RT(4)

RT(4) | Kernel Interfaces Manual | RT(4)

# NAME

rt — AIMS Lab Radiotrack FM radio device driver

# SYNOPSIS

rt0 at isa? port 0x20c
rt1 at isa? port 0x284
rt2 at isa? port 0x30c
rt3 at isa? port 0x384
radio* at rt?

# DESCRIPTION

The rt driver provides support for the AIMS Lab Radiotrack FM radio tuners and compatible RadioReveal RA300 and SoundForte RadioX SF16-FMI FM radio tuners.

The Radiotrack is a stereo FM tuner that allows to tune in the range 87.5 - 108.0 MHz, report signal status on the current frequency, and force audio output to mono.

The Radiotrack cards take only one I/O port. The I/O port is set by the driver to the value specified in the configuration file and must be either 0x20c or 0x30c.

# SEE ALSO

isa(4), radio(4)

# HISTORY

The rt device driver appeared in OpenBSD 3.0 and NetBSD 1.6.

# AUTHORS

The rt driver was written by Vladimir Popov and Maxim Tsyplakov. The man page was written by Vladimir Popov.

# BUGS

Support for the SF16-FMI cards is rather ugly, volume control is not working and the driver can not correctly determine signal state.

October 8, 2001 | NetBSD 7.0