AZ(4)                     OpenBSD Programmer's Manual                    AZ(4)

NAME
     az - Aztech/PackardBell radio card device driver

SYNOPSIS
     az0   at isa? port 0x358
     az0   at isa? port 0x350
     radio* at az0

DESCRIPTION
     The az driver provides support for the Aztech/PackardBell radio cards.

     The Aztech/PackardBell cards are stereo FM tuners that allow to tune in
     the 87.5-108.0 MHz range.  It is capable to report signal status
     (tuned/not tuned, stereo/mono signal) and force audio output to mono.

     The Aztech cards use only one I/O port.  The I/O port is set by the driv-
     er to the value specified in the configuration file.  The I/O port must
     be one of 0x350 and 0x358.

BUGS
     It is impossible to determine which frequency the card is tuned to.
     Thus, the driver will report an internally stored value even if it is not
     correct (changed by some program that uses direct port access).

SEE ALSO
     isa(4), radio(4)

OpenBSD 3.0                   September 27, 2001                             1
