diff --git a/tests/sys/Makefile b/tests/sys/Makefile
--- a/tests/sys/Makefile
+++ b/tests/sys/Makefile
@@ -31,6 +31,7 @@
 TESTS_SUBDIRS+=		opencrypto
 TESTS_SUBDIRS+=		posixshm
 TESTS_SUBDIRS+=		ses
+TESTS_SUBDIRS+=		sound
 TESTS_SUBDIRS+=		sys
 TESTS_SUBDIRS+=		vfs
 TESTS_SUBDIRS+=		vm
diff --git a/tests/sys/sound/Makefile b/tests/sys/sound/Makefile
new file mode 100644
--- /dev/null
+++ b/tests/sys/sound/Makefile
@@ -0,0 +1,9 @@
+PACKAGE=	tests
+
+TESTSDIR=	${TESTSBASE}/sys/sound
+
+ATF_TESTS_C+=	sndstat
+
+LDFLAGS+=	-lnv
+
+.include <bsd.test.mk>
diff --git a/tests/sys/sound/sndstat.c b/tests/sys/sound/sndstat.c
new file mode 100644
--- /dev/null
+++ b/tests/sys/sound/sndstat.c
@@ -0,0 +1,156 @@
+#include <sys/sndstat.h>
+#include <sys/nv.h>
+
+#include <atf-c.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+ATF_TC(sndstat_nv);
+ATF_TC_HEAD(sndstat_nv, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "/dev/sndstat nvlist test");
+}
+
+ATF_TC_BODY(sndstat_nv, tc)
+{
+	nvlist_t *nvl;
+	const nvlist_t * const *di;
+	const nvlist_t * const *cdi;
+	struct sndstioc_nv_arg arg;
+	size_t nitems, nchans, i, j;
+	int fd, rc;
+	int pchan, rchan;
+
+	fd = open("/dev/sndstat", O_RDONLY);
+	ATF_REQUIRE_MSG(fd >= 0, "/dev/sndstat not found, load sound(4)");
+
+	rc = ioctl(fd, SNDSTIOC_REFRESH_DEVS, NULL);
+	ATF_REQUIRE_EQ(rc, 0);
+
+	arg.nbytes = 0;
+	arg.buf = NULL;
+	rc = ioctl(fd, SNDSTIOC_GET_DEVS, &arg);
+	ATF_REQUIRE_EQ_MSG(rc, 0, "ioctl(SNDSTIOC_GET_DEVS#1) failed");
+
+	arg.buf = malloc(arg.nbytes);
+	ATF_REQUIRE(arg.buf != NULL);
+
+	rc = ioctl(fd, SNDSTIOC_GET_DEVS, &arg);
+	ATF_REQUIRE_EQ_MSG(rc, 0, "ioctl(SNDSTIOC_GET_DEVS#2) failed");
+
+	nvl = nvlist_unpack(arg.buf, arg.nbytes, 0);
+	ATF_REQUIRE(nvl != NULL);
+
+	if (nvlist_empty(nvl) || !nvlist_exists(nvl, SNDST_DSPS))
+		atf_tc_skip("no soundcards attached");
+
+	di = nvlist_get_nvlist_array(nvl, SNDST_DSPS, &nitems);
+	for (i = 0; i < nitems; i++) {
+		nvlist_get_string(di[i], SNDST_DSPS_NAMEUNIT);
+		nvlist_get_bool(di[i], SNDST_DSPS_FROM_USER);
+		nvlist_get_string(di[i], SNDST_DSPS_DEVNODE);
+		nvlist_get_string(di[i], SNDST_DSPS_DESC);
+		nvlist_get_string(di[i], SNDST_DSPS_PROVIDER);
+
+		pchan = nvlist_get_number(di[i], SNDST_DSPS_PCHAN);
+		rchan = nvlist_get_number(di[i], SNDST_DSPS_RCHAN);
+
+		if (pchan && !nvlist_exists(di[i], SNDST_DSPS_INFO_PLAY))
+			atf_tc_fail("playback channel list empty");
+		if (rchan && !nvlist_exists(di[i], SNDST_DSPS_INFO_REC))
+			atf_tc_fail("recording channel list empty");
+
+		if (pchan) {
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_PLAY), SNDST_DSPS_INFO_MIN_RATE);
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_PLAY), SNDST_DSPS_INFO_MAX_RATE);
