Index: gio/gfileattribute.c
===================================================================
--- gio/gfileattribute.c	(revision 7967)
+++ gio/gfileattribute.c	(working copy)
@@ -165,6 +165,7 @@
  * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_UNMOUNT</entry><entry>mountable::can-unmount</entry><entry>boolean</entry></row>
  * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_CAN_EJECT</entry><entry>mountable::can-eject</entry><entry>boolean</entry></row>
  * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE</entry><entry>mountable::unix-device</entry><entry>uint32</entry></row>
+ * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE_FILE</entry><entry>mountable::unix-device-file</entry><entry>string</entry></row>
  * <row><entry>%G_FILE_ATTRIBUTE_MOUNTABLE_HAL_UDI</entry><entry>mountable::hal-udi</entry><entry>string</entry></row>
  * <row><entry>%G_FILE_ATTRIBUTE_TIME_MODIFIED</entry><entry>time::modified</entry><entry>uint64</entry></row>
  * <row><entry>%G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC</entry><entry>time::modified-usec</entry><entry>uint32</entry></row>
Index: gio/gfileinfo.h
===================================================================
--- gio/gfileinfo.h	(revision 7967)
+++ gio/gfileinfo.h	(working copy)
@@ -363,6 +363,14 @@
 #define G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE "mountable::unix-device" /* uint32 */
 
 /**
+ * G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE_FILE:
+ *
+ * A key in the "mountable" namespace for getting the unix device file (e.g. /dev/sdb1).
+ * Corresponding #GFileAttributeType is %G_FILE_ATTRIBUTE_TYPE_STRING.
+ **/
+#define G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE_FILE "mountable::unix-device-file" /* string */
+
+/**
  * G_FILE_ATTRIBUTE_MOUNTABLE_HAL_UDI:
  *
  * A key in the "mountable" namespace for getting the HAL UDI for the mountable
Index: docs/reference/gio/gio-sections.txt
===================================================================
--- docs/reference/gio/gio-sections.txt	(revision 7967)
+++ docs/reference/gio/gio-sections.txt	(working copy)
@@ -196,6 +196,7 @@
 G_FILE_ATTRIBUTE_MOUNTABLE_CAN_UNMOUNT
 G_FILE_ATTRIBUTE_MOUNTABLE_CAN_EJECT
 G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE
+G_FILE_ATTRIBUTE_MOUNTABLE_UNIX_DEVICE_FILE
 G_FILE_ATTRIBUTE_MOUNTABLE_HAL_UDI
 G_FILE_ATTRIBUTE_TIME_MODIFIED
 G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC
