-.B -d [<vendor>]:[<device>][:<class>]
-Show only devices with specified vendor, device and class ID. The ID's are
-given in hexadecimal and may be omitted or given as "*", both meaning
-"any value".
+.B -d [<vendor>]:[<device>][:<class>[:<prog-if>]]
+Show only devices with specified vendor, device, class ID, and programming interface.
+The ID's are given in hexadecimal and may be omitted or given as "*", both meaning
+"any value". The class ID can contain "x" characters which stand for "any digit".