP" is used within Sierra Wireless to refer to these alternate
> data interfaces. The version of sierra.c which supports blacklisting is
> available from the sierra wireless knowledge base page for older kernels. It is
> also available in Linux kernel starting from version 2.6.31.
>
> This driver works with all Sierra Wireless devices configured with PID=68A3
> like USB305, USB306 provided the corresponding firmware version is I2.0
> (for USB305) or M3.0 (for USB306) and later.
> This driver will not work with earlier firmware versions than the ones shown
> above. In this case the driver will issue an error message indicating 
> incompatibility and will not serve the device's DirectIP interface.
>
> Sierra_net.c sits atop a pre-existing Linux driver called usbnet.c.
> A series of hook functions are provided in sierra_net.c which are called by
> usbnet.c in response to a particular condition such as receipt or transmission
> of a data packet. As such, usbnet.c does most of the work of making
> a modem appear to the system as a network device and for properly exchanging
> traffic between the USB subsystem and the Network card interface.
> Sierra_net.c is concerned with managing the data exchanged between the
> so-called Direct-IP interface and the upper layers of the operating system.
>
> The version number of sierra_net.c driver is set to 2.0.
> This patch has been tested on the latest stable kernel-2.6.33.1.
> Signed-off-by: Elina Pasheva <epasheva@...rrawireless.com>
> Signed-off-by: Rory Filer <epasheva@...rrawireless.com>
>   

   I doubt that it's Rory's email address. :-)

WBR, Sergei

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