Hi Aleksander:
Maybe Rafal is same as me, newbie to the open source world, not clear
the rules of open source.
Limited by our technical ability and time, in the past , we never work
together with customers to solve issues related to ModemManager
In fact, If the product use ModemManager, the system usually is
Ubuntu/Redhat/Yocto, and the kernel version usually is very new.
We will prepare an article about "How Quectel Modems co-work with
ModeManager"
On November 26, 2020 5:09 PM, Aleksander wrote:
> Hey Carl,
>
> > Quectel has lot of customers, and most of them are use system like
> openwrt, android, others embedded -linux.
> > and the kernel version used is usually is V3.x,V4.x.
> > it will spend very much time (for quectel-self and customers):
> > if we appiled patch to the upstream qmi_wwan
> driver, and back-port the driver to the customer's kernel.
> > So we directly povide qmi_wwan_q.c, suitable for ALL kernel versions
> (V3.2 and later), the customers just need 'copy + paste' it.
> >
>
> That's a fair enough reason I guess. May I suggest, though, that instead of
> always
> telling your customers to use the "qmi_wwan_q"
> driver, you could tell them something like "the EC21 (0x2c7c, 0x0121) is
> supported
> in the Linux kernel since v4.9"? Your driver should be a fallback case when
> the
> user is using an old kernel that doesn't support the module by default, your
> driver should not be the default IMO. Keeping a list with your module versions
> and the kernel versions where support was introduced would be a great source
> of information for your customers ;)
>
> --
> Aleksander
> https://aleksander.es
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