freebsd-skq/share/man/man4/ufm.4

.\" Copyright (c) 2003 M. Warner Losh
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.Dd November 22, 2006
.Dt UFM 4
.Os
.Sh NAME
.Nm ufm
.Nd USB driver for Cypress Semiconductor FM Radio
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following line in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device ufm"
.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
ufm_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
driver provides support for the D-Link/GEMTEK FM tuner.
The USB interface chip is the common Cypress 63001, and the tuner is a
Philips TEA5757 radio chip that uses a serial interface to set the
tuner parameters.
This design is used in the D-Link DSB-R100 USB Radio.
.Pp
The
.Nm
device must be configured in the kernel, along with
.Xr usb 4
and one of the
.Xr uhci 4
or
.Xr ohci 4
controllers.
.Pp
Subsequently, the
.Pa /dev/ufm0
device can be used by userland applications.
.Sh FILES
.Bl -tag -width ".Pa /dev/ufm0" -compact
.It Pa /dev/ufm0
blocking device node
.El
.Sh SEE ALSO
.Xr ohci 4 ,
.Xr uhci 4 ,
.Xr usb 4
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An M. Warner Losh Aq imp@FreeBSD.org
for
.Fx .