-user specification is in XML and is read from standard input. The code is
-written to standard output.
+user specification is in XML and is read from standard input. With all options,
+the code for a header file is written to standard output. With the
+optional \fB-t\fR flag specified, a VolumeMapC.nc file is generated that provides
+interfaces to all the storage volume abstractions defined in the XML file.
+The optional \fB-s\fR flag specifies the sector size on the flash, the default is 256.
+The optional \fB-f\fR flag specifies the total number of sectors on the flash, the default is 2048.