diff --git a/lib/access.c b/lib/access.c
index 2adeed44..f63634ec 100644
--- a/lib/access.c
+++ b/lib/access.c
@@ -367,6 +367,8 @@ const char *sensors_get_adapter_name(const sensors_bus_id *bus)
 	   HID buses have a name nor where to find it. */
 	case SENSORS_BUS_TYPE_HID:
 		return "HID adapter";
+	case SENSORS_BUS_TYPE_MDIO:
+		return "MDIO adapter";
 	}
 
 	/* bus types with several instances */
diff --git a/lib/data.c b/lib/data.c
index 69f86466..937709f2 100644
--- a/lib/data.c
+++ b/lib/data.c
@@ -123,6 +123,8 @@ int sensors_parse_chip_name(const char *name, sensors_chip_name *res)
 		res->bus.type = SENSORS_BUS_TYPE_ACPI;
 	else if (!strncmp(name, "hid", dash - name))
 		res->bus.type = SENSORS_BUS_TYPE_HID;
+	else if (!strncmp(name, "mdio", dash - name))
+		res->bus.type = SENSORS_BUS_TYPE_MDIO;
 	else
 		goto ERROR;
 	name = dash + 1;
@@ -193,6 +195,9 @@ int sensors_snprintf_chip_name(char *str, size_t size,
 	case SENSORS_BUS_TYPE_HID:
 		return snprintf(str, size, "%s-hid-%hd-%x", chip->prefix,
 				chip->bus.nr, chip->addr);
+	case SENSORS_BUS_TYPE_MDIO:
+		return snprintf(str, size, "%s-mdio-%x", chip->prefix,
+				chip->addr);
 	}
 
 	return -SENSORS_ERR_CHIP_NAME;
diff --git a/lib/sensors.conf.5 b/lib/sensors.conf.5
index dbf1ba21..d8695239 100644
--- a/lib/sensors.conf.5
+++ b/lib/sensors.conf.5
@@ -86,9 +86,10 @@ The name of the bus is either
 .IR isa ,
 .IR pci ,
 .IR virtual ,
-.I spi-*
-or
+.I spi-*,
 .I i2c-N
+or
+.I mdio
 with
 .I N
 being a bus number as bound with a
diff --git a/lib/sensors.h b/lib/sensors.h
index ed2d9a80..4c4b60ab 100644
--- a/lib/sensors.h
+++ b/lib/sensors.h
@@ -44,6 +44,7 @@
 #define SENSORS_BUS_TYPE_VIRTUAL	4
 #define SENSORS_BUS_TYPE_ACPI		5
 #define SENSORS_BUS_TYPE_HID		6
+#define SENSORS_BUS_TYPE_MDIO		7
 #define SENSORS_BUS_NR_ANY		(-1)
 #define SENSORS_BUS_NR_IGNORE		(-2)
 
diff --git a/lib/sysfs.c b/lib/sysfs.c
index f44a88de..dcc6af5a 100644
--- a/lib/sysfs.c
+++ b/lib/sysfs.c
@@ -717,6 +717,12 @@ static int sensors_read_one_sysfs_chip(const char *dev_path,
 		/* As of kernel 2.6.32, the hid device names don't look good */
 		entry.chip.bus.nr = bus;
 		entry.chip.addr = id;
+	} else
+	if (subsys && !strcmp(subsys, "mdio_bus")) {
+		if (sscanf(dev_name, "%*[^:]:%d", &entry.chip.addr) != 1)
+			entry.chip.addr = 0;
+		entry.chip.bus.type = SENSORS_BUS_TYPE_MDIO;
+		entry.chip.bus.nr = 0;
 	} else {
 		/* Ignore unknown device */
 		err = 0;