Cannot open serial device /dev/ttyUSB0

[Sylvain Munaut]

Hi,

> Thanks for help, but ModemManager doesn't seem to be an issue. Question:
> Does "Cannot open serial device /dev/ttyUSB0" error mean that
> it is unable to connect to my USB adapter or that there might not be a phone
> connected on the other end of the adapter?

It means it can't open the char device ... basically the call to
open("/dev/ttyUSB0") failed somehow. nothing to do with the phone.

Cheers,

    Sylvain