strange USB timing issue with u3g

[Mike Tancsa]

On 3/13/2019 11:46 AM, CeDeROM wrote:
> Hey there! I also noticed problems with U3G module with my new Quectel
> EC25E miniPCI-E module replaced the Sierra Wireless on my Panasonic
> CF-C2 notebook.. sometimes (very very often) the /dev/cuaU* is not
> created properly so PPP has nothing to connect to..
>
> So I have to use simple usbconfig to reset devices at boot.. but that
> also sometimes does not help as devices seems to have random order..
> and it causes problems with other devices that are already
> attached/enumerated.. this is a bit unreliable..
>
> I was wondering is there a problem with U3G module and how could I
> quick fix it without the module rewrite?

I am not sure its an actual problem with the u3g module per se. The
error can happen with or without the u3g module loaded, so even as a
ugen device, it will fail to attach.

    ---Mike


> -- 
> -------------------
> Mike Tancsa, tel +1 519 651 3400 x203
> Sentex Communications, mike at sentex.net
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