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-rw-r--r--src/device/device_util.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/device/device_util.c b/src/device/device_util.c
index 38654fa586..83decc1188 100644
--- a/src/device/device_util.c
+++ b/src/device/device_util.c
@@ -94,6 +94,27 @@ struct device *dev_find_slot_on_smbus(unsigned int bus, unsigned int addr)
}
/**
+ * Given a PnP port and a device number, find the device structure.
+ *
+ * @param port The I/O port.
+ * @param device Logical device number.
+ * @return Pointer to the device structure (if found), 0 otherwise.
+ */
+struct device *dev_find_slot_pnp(u16 port, u8 device)
+{
+ struct device *dev;
+
+ for (dev = all_devices; dev; dev = dev->next) {
+ if ((dev->path.type == DEVICE_PATH_PNP) &&
+ (dev->path.pnp.port == port) &&
+ (dev->path.pnp.device == device)) {
+ return dev;
+ }
+ }
+ return 0;
+}
+
+/**
* Given a Local APIC ID, find the device structure.
*
* @param apic_id The Local APIC ID number.