diff --git a/sys/arch/i386/pnpbios/ess_pnpbios.c b/sys/arch/i386/pnpbios/ess_pnpbios.c
new file mode 100644
index 000000000000..4bbee03eb56a
--- /dev/null
+++ b/sys/arch/i386/pnpbios/ess_pnpbios.c
@@ -0,0 +1,134 @@
+/*	$NetBSD: ess_pnpbios.c,v 1.1 2000/02/15 17:12:54 nathanw Exp $	*/
+
+/*-
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Nathan J. Williams.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/param.h>
+#include <sys/systm.h>
+#include <sys/errno.h>
+#include <sys/ioctl.h>
+#include <sys/syslog.h>
+#include <sys/device.h>
+#include <sys/proc.h>
+
+#include <machine/bus.h>
+
+#include <sys/audioio.h>
+#include <dev/audio_if.h>
+#include <dev/midi_if.h>
+#include <dev/mulaw.h>
+
+#include <dev/isa/isavar.h>
+#include <dev/isa/isadmavar.h>
+
+#include <i386/pnpbios/pnpbiosvar.h>
+
+#include <dev/isa/essreg.h>
+#include <dev/isa/essvar.h>
+
+int ess_pnpbios_match __P((struct device *, struct cfdata *, void *));
+void ess_pnpbios_attach __P((struct device *, struct device *, void *));
+
+struct cfattach ess_pnpbios_ca = {
+	sizeof(struct ess_softc), ess_pnpbios_match, ess_pnpbios_attach
+};
+
+int
+ess_pnpbios_match(parent, match, aux)
+	struct device *parent;
+	struct cfdata *match;
+	void *aux;
+{
+	struct pnpbiosdev_attach_args *aa = aux;
+
+	if (strcmp(aa->idstr, "ESS0104"))
+		return (0);
+
+	return (1);
+}
+
+void
+ess_pnpbios_attach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct ess_softc *sc = (void *)self;
+	struct pnpbiosdev_attach_args *aa = aux;
+
+	if (pnpbios_io_map(aa->pbt, aa->resc, 0, &sc->sc_iot, &sc->sc_ioh)) {
+		printf(": can't map i/o space\n");
+		return;
+	}
+
+	sc->sc_ic = aa->ic;
+
+	/* XXX These are only for setting chip configuration registers. */
+	pnpbios_getiobase(aa->pbt, aa->resc, 0, 0, &sc->sc_iobase);
+
+	sc->sc_audio1.ist = IST_EDGE;
+	sc->sc_audio2.ist = IST_EDGE;
+
+	if (pnpbios_getirqnum(aa->pbt, aa->resc, 0, &sc->sc_audio1.irq)) {
+		printf(": can't get IRQ\n");
+		return;
+	}
+
+	if (pnpbios_getirqnum(aa->pbt, aa->resc, 1, &sc->sc_audio2.irq))
+		sc->sc_audio2.irq = -1;
+
+	if (pnpbios_getdmachan(aa->pbt, aa->resc, 0, &sc->sc_audio1.drq)) {
+		printf(": can't get DMA channel\n");
+		return;
+	}
+
+	if (pnpbios_getdmachan(aa->pbt, aa->resc, 1, &sc->sc_audio2.drq))
+		sc->sc_audio2.drq = -1;
+
+	printf("\n");
+	pnpbios_print_devres(self, aa);
+
+	printf("%s", self->dv_xname);
+
+	if (!essmatch(sc)) {
+		printf("%s: essmatch failed\n", sc->sc_dev.dv_xname);
+		/* XXX should probably use "pnpbios_io_unmap", but it doesn't exist. */
+		bus_space_unmap(sc->sc_iot, sc->sc_ioh, ESS_NPORT);
+		return;
+	}
+
+	essattach(sc);
+}
+
diff --git a/sys/arch/i386/pnpbios/files.pnpbios b/sys/arch/i386/pnpbios/files.pnpbios
index 488e119eab50..06d74209554f 100644
--- a/sys/arch/i386/pnpbios/files.pnpbios
+++ b/sys/arch/i386/pnpbios/files.pnpbios
@@ -1,4 +1,4 @@
-# $NetBSD: files.pnpbios,v 1.2 1999/11/14 02:15:50 thorpej Exp $
+# $NetBSD: files.pnpbios,v 1.3 2000/02/15 17:12:54 nathanw Exp $
 
 defopt PNPBIOSVERBOSE
 
@@ -22,6 +22,9 @@ file arch/i386/pnpbios/wss_pnpbios.c wss_pnpbios
 attach ym at pnpbios with ym_pnpbios
 file arch/i386/pnpbios/ym_pnpbios.c ym_pnpbios
 
+attach ess at pnpbios with ess_pnpbios
+file arch/i386/pnpbios/ess_pnpbios.c ess_pnpbios
+
 attach pciide at pnpbios with pciide_pnpbios
 file arch/i386/pnpbios/pciide_pnpbios.c pciide_pnpbios needs-flag