UMODEM(4)              FreeBSD Kernel Interfaces Manual              UMODEM(4)

NAME
     umodem - USB Communication Device Class serial (CDC ACM) driver

SYNOPSIS
     To compile this driver into the kernel, place the following lines in your
     kernel configuration file:

           device usb
           device ucom
           device umodem

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

           umodem_load="YES"

DESCRIPTION
     The umodem driver provides support for USB modems and serial devices that
     implement the Communication Device Class Abstract Control Model (CDC
     ACM).  It also provides device-side CDC ACM support.  Supported modems
     are basically standard serial line modems, but they are accessed via USB
     instead.  They support a regular AT command set.  The commands can either
     be multiplexed with the data stream or handled through separate pipes.
     In the latter case the AT commands have to be given on a device separate
     from the data device.

     The device is accessed through the ucom(4) driver which makes it behave
     like a tty(4).

HARDWARE
     Devices supported by the umodem driver include:

     •   3Com 5605
     •   Curitel PC5740 Wireless Modem
     •   Kyocera AH-K3001V Mobile Phone(WILLCOM)
     •   Kyocera WX320K Mobile Phone(WILLCOM)
     •   Metricom Ricochet GS USB wireless modem
     •   Sierra MC5720 Wireless Modem
     •   Yamaha Broadband Wireless Router RTW65b
     •   ELSA MicroLink 56k USB modem
     •   Sony Ericsson W810i phone
     •   Sonim XP5300 Force

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

SEE ALSO
     tty(4), ucom(4), usb(4)

HISTORY
     The umodem driver appeared in NetBSD 1.5.  This manual page was adopted
     from NetBSD by Tom Rhodes <trhodes@FreeBSD.org> in April 2002.

BUGS
     Only modems with multiplexed commands and data are supported at the
     moment.

FreeBSD 13.1-RELEASE-p6         April 26, 2017         FreeBSD 13.1-RELEASE-p6