xref: /freebsd/share/man/man4/ucycom.4 (revision f126890ac5386406dadf7c4cfa9566cbb56537c5)
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2.\" Copyright (c) 2004 Dag-Erling Smørgrav
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28.Dd April 26, 2017
29.Dt UCYCOM 4
30.Os
31.Sh NAME
32.Nm ucycom
33.Nd device driver for Cypress CY7C63743 and CY7C64013 USB to RS232 bridges
34.Sh SYNOPSIS
35To compile this driver into the kernel,
36place the following line in your
37kernel configuration file:
38.Bd -ragged -offset indent
39.Cd "device usb"
40.Cd "device hid"
41.Cd "device ucom"
42.Cd "device ucycom"
43.Ed
44.Pp
45Alternatively, to load the driver as a
46module at boot time, place the following line in
47.Xr loader.conf 5 :
48.Bd -literal -offset indent
49ucycom_load="YES"
50.Ed
51.Sh DESCRIPTION
52The
53.Nm
54driver provides support for the Cypress CY7C63743 and CY7C64013 bridge
55chips.
56These chips were designed to provide a low-cost transition path to USB
57for existing RS232 devices, and have fairly limited capabilities.
58.Pp
59The
60.Nm
61driver behaves like a
62.Xr tty 4 .
63.Sh HARDWARE
64The
65.Nm
66driver currently supports the following devices which incorporate
67Cypress USB to RS232 bridge chips:
68.Pp
69.Bl -bullet -compact
70.It
71DeLorme Earthmate USB GPS receiver
72.El
73.Sh FILES
74.Bl -tag -width "/dev/ttyU*.init" -compact
75.It Pa /dev/ttyU*
76for callin ports
77.It Pa /dev/ttyU*.init
78.It Pa /dev/ttyU*.lock
79corresponding callin initial-state and lock-state devices
80.Pp
81.It Pa /dev/cuaU*
82for callout ports
83.It Pa /dev/cuaU*.init
84.It Pa /dev/cuaU*.lock
85corresponding callout initial-state and lock-state devices
86.El
87.Sh SEE ALSO
88.Xr tty 4 ,
89.Xr ucom 4 ,
90.Xr usb 4
91.Sh HISTORY
92The
93.Nm
94driver first appeared in
95.Fx 5.3 .
96.Sh AUTHORS
97.An -nosplit
98The
99.Nm
100driver and this manual page were written by
101.An Dag-Erling Sm\(/orgrav Aq Mt des@FreeBSD.org .
102