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