xref: /freebsd/share/man/man4/ucom.4 (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1.\" $NetBSD: ucom.4,v 1.9 2002/03/22 00:39:40 augustss Exp $
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6.\" This code is derived from software contributed to The NetBSD Foundation
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37.\" $FreeBSD$
38.\"
39.Dd November 18, 2006
40.Dt UCOM 4
41.Os
42.Sh NAME
43.Nm ucom
44.Nd USB tty support
45.Sh SYNOPSIS
46To compile this driver into the kernel,
47place the following line in your
48kernel configuration file:
49.Bd -ragged -offset indent
50.Cd "device ucom"
51.Ed
52.Pp
53Alternatively, to load the driver as a
54module at boot time, place the following line in
55.Xr loader.conf 5 :
56.Bd -literal -offset indent
57ucom_load="YES"
58.Ed
59.Sh DESCRIPTION
60The
61.Nm
62driver attaches to USB modems, serial ports, and other devices that need
63to look like a tty.
64The
65.Nm
66driver shows a behavior like a
67.Xr tty 4 .
68This means that normal programs such as
69.Xr tip 1
70or
71.Xr pppd 8
72can be used to access the device.
73.Pp
74The
75.Va portno
76locater can be used to decide which port to use for devices that have
77multiple external ports.
78.Sh BUGS
79Prior to
80.Fx 6.0
81.Nm
82created
83.Pa /dev/ucom?
84rather than the uniform device names created today.
85Old scripts must be adjusted accordingly.
86.Sh FILES
87.Bl -tag -width ".Pa /dev/cuaU?"
88.It Pa /dev/cuaU?
89.It Pa /dev/ttyU?
90.El
91.Sh SEE ALSO
92.Xr tty 4 ,
93.Xr uark 4 ,
94.Xr uftdi 4 ,
95.Xr umct 4 ,
96.Xr umodem 4 ,
97.Xr uplcom 4 ,
98.Xr usb 4 ,
99.Xr uvisor 4 ,
100.Xr uvscom 4
101.Sh HISTORY
102The
103.Nm
104driver was adopted from
105.Nx
106in March of 2002.
107This manual page was adopted from
108.Nx
109by
110.An Tom Rhodes Aq trhodes@FreeBSD.org
111in April 2002.
112