-.\" $OpenBSD: sio_open.3,v 1.55 2022/04/30 08:47:18 ratchov Exp $
+.\" $OpenBSD: sio_open.3,v 1.56 2022/05/30 10:31:59 op Exp $
.\"
.\" Copyright (c) 2007 Alexandre Ratchov <alex@caoua.org>
.\"
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: April 30 2022 $
+.Dd $Mdocdate: May 30 2022 $
.Dt SIO_OPEN 3
.Os
.Sh NAME
mode was selected.
.It Fa rate
The sampling frequency in Hz.
-.It Fa bufsz
-The maximum number of frames that may be buffered.
-This parameter takes into account any buffers, and
-can be used for latency calculations.
-It is read-only.
.It Fa appbufsz
Size of the buffer in frames the application must maintain non-empty
(on the play end) or non-full (on the record end) by calling
fast enough to avoid overrun or underrun conditions.
The audio subsystem may use additional buffering, thus this
parameter cannot be used for latency calculations.
+.It Fa bufsz
+The maximum number of frames that may be buffered.
+This parameter takes into account any buffers, and
+can be used for latency calculations.
+It is read-only.
.It Fa round
Optimal number of frames that the application buffers
should be a multiple of, to get best performance.