diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 5e3dcf3..3f2a22b 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -131,7 +131,7 @@
 struct acpi_driver {
 	char name[80];
 	char class[80];
-	char *ids;		/* Supported Hardware IDs */
+	const struct acpi_device_id *ids; /* Supported Hardware IDs */
 	struct acpi_device_ops ops;
 	struct device_driver drv;
 	struct module *owner;
@@ -341,7 +341,8 @@
 int acpi_bus_trim(struct acpi_device *start, int rmdevice);
 int acpi_bus_start(struct acpi_device *device);
 acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
-int acpi_match_ids(struct acpi_device *device, char *ids);
+int acpi_match_device_ids(struct acpi_device *device,
+			  const struct acpi_device_id *ids);
 int acpi_create_dir(struct acpi_device *);
 void acpi_remove_dir(struct acpi_device *);
 
diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index 5535159..c348ff4 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -34,16 +34,21 @@
 #define ACPI_BUS_COMPONENT		0x00010000
 #define ACPI_SYSTEM_COMPONENT		0x02000000
 
-/* _HID definitions */
+/*
+ * _HID definitions
+ * HIDs must conform to ACPI spec(6.1.4)
+ * Linux specific HIDs do not apply to this and begin with LNX:
+ */
 
-#define ACPI_POWER_HID			"power_resource"
+#define ACPI_POWER_HID			"LNXPOWER"
 #define ACPI_PROCESSOR_HID		"ACPI0007"
-#define ACPI_SYSTEM_HID			"acpi_system"
-#define ACPI_THERMAL_HID		"thermal"
-#define ACPI_BUTTON_HID_POWERF		"button_power"
-#define ACPI_BUTTON_HID_SLEEPF		"button_sleep"
-#define ACPI_VIDEO_HID			"video"
-#define ACPI_BAY_HID			"bay"
+#define ACPI_SYSTEM_HID			"LNXSYSTM"
+#define ACPI_THERMAL_HID		"LNXTHERM"
+#define ACPI_BUTTON_HID_POWERF		"LNXPWRBN"
+#define ACPI_BUTTON_HID_SLEEPF		"LNXSLPBN"
+#define ACPI_VIDEO_HID			"LNXVIDEO"
+#define ACPI_BAY_HID			"LNXIOBAY"
+
 /* --------------------------------------------------------------------------
                                        PCI
    -------------------------------------------------------------------------- */
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index fe8abc2..e73a389 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -809,7 +809,7 @@
 
 /* Common string version of device HIDs and UIDs */
 
-struct acpi_device_id {
+struct acpica_device_id {
 	char value[ACPI_DEVICE_ID_LENGTH];
 };
 
@@ -859,8 +859,8 @@
 	u32 valid;		/* Indicates which fields below are valid */
 	u32 current_status;	/* _STA value */
 	acpi_integer address;	/* _ADR value if any */
-	struct acpi_device_id hardware_id;	/* _HID value if any */
-	struct acpi_device_id unique_id;	/* _UID value if any */
+	struct acpica_device_id hardware_id;	/* _HID value if any */
+	struct acpica_device_id unique_id;	/* _UID value if any */
 	u8 highest_dstates[4];	/* _sx_d values: 0xFF indicates not valid */
 	struct acpi_compatible_id_list compatibility_id;	/* List of _CIDs if any */
 };
diff --git a/include/acpi/acutils.h b/include/acpi/acutils.h
index a87ef1c..a2918547 100644
--- a/include/acpi/acutils.h
+++ b/include/acpi/acutils.h
@@ -354,7 +354,7 @@
 
 acpi_status
 acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
-		    struct acpi_device_id *hid);
+		    struct acpica_device_id *hid);
 
 acpi_status
 acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
@@ -366,7 +366,7 @@
 
 acpi_status
 acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
-		    struct acpi_device_id *uid);
+		    struct acpica_device_id *uid);
 
 acpi_status
 acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest);