On Fri, 2015-10-30 at 14:18 +1100, Craig McQueen wrote:
> I'm using ConnMan v1.30 on a BeagleBone Black based system. I've got a
> USB Wi-Fi device, as well as Ethernet.
>
> Is it possible to configure ConnMan so that it will auto-connect Wi-Fi
> even if it's got an Ethernet connection? Ethernet would still be
> "preferred" in the sense of having the default route. But I want Wi-Fi
> to always connect if an auto-connect service is available, even while
> Ethernet is present.
No. ConnMan will autoconnect a newly detected WiFi only if wifi is a
more preferred technology than the already connected ethernet.
> If Wi-Fi connects while Ethernet is unplugged, then later Ethernet is
> plugged in, then they can both be connected at the same time, which is
> good.
Yes. Ethernet is more preferred than WiFi, so it will be selected as the
interface with the default route. As it is more preferred than WiFi, it
will be automatically connected.
But as it is ethernet, it's also a bit special. It will always be
connected on a cable plug-in as documented in doc/service-api.txt,
Connect() method call.
> But if Ethernet connects first, and the USB Wi-Fi device is plugged in
> later, then it won't auto-connect to the configured Wi-Fi service, and
> I wish it would.
WiFi won't autoconnect as ethernet is more preferred than wifi by
default.
> I've read the "Preferred Technologies" section of the ConnMan web site
> documentation page. It sounds as though there are twists indeed. Can
> the "Preferred Technologies" feature be disabled? I tried putting in
> my /etc/connman/main.conf:
>
> PreferredTechnologies =
>
> But that didn't seem to make a difference.
That restores the default behavior, which is the order in which the
services are sorted - and presented in ServicesChanged() signals -
according to connected state, favorite and technology type. With
everything being equal, the default sorting based on technologies is in
src/service.c, service_compare(), and is ethernet, wifi, cellular,
bluetooth, vpn and gadget.
Cheers,
Patrik
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