Changes

Your font has no Small Caps variant? Do you need Small Caps switching depending on the \it, \bf, \bi, \tt, \ss, ... ? Here is the recipe for generating and installing Pseudo Small Caps (small letters are scaled down versions of capitals - typographicaly not clear solution but if the font has no real Small Caps...). The example is done on Latin Modern family but can be applied to another Type1 font.