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NAME

     ucom — USB tty support

SYNOPSIS

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

           device ucom

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

           ucom_load="YES"

DESCRIPTION

     The ucom driver attaches to USB modems, serial ports, and other devices that need to look
     like a tty.  The ucom driver shows a behavior like a tty(4).  This means that normal
     programs such as tip(1) or pppd(8) can be used to access the device.

     The portno locater can be used to decide which port to use for devices that have multiple
     external ports.

BUGS

     Prior to FreeBSD 6.0 ucom created /dev/ucom? rather than the uniform device names created
     today.  Old scripts must be adjusted accordingly.

FILES

     /dev/cuaU?

     /dev/ttyU?

SEE ALSO

     tty(4), uark(4), uchcom(4), uftdi(4), umct(4), umodem(4), uplcom(4), usb(4), uvisor(4),
     uvscom(4)

HISTORY

     The ucom driver was adopted from NetBSD in March of 2002.  This manual page was adopted from
     NetBSD by Tom Rhodes <trhodes@FreeBSD.org> in April 2002.