Patch on unsupported AT command

[Marcel Holtmann]

Hi Yang,

> >> > > I think this might need a GAtChat quirk function where we can add extra
> >> > > terminator responses that will be recognized. And maybe even translated
> >> > > into something meaningful.
> >> >
> >> > Originally I had the terminators freely definable on the GAtChat + some
> >> > hardcoded ones, but abandoned that approach since it didn't seem useful.
> >> > Perhaps this needs to be resurrected.
> >> >
> >> > > Denis, or do you want this quirked in every plugin or modem driver?
> >> >
> >> > I do prefer non-standard terminators to be setup in the plugin/driver.
> >>
> >> I meant adding something like g_at_chat_add_terminator() or so.
> >
> >Yes, that is what I meant as well.
> 
> Attached is the patch to support plugin specific terminator, and it supports Huawei's special one "COMMAND NOT SUPPORT".

you need to split this into a GAtChat specific patch and oFono plugin
patch.

Regards

Marcel