1 files changed, 5 insertions, 0 deletions
diff --git a/udev.8 b/udev.8
index 1500b3b424..22c4586daa 100644
--- a/udev.8
+++ b/udev.8
@@ -106,6 +106,11 @@ the bus id for the device
 .B %c
 the CALLOUT program returned string
 (this does not work within the PROGRAM field for the obvious reason.)
+.TP
+.B %D
+Use the devfs style disk name for this device.
+For partitions, this will result in 'part%n'
+If this is not a partition, it will result in 'disk'
 .RE
 .P
 A sample \fIudev.conf\fP might look like this: