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 tuning in the
87.5-108.0 MHz range. They are capable of reporting signal status (tuned/not
tuned, stereo/mono signal) and forcing audio output to mono.
The Aztech cards use only one I/O port. The I/O port is set by the driver 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 to which frequency the card is tuned. Thus, the
driver will report an internally stored value even if it is not correct
(changed by some program that uses direct port access).