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_PLAY), SNDST_DSPS_INFO_FORMATS);
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_PLAY), SNDST_DSPS_INFO_MIN_CHN);
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_PLAY), SNDST_DSPS_INFO_MAX_CHN);
+		}
+		if (rchan) {
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_REC), SNDST_DSPS_INFO_MIN_RATE);
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_REC), SNDST_DSPS_INFO_MAX_RATE);
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_REC), SNDST_DSPS_INFO_FORMATS);
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_REC), SNDST_DSPS_INFO_MIN_CHN);
+			nvlist_get_number(nvlist_get_nvlist(di[i],
+			    SNDST_DSPS_INFO_REC), SNDST_DSPS_INFO_MAX_CHN);
+		}
+
+		/* XXX Do we need to skip the TC? userdevs won't have this list */
+		if (!nvlist_exists(di[i], SNDST_DSPS_PROVIDER_INFO))
+			continue;
+
+		nvlist_get_number(
+		    nvlist_get_nvlist(di[i], SNDST_DSPS_PROVIDER_INFO),
+		    SNDST_DSPS_SOUND4_UNIT);
+		nvlist_get_bool(
+		    nvlist_get_nvlist(di[i], SNDST_DSPS_PROVIDER_INFO),
+		    SNDST_DSPS_SOUND4_BITPERFECT);
+		nvlist_get_number(
+		    nvlist_get_nvlist(di[i], SNDST_DSPS_PROVIDER_INFO),
+		    SNDST_DSPS_SOUND4_PVCHAN);
+		nvlist_get_number(
+		    nvlist_get_nvlist(di[i], SNDST_DSPS_PROVIDER_INFO),
+		    SNDST_DSPS_SOUND4_RVCHAN);
+
+		if (!nvlist_exists(nvlist_get_nvlist(di[i],
+		    SNDST_DSPS_PROVIDER_INFO), SNDST_DSPS_SOUND4_CHAN_INFO))
+			atf_tc_fail("channel info list empty");
+
+		cdi = nvlist_get_nvlist_array(
+		    nvlist_get_nvlist(di[i], SNDST_DSPS_PROVIDER_INFO),
+		    SNDST_DSPS_SOUND4_CHAN_INFO, &nchans);
+		for (j = 0; j < nchans; j++) {
+#define NV(type, item) \
+	nvlist_get_ ## type (cdi[j], SNDST_DSPS_SOUND4_CHAN_ ## item)
+			NV(string, NAME);
+			NV(string, PARENTCHAN);
+			NV(number, UNIT);
+			NV(number, LATENCY);
+			NV(number, RATE);
+			NV(number, FORMAT);
+			NV(number, PID);
+			NV(string, COMM);
+			NV(number, INTR);
+			NV(number, XRUNS);
+			NV(number, FEEDCNT);
+			NV(number, LEFTVOL);
+			NV(number, RIGHTVOL);
+			NV(number, HWBUF_FORMAT);
+			NV(number, HWBUF_SIZE);
+			NV(number, HWBUF_BLKSZ);
+			NV(number, HWBUF_BLKCNT);
+			NV(number, HWBUF_FREE);
+			NV(number, HWBUF_READY);
+			NV(number, SWBUF_FORMAT);
+			NV(number, SWBUF_SIZE);
+			NV(number, SWBUF_BLKSZ);
+			NV(number, SWBUF_BLKCNT);
+			NV(number, SWBUF_FREE);
+			NV(number, SWBUF_READY);
+			NV(string, FEEDERCHAIN);
+#undef NV
+		}
+	}
+
+	free(arg.buf);
+	nvlist_destroy(nvl);
+	close(fd);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+	ATF_TP_ADD_TC(tp, sndstat_nv);
+
+	return (atf_no_error());
+}