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Date: Mon, 12 Jun 2017 16:29:06 +0200
From: Johan Hovold <johan@kernel.org>
To: Lars Melin <larsm17@gmail.com>
Cc: =?iso-8859-1?Q?Bj=F8rn?= Mork <bjorn@mork.no>,
        Johan Hovold <johan@kernel.org>,
        Teemu Likonen <tlikonen@iki.fi>, linux-usb@vger.kernel.org,
        Dan Williams <dcbw@redhat.com>, stable <stable@vger.kernel.org>
Subject: Re: [PATCH] USB: serial: option: add Telewell TW-3G HSPA+ device id
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On Mon, Jun 12, 2017 at 06:02:16PM +0700, Lars Melin wrote:
> On 2017-06-12 17:37, Bj�rn Mork wrote:
> > Lars Melin <larsm17@gmail.com> writes:
> > 
> >> 1c9e:9803 can be added, the other ones may be reserved id's for
> >> products that never reached the market.
> > 
> > Out of curiosity: How do you know these things?
> > 
> > Thanks for very valuable information.  Our lists of supported devices
> > are long enough without lots of dead entries...

> The driver is almost 6 years old and only the first two id's has 
> surfaced on the net or in all the GPL code I have from some of the major 
> Chinese 3G router manufacturers.
> 1c9e:9801 is btw included in a mfgr specific qmi_wwan driver together
> with some other id's which may interest you.
> Tell me if you want to get that driver and I'll mail it to you.
> 
> The driver is written by Qualcomm for Longcheer and Qualcomm is known 
> for including device id's that either never become used or (even worser) 
> will be used for a product with an interface layout not matching what 
> was listed in the big Qualcomm driver .inf file
> 
> I have never seen qcwwan.ndi used for anything else than rmnet/qmiwwan 
> and a single interface without altsetting and with 3 interfaces whereof 
> one is of interrupt type and with interface attributes ff/ff/ff can't 
> possibly be for any other net type protocol.

Thanks for the details.

So I'll only add these two ids while blacklisting interface 3 and 4
respectively.

Thanks,
Johan