1.\" $NetBSD: rtii.4,v 1.5 2002/01/02 02:14:48 wiz Exp $ 2.\" $OpenBSD: rtii.4,v 1.2 2001/12/05 11:27:44 mickey Exp $ 3.\" $RuOBSD: rtii.4,v 1.3 2001/10/26 05:38:44 form Exp $ 4.\" 5.\" Copyright (c) 2001 Vladimir Popov <jumbo@narod.ru> 6.\" All rights reserved. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 24.\" ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.Dd October 8, 2001 29.Dt RTII 4 30.Os 31.Sh NAME 32.Nm rtii 33.Nd AIMS Lab Radiotrack II FM radio device driver 34.Sh SYNOPSIS 35.Cd option RADIO_TEA5759 36.Pp 37.Cd "rtii0 at isa? port 0x20c" 38.Cd "rtii1 at isa? port 0x30c" 39.Cd "radio* at rtii0" 40.Sh DESCRIPTION 41The 42.Nm 43driver provides support for the AIMS Lab Radiotrack II FM radio tuners. 44.Pp 45The Radiotrack II is a stereo FM tuner that allows to tune in the range 4687.5 - 108.0 MHz, report signal status on the current frequency, force 47audio output to mono, perform hardware signal search, and has an internal 48AFC. 49.Pp 50The Radiotrack II cards take only one I/O port. 51The I/O port is set by the driver to the value specified in the configuration 52file and must be either 0x20c or 0x30c. 53.Pp 54Philips Semiconductors released two almost identical chips TEA5757 and 55TEA5759. 56The TEA5757 is used in FM-standards in which the local oscillator frequency 57is above the radio frequency (e.g. European and American standards). 58The TEA5759 is the version in which the oscillator frequency is below 59the radio frequency (e.g. Japanese standards). 60The option 61.Va RADIO_TEA5759 62changes the algorithm of frequency calculation for the TEA5757 based cards 63to conform with the Japanese standards. 64.Sh SEE ALSO 65.Xr isa 4 , 66.Xr radio 4 67.Sh HISTORY 68The 69.Nm 70device driver appeared in 71.Ox 3.0 72and 73.Nx 1.6 . 74.Sh AUTHORS 75The 76.Nm 77driver was written by Vladimir Popov and Maxim Tsyplakov. 78The man page was written by Vladimir Popov. 79