Re: net: cdc_ncm, cdc_mbim: allow user to prefer NCM for backwardscompatibility

From: Dave Jones
Date: Thu May 16 2013 - 15:17:24 EST

On Thu, May 16, 2013 at 09:08:23PM +0200, Bjørn Mork wrote:
> Yes, this is a very unfortunate side effect of the userspace/kernel
> split of the MBIM driver combined with the NCM/MBIM "backwards
> compatibility" setting. Which in itself is a bad idea, IMHO.
> I recommend all distros do the same as Debian: Set NCM as default until
> a userspace application with MBIM support is ready and packaged in the
> distro:

Thanks for the pointer. We'll pick that up for the Fedora 3.9 kernels.

Ben, does debian have a commits mailing list for kernel changes ?

> FWIW, I wish we would have thought about this issue before v3.8 was
> released. Then we could have made that patch the mainline default,
> without that being a userspace API change. But we didn't.
> The good news is that Aleksander has done some nice work on the MBIM
> support in ModemManager, so there is a good chance that the next release
> will make this problem go away.

good news indeed!



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