Imported Upstream version 4.2-build2006upstream/4.2-build2006upstream

1 files changed, 63 insertions, 0 deletions

diff --git a/misc/man9ossddk/ossddk_adev_set_channels.9ossddk b/misc/man9ossddk/ossddk_adev_set_channels.9ossddk
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+++ b/misc/man9ossddk/ossddk_adev_set_channels.9ossddk
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+'\" te
+.\"  Copyright (c) 2005, 4Front Technologies 2005\&.
+.TH ossddk_adev_set_channels 9ossddk "12 Sep 2005" "SunOS 5.10" "OSS DDK Services"
+.SH "NAME"
+ossddk_adev_set_channels \- Set the supported channel configuration
+.PP
+.SH "SYNOPSIS"
+.nf
+#include <sys/soundcard.h>
+.LP
+#include <sys/ossddk/ossddk.h>
+.fi
+.LP
+\fBvoid\fR ossddk_adev_set_channels(\fBint \fIdev\fP, \fBint \fImin_channels\fP, \fBint \fImax_channels\fP);
+.PP
+.SH "INTERFACE LEVEL"
+.PP
+Open Sound System specific (OSS 4.0 DDK)\&.
+.PP
+.SH "ARGUMENTS"
+.PP
+.sp
+.ne 2
+.mk
+\fB\fIdev\fR
+.in +16n
+.rt
+OSS audio device number.
+.in -16n
+.sp
+.ne 2
+.mk
+\fB\fImin_channels\fR
+.in +16n
+.rt
+Minimum number of channels (should be at least 1).
+.in -16n
+.sp
+.ne 2
+.mk
+\fB\fImax_channels\fR
+.in +16n
+.rt
+Maximum number of channels supported.
+.in -16n
+.PP
+.SH "DESCRIPTION"
+.PP
+This function sets meta information that can be read using the \fISNDCTL_AUDIOINFO(2oss)\fR ioctl call. It is recommended that the driver calls this function after installing
+the audio device.
+.PP
+This call sets only the bounds to the number of channels supported by the device. It's
+possible that the device doesn't support all possible channel configurations between
+these limits. For example it may support 2 and 8 channels but not anything between
+them. This is OK and the driver developer should not worry about this.
+.PP
+.SH "SEE ALSO"
+.PP
+\fISNDCTL_AUDIOINFO(2oss)\fR
+.LP
+\fIWriting Sound Device Drivers with OSS DDK\fR
+.LP
+\fIOpen Sound System Programmer's Guide\fR