.\" $NetBSD: uftdi.4,v 1.5 2002/02/07 03:15:08 ross Exp $
.\"
.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Lennart Augustsson.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" $FreeBSD: src/share/man/man4/uftdi.4,v 1.1.2.1 2002/11/21 01:28:16 ticso Exp $
.\" $DragonFly: src/share/man/man4/uftdi.4,v 1.5 2007/11/07 09:57:07 hasso Exp $
.\"
.Dd November 11, 2007
.Dt UFTDI 4
.Os
.Sh NAME
.Nm uftdi
.Nd USB support for serial devices based on the FTDI chips
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following lines in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device uftdi"
.Cd "device ucom"
.Ed
.Pp
Alternatively, to load the driver as a
module at boot time, place the following line in
.Xr loader.conf 5 :
.Bd -literal -offset indent
uftdi_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
driver provides support for RS-232 (and possibly RS-485) virtual COM
port functionality in various FTDI chips:
.Pp
.Bl -dash -compact -offset indent
.It
FT8U100AX multi-function hub controller chip
.It
FT8U232AM USB UART chip
.It
FT232 series USB UART chips
.It
FT2232 series dual USB UART/FIFO chips
.El
.Pp
The
.Nm
driver doesn't support any other serial protocol supported by these chips.
These protocols might be supported by libftdi userspace library.
.Pp
The device is accessed through the
.Xr ucom 4
driver which makes it behave like a
.Xr tty 4 .
.Sh SEE ALSO
.Xr tty 4 ,
.Xr ucom 4 ,
.Xr usb 4
.Rs
.%T libftdi
.%O http://www.intra2net.com/de/produkte/opensource/ftdi/
.Re
.Sh HISTORY
The
.Nm
driver
appeared in
.Nx 1.5 .