U3G(4) FreeBSD Kernel Interfaces Manual U3G(4)
NAME
u3g - USB support for 3G and 4G cellular modems
SYNOPSIS
To compile this driver into the kernel, place the following lines in your
kernel configuration file:
device usb
device ucom
device u3g
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 be automatically loaded
by devd(8) when the device is connected.
DESCRIPTION
The u3g driver provides support for USB-to-serial interfaces exposed by
many 3G and 4G modems. The supported adapters provide the necessary
modem port for ppp(8), or net/mpd5 connections. Depending on the
specific device, extra ports provide other functions such as an
additional command port, diagnostic port, GPS receiver port, or SIM
toolkit port.
The device is accessed through the ucom(4) driver which makes it behave
like a tty(4).
In some adapters 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).
HARDWARE
The u3g driver supports the following cellular modems:
o Option GT 3G Fusion, GT Fusion Quad, etc. (3G only, not WLAN)
o Option GT 3G, GT 3G Quad, etc.
o Vodafone Mobile Connect Card 3G
o Vodafone Mobile Broadband K3772-Z
o Qualcomm Inc. CDMA MSM
o Qualcomm Inc. GOBI 1000, 2000 and 3000 devices with MDM1000 or
MDM2000 chipsets
o QUECTEL BGX, ECX, EGX, EMX, EPX, RGX series
o Quectel EM160R (see CAVEATS)
o Huawei B190, E180v, E220, E3372, E3372v153, E5573Cs322, ('<Huawei
Mobile>')
o Novatel U740, MC950D, X950D, etc.
o Sierra MC875U, MC8775U, etc.
o Panasonic CF-F9 GOBI
Many more are supported, see /sys/dev/usb/serial/u3g.c for the complete
list.
FILES
/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
EXAMPLES
Connect to the Internet using the default configuration:
ppp -background u3g
SEE ALSO
tty(4), ucom(4), usb(4), usb_quirk(4), devd(8), ppp(8), usbconfig(8)
HISTORY
The u3g driver appeared in FreeBSD 7.2, is based on the uark(4) driver,
and written by Andrea Guzzo <
[email protected]> in September 2008.
AUTHORS
The u3g driver was written by Andrea Guzzo <
[email protected]> and Nick
Hibma <
[email protected]>. Hardware for testing was provided by AnyWi
Technologies, Leiden, NL.
CAVEATS
The Quectel EM160R is not officially supported in PPP mode. In order to
use it in PPP mode, the ctsrts option needs to be turned off, for
example, by adding:
set ctsrts off
to /etc/ppp/ppp.conf in the correct section.
BUGS
The automatic mode switch from disk mode to modem mode does not work
unless the driver is either built into the kernel or loaded before the
device is connected.
The GOBI-based devices require the gobi loader available from the
sysutils/gobi_loader port.
FreeBSD 14.1-RELEASE-p8 December 5, 2024 FreeBSD 14.1-RELEASE-p8