az(4) - NetBSD Manual Pages

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


NAME

     az - Aztech/PackardBell radio card device driver


SYNOPSIS

     az0    at isa? port 0x350
     az1    at isa? port 0x358
     radio* at az?


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.


SEE ALSO

     isa(4), radio(4)


HISTORY

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


AUTHORS

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


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).

NetBSD 1.6.2                    October 8, 2001                              1