diff --git a/sys/dev/it8613hwm/it8613hwm.c b/sys/dev/it8613hwm/it8613hwm.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/it8613hwm/it8613hwm.c
@@ -0,0 +1,151 @@
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+#include <sys/module.h>
+#include <sys/rman.h>
+#include <sys/sysctl.h>
+#include <sys/mutex.h>
+
+#include <dev/superio/superio.h>
+
+#include <machine/bus.h>
+#include <machine/resource.h>
+
+struct it8613hwm_softc {
+	struct resource*	ioport_res;
+	int			ioport_rid;
+
+	struct mtx		lock;
+};
+
+static int it8613hwm_get_temp_sysctl(SYSCTL_HANDLER_ARGS)
+{
+	device_t		dev = (device_t) arg1;
+	struct it8613hwm_softc* sc = device_get_softc(dev);
+	int 			tempindex = arg2;
+
+	int val = 0;
+
+	if (tempindex >= 0 && tempindex < 3)
+	{
+		mtx_lock(&sc->lock);
+
+		bus_write_1(sc->ioport_res, 0, 0x29 + tempindex);
+		uint8_t temp_celsius = bus_read_1(sc->ioport_res, 1);
+
+
+		val = temp_celsius + 273;
+
+		mtx_unlock(&sc->lock);
+	}
+
+	// FIXME: bunch of magic parameters coming via SYSCTL_HANDLER_ARGS
+	return sysctl_handle_int(oidp, &val, 0, req);
+}
+
+static int it8613hwm_probe(device_t dev)
+{
+	device_printf(dev, "it8613hwm_probe\n");
+
+	if (superio_vendor(dev) != SUPERIO_VENDOR_ITE)
+		return (ENXIO);
+	if (superio_get_type(dev) != SUPERIO_DEV_HWM)
+		return (ENXIO);
+	if (superio_devid(dev) != 0x8613)
+		return (ENXIO);
+
+	device_set_desc(dev, "Hardware monitor on ITE SuperIO");
+	return (BUS_PROBE_DEFAULT);
+}
+
+static int it8613hwm_attach(device_t dev)
+{
+	// debug
+	device_printf(dev, "it8613hwm_attach\n");
+
+	struct it8613hwm_softc* sc = device_get_softc(dev);
+
+	mtx_init(&sc->lock, device_get_nameunit(dev), "it8613hwm", MTX_DEF);
+
+	uint16_t iobase = superio_get_iobase(dev);
+	// debug
+	device_printf(dev, "it8613hwm iobase: %i\n", iobase);
+
+	int error = bus_set_resource(dev, SYS_RES_IOPORT, sc->ioport_rid, iobase + 5, 2);
+	if (error != 0)
+	{
+		device_printf(dev, "bus_set_resource failed\n");
+		mtx_destroy(&sc->lock);
+		return (ENXIO);
+	}
+	sc->ioport_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &sc->ioport_rid, RF_ACTIVE);
+	if (sc->ioport_res == NULL)
+	{
+		device_printf(dev, "bus_alloc_resource_any failed\n");
+		mtx_destroy(&sc->lock);
+		return (ENXIO);
+	}
+
+	// check hardware monitor id... this should be 0x90 for the it8613
+	bus_write_1(sc->ioport_res, 0, 0x58);	// chip id register
+	uint8_t chipid = bus_read_1(sc->ioport_res, 1);
+	if (chipid != 0x90)
+	{
+		device_printf(dev, "unexpected chip id: actual %i != expected %i\n", chipid, 0x90);
+		bus_release_resource(dev, SYS_RES_IOPORT, sc->ioport_rid, sc->ioport_res);
+		mtx_destroy(&sc->lock);
+		return (ENXIO);
+	}
+
+	struct sysctl_ctx_list* ctx = device_get_sysctl_ctx(dev);
+	// gets us "dev.it8613hwm.0.temperature0"
+	SYSCTL_ADD_PROC(ctx,
+			SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),	// FIXME: this device parent vs sysctl parent thing is confusing
