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author | Igor Pashev <pashev.igor@gmail.com> | 2013-05-03 21:08:42 +0400 |
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committer | Igor Pashev <pashev.igor@gmail.com> | 2013-05-03 21:08:42 +0400 |
commit | 1058def8e7827e56ce4a70afb4aeacb5dc44148f (patch) | |
tree | 4495d23e7b54ab5700e3839081e797c1eafe0db9 /misc/man9ossddk/ossddk_adev_set_rates.9ossddk | |
download | oss4-upstream/4.2-build2006.tar.gz |
Imported Upstream version 4.2-build2006upstream/4.2-build2006upstream
Diffstat (limited to 'misc/man9ossddk/ossddk_adev_set_rates.9ossddk')
-rw-r--r-- | misc/man9ossddk/ossddk_adev_set_rates.9ossddk | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/misc/man9ossddk/ossddk_adev_set_rates.9ossddk b/misc/man9ossddk/ossddk_adev_set_rates.9ossddk new file mode 100644 index 0000000..a24d8a1 --- /dev/null +++ b/misc/man9ossddk/ossddk_adev_set_rates.9ossddk @@ -0,0 +1,87 @@ +'\" te +.\" Copyright (c) 2005, 4Front Technologies 2005\&. +.TH ossddk_adev_set_rates 9ossddk "12 Sep 2005" "SunOS 5.10" "OSS DDK Services" +.SH "NAME" +ossddk_adev_set_rates \- Set the supported sampling rates +.PP +.SH "SYNOPSIS" +.nf +#include <sys/soundcard.h> +.LP +#include <sys/ossddk/ossddk.h> +.fi +.LP +\fBvoid\fR ossddk_adev_set_rates(\fBint \fIdev\fP, \fBint \fImin_rate\fP, \fBint \fImax_rate\fP, \fBint \fInrates\fP, \fBint \fIrates[20]\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_rate\fR +.in +16n +.rt +The minimum sampling rate supported by the device. +.in -16n +.sp +.ne 2 +.mk +\fB\fImax_rate\fR +.in +16n +.rt +The maximum sampling rate supported by the device. +.in -16n +.sp +.ne 2 +.mk +\fB\fInrates\fR +.in +16n +.rt +Number of discrete rates (0 to 20). +.in -16n +.sp +.ne 2 +.mk +\fB\fIrates[20]\fR +.in +16n +.rt +Pointer to an array containing up to 20 sampling rates (in ascending order). +.in -16n +.PP +.SH "DESCRIPTION" +.PP +This function sets meta information that applications may obtain using the +\fISNDCTL_AUDIOINFO(2oss)\fR ioctl call. There are three ways how this function can be +called. In both cases the min_rate and max_rate parameters must be set properly. +.PP +1) If the device supports any rates between the minimum and maximum the nrates parameter +must be set to 0. The rates parameter can be null. +.LP +2) If the device supports just few rates (up to 20) you should pass the number of +supported rates in \fInrates\fR and pointer to an array (of int) in the \fIrates\fR +parameter. Rates stoored in the array must be in increasing order. +.LP +3) If there are more than 20 possible rates you should set nrates=0 and rates=NULL. +.PP +The driver can change the supported rate information whenever necessary. For example if +a change in device's operating mode changes the supported rates too. +.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 |