1.\" $NetBSD: gtp.4,v 1.4 2014/03/18 18:20:39 riastradh Exp $ 2.\" $OpenBSD: gtp.4,v 1.9 2007/05/31 19:19:50 jmc Exp $ 3.\" 4.\" Copyright (c) 2002 Vladimir Popov <jumbo@narod.ru> 5.\" All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 22.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 23.\" ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26.\" 27.\" .Dd $Mdocdate$ 28.Dd March 26, 2011 29.Dt GTP 4 30.Os 31.Sh NAME 32.Nm gtp 33.Nd Gemtek PCI FM radio device 34.Sh SYNOPSIS 35.Cd "gtp* at pci? flags 0x00" 36.Cd "radio* at gtp?" 37.Sh DESCRIPTION 38The 39.Nm 40driver provides support for the Gemtek PCI and Guillemot MaxiRadio FM2000 41FM radio tuners. 42.Pp 43The Gemtek PCI cards are stereo FM tuners that can tune in the range 4487.5 \- 108.0 MHz, report signal status and stereo/mono on the current 45frequency, force audio output to mono, perform hardware signal search, 46and have an internal AFC. 47.Pp 48The card is based on the TEA5757 chip; see 49.Xr radio 4 50for details. 51.Pp 52The flags control the driver behavior. 53For example, with flags 0x01 the driver 54will assume that a TEA5759 chip is used. 55.Sh SEE ALSO 56.Xr intro 4 , 57.Xr pci 4 , 58.Xr radio 4 , 59.Xr radio 9 60.Sh HISTORY 61The 62.Nm 63device driver appeared in 64.Ox 3.2 65and subsequently in 66.Nx 1.6 67wherein it replaced the 68.Xr mr 4 69driver. 70.Sh AUTHORS 71The 72.Nm 73driver and the man page was written by 74.An Vladimir Popov Aq Mt jumbo@narod.ru . 75.Sh BUGS 76It is impossible to determine which frequency the card is tuned to. 77Thus, the driver will report an internally stored value even if it is not 78correct (changed by some program that uses direct port access). 79