Hello,
Please don't do this on a public community supported discussions forum.
First, the chan_dongle project on google has been dead for a while now.
The fork has alot of updates and better supports current versions of asterisk.
For your particular problem, I believe you have to use usb_modeswitch package for your distro.
Google a little bit about it. It seems that's what you need. Also, make sure the right permissions are set to the /dev/ttyUSB* files either manually or via udev rules !
Hope this helps!