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.\" $OpenBSD: audiotest_gsinfo.1,v 1.3 2007/07/06 01:01:43 jakemsr Exp $
.\"
.\" Copyright (c) 2007 Jacob Meuser <jakemsr@sdf.lonestar.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.\"
.Dd $Mdocdate: July 6 2007 $
.Dt AUDIOTEST_GSINFO 1
.Os
.Sh NAME
.Nm audiotest_gsinfo
.Nd test AUDIO_GETINFO and AUDIO_SETINFO
.Sh SYNOPSIS
.Nm audiotest_gsinfo
.Bk -words
.Op Fl f Ar device
.Ek
.Sh DESCRIPTION
The
.Nm
command performs an
.Ar AUDIO_GETINFO
.Xr ioctl 2
to get the current
.Xr audio 4
settings, then uses these settings in an
.Ar AUDIO_SETINFO
.Xr ioctl 2 .
The options are as follows:
.Bl -tag -width Ds
.It Fl f Ar device
The
.Xr audio 4
device to use.
It defaults to
.Pa /dev/audio .
.El
.Pp
.Nm
first checks that an
.Dv AUDIO_GETINFO
ioctl will succeed.
If it is not successful, it will exit with status 1.
.Pp
If it is successful,
.Nm
will perform an
.Dv AUDIO_SETINFO
ioctl, using the values in its
.Vt audio_info_t
argument that were received in the previous
.Dv AUDIO_GETINFO
ioctl.
If the
.Dv AUDIO_SETINFO
ioctl is successful,
.Nm
will exit with status 0.
.Pp
If the
.Dv AUDIO_SETINFO
ioctl is not successful,
.Nm
will perform an
.Dv AUDIO_SETINFO
ioctl using the default
.Vt audio_info_t
values as given by
.Dv AUDIO_INITINFO .
If this
.Dv AUDIO_SETINFO
is not successful,
.Nm
will exit with status 1.
.Pp
Otherwise,
.Nm
will run a series of
.Dv AUDIO_SETINFO
ioctls where a single field in the
.Vt audio_info_t
structure is set to values from the
.Dv AUDIO_GETINFO
ioctl, the other values being default.
As this series of ioctls is performed,
.Nm
will print the
.Vt audio_info_t
field that is using values from the
.Dv AUDIO_GETINFO
ioctl, as well as the value it is using.
If the ioctl fails,
.Nm
will print
.Dq <- ERROR
immediately following the value.
After all fields of the
.Vt audio_info_t
structure have been used,
.Nm
will exit with status 1.
.Sh SEE ALSO
.Xr ioctl 2 ,
.Xr audio 4
.Sh AUTHORS
.Nm
and this manual page were written by
.An Jacob Meuser Aq jakemsr@sdf.lonestar.org .
|
