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Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
u3g_load="YES"
If neither of the above is done, the driver will automatically be loaded by devd(8) when the device is connected.
The device is accessed through the ucom(4) driver which makes it behave like a tty(4).
(See /sys/dev/usb/serial/u3g.c for the complete list of supported cards for each vendor mentioned above.)
The supported 3G cards provide the necessary modem port for ppp, or mpd connections as well as extra ports (depending on the specific device) to provide other functions (additional command port, diagnostic port, SIM toolkit port).
In some of these devices a mass storage device supported by the umass(4) driver is present which contains Windows and Mac OS X drivers. The device starts up in disk mode (TruInstall, ZeroCD, etc.) and requires additional commands to switch it to modem mode. If your device is not switching automatically, please try to add quirks. See usbconfig(8) and usb_quirk(4).
| /dev/ttyU*.* | for callin ports |
| /dev/ttyU*.*.init
/dev/ttyU*.*.lock | |
|
corresponding callin initial-state and lock-state devices
| |
| /dev/cuaU*.* | for callout ports |
| /dev/cuaU*.*.init
/dev/cuaU*.*.lock | |
| corresponding callout initial-state and lock-state devices | |
ppp -background u3g
| U3G (4) | September 11, 2018 |
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