virusb: Introduce virUSBDeviceGetPath

We will need this function in near future so that we know what
/dev device corresponds to the USB device.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

src/libvirt_private.syms

@@ -2634,6 +2634,7 @@ virUSBDeviceFree;
 virUSBDeviceGetBus;
 virUSBDeviceGetDevno;
 virUSBDeviceGetName;
+virUSBDeviceGetPath;
 virUSBDeviceGetUsedBy;
 virUSBDeviceListAdd;
 virUSBDeviceListCount;

src/util/virusb.c

@@ -406,6 +406,11 @@ const char *virUSBDeviceGetName(virUSBDevicePtr dev)
     return dev->name;
 }
 
+const char *virUSBDeviceGetPath(virUSBDevicePtr dev)
+{
+    return dev->path;
+}
+
 unsigned int virUSBDeviceGetBus(virUSBDevicePtr dev)
 {
     return dev->bus;

src/util/virusb.h

@@ -67,6 +67,7 @@ void virUSBDeviceGetUsedBy(virUSBDevicePtr dev,
                            const char **drv_name,
                            const char **dom_name);
 const char *virUSBDeviceGetName(virUSBDevicePtr dev);
+const char *virUSBDeviceGetPath(virUSBDevicePtr usb);
 
 unsigned int virUSBDeviceGetBus(virUSBDevicePtr dev);
 unsigned int virUSBDeviceGetDevno(virUSBDevicePtr dev);