diff --git a/share/examples/sound/mmap-usleep.c b/share/examples/sound/mmap-usleep.c
new file mode 100644
--- /dev/null
+++ b/share/examples/sound/mmap-usleep.c
@@ -0,0 +1,118 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 Goran Mekić
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "oss.h"
+
+int
+main(int argc, char *argv[])
+{
+	int ch, rc, bytes;
+	int verbose = 0, oldptr = 0;
+	count_info ci = {0, 0, -1};
+	oss_syncgroup sync_group = {0, 0, {0}};
+	struct config config_in = {
+		.device = "/dev/dsp",
+		.mode = O_RDONLY | O_EXCL | O_NONBLOCK,
+		.format = AFMT_S32_NE,
+		.sample_rate = 48000,
+		.mmap = 1,
+	};
+	struct config config_out = {
+		.device = "/dev/dsp",
+		.mode = O_WRONLY | O_EXCL | O_NONBLOCK,
+		.format = AFMT_S32_NE,
+		.sample_rate = 48000,
+		.mmap = 1,
+	};
+
+	while ((ch = getopt(argc, argv, "v")) != -1) {
+		switch (ch) {
+		case 'v':
+			verbose = 1;
+			break;
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	oss_init(&config_in);
+	oss_init(&config_out);
+
+	/* Allocate and mmap buffers */
+	bytes = config_in.buffer_info.bytes < config_out.buffer_info.bytes
+		? config_in.buffer_info.bytes
+		: config_out.buffer_info.bytes;
+
+	/* Configure and start sync group */
+	sync_group.mode = PCM_ENABLE_INPUT;
+	if (ioctl(config_in.fd, SNDCTL_DSP_SYNCGROUP, &sync_group) < 0)
+		err(1, "Failed to add input to syncgroup");
+	sync_group.mode = PCM_ENABLE_OUTPUT;
+	if (ioctl(config_out.fd, SNDCTL_DSP_SYNCGROUP, &sync_group) < 0)
+		err(1, "Failed to add output to syncgroup");
+	if (ioctl(config_in.fd, SNDCTL_DSP_SYNCSTART, &sync_group.id) < 0)
+		err(1, "Starting sync group failed");
+
+	while (ci.ptr != 0) {
+		if (ioctl(config_out.fd, SNDCTL_DSP_GETOPTR, &ci) < 0)
+			err(1, "Failed to get output pointer");
+	}
+	/* Main loop */
+	for (;;) {
+		if (ioctl(config_out.fd, SNDCTL_DSP_GETOPTR, &ci) < 0)
+			err(1, "Failed to get output pointer");
+		if (verbose) {
+			if (oldptr > ci.ptr)
+				printf("\nO: ");
+			printf("%d, ", ci.ptr);
+		}
+		if (oldptr < ci.ptr)
+			memcpy(config_out.buf + oldptr,
+			       config_in.buf + oldptr,
+			       ci.ptr - oldptr);
+		else if (oldptr > ci.ptr) {
+			memcpy(config_out.buf + oldptr,
+			       config_in.buf + oldptr,
+			       config_in.buffer_info.bytes - oldptr);
+			memcpy(config_out.buf, config_in.buf, ci.ptr);
+		}
+		oldptr = ci.ptr;
+		usleep(1000);
+	}
+
+	/* Cleanup */
+	if (munmap(config_in.buf, config_in.buffer_info.bytes) != 0)
+		err(1, "Memory unmap failed");
+	config_in.buf = NULL;
+	if (munmap(config_out.buf, config_out.buffer_info.bytes) != 0)
+		err(1, "Memory unmap failed");
+	config_out.buf = NULL;
+	close(config_in.fd);
+	close(config_out.fd);
+
+	return (0);
+}