+			OID_AUTO,
+			"temperature0",
+			CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
+			dev, 0, 	// arg1 and arg2
+			it8613hwm_get_temp_sysctl,
+			"IK0",
+			"Temperature sensor 0");
+	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "temperature1", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 1, it8613hwm_get_temp_sysctl, "IK0", "Temperature sensor 1");
+	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "temperature2", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 2, it8613hwm_get_temp_sysctl, "IK0", "Temperature sensor 2");
+	return (0);
+}
+
+static int it8613hwm_detach(device_t dev)
+{
+	struct it8613hwm_softc* sc = device_get_softc(dev);
+
+	device_printf(dev, "it8613hwm_detach\n");
+
+	bus_release_resource(dev, SYS_RES_IOPORT, sc->ioport_rid, sc->ioport_res);
+	mtx_destroy(&sc->lock);
+	return (0);
+}
+
+static device_method_t it8613hwm_methods[] = {
+	/* Methods from the device interface */
+	DEVMETHOD(device_probe,		it8613hwm_probe),
+	DEVMETHOD(device_attach,	it8613hwm_attach),
+	DEVMETHOD(device_detach,	it8613hwm_detach),
+
+	/* Terminate method list */
+	{ 0, 0 }
+};
+
+static driver_t it8613hwm_driver = {
+	"it8613hwm",
+	it8613hwm_methods,
+	sizeof(struct it8613hwm_softc)
+};
+
+static devclass_t it8613hwm_devclass;
+
+DRIVER_MODULE(it8613hwm, superio, it8613hwm_driver, it8613hwm_devclass, NULL, NULL);
+MODULE_DEPEND(it8613hwm, superio, 1, 1, 1);
+MODULE_VERSION(it8613hwm, 1);
diff --git a/sys/dev/superio/superio.c b/sys/dev/superio/superio.c
--- a/sys/dev/superio/superio.c
+++ b/sys/dev/superio/superio.c
@@ -269,6 +269,11 @@
 	{ .type = SUPERIO_DEV_NONE },
 };
 
+const struct sio_device itehwm_devices[] = {
+	{ .ldn = 4, .type = SUPERIO_DEV_HWM },
+	{ .type = SUPERIO_DEV_NONE },
+};
+
 const struct sio_device nvt_devices[] = {
 	{ .ldn = 8, .type = SUPERIO_DEV_WDT },
 	{ .type = SUPERIO_DEV_NONE },
@@ -293,6 +298,10 @@
 	const char		*descr;
 	const struct sio_device	*devices;
 } superio_table[] = {
+	{
+		.vendor = SUPERIO_VENDOR_ITE, .devid = 0x8613,
+		.devices = itehwm_devices,
+	},
 	{
 		.vendor = SUPERIO_VENDOR_ITE, .devid = 0x8712,
 		.devices = ite_devices,
diff --git a/sys/modules/Makefile b/sys/modules/Makefile
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -192,6 +192,7 @@
 	${_iser} \
 	isp \
 	${_ispfw} \
+	${_it8613hwm} \
 	${_itwd} \
 	${_iwi} \
 	${_iwifw} \
@@ -685,6 +686,7 @@
 _if_ndis=	if_ndis
 _igc=		igc
 _io=		io
+_it8613hwm= it8613hwm
 _itwd=		itwd
 _ix=		ix
 _ixv=		ixv
diff --git a/sys/modules/it8613hwm/Makefile b/sys/modules/it8613hwm/Makefile
new file mode 100644
--- /dev/null
+++ b/sys/modules/it8613hwm/Makefile
@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+.PATH: ${SRCTOP}/sys/dev/it8613hwm
+
+KMOD=	it8613hwm
+SRCS=	it8613hwm.c
+SRCS+=	device_if.h bus_if.h isa_if.h
+
+.include <bsd.kmod.mk>