Described herein is a coated medical device comprising: a medical device comprising a substrate, the substrate comprising a surface； and a polymeric coating disposed over the surface of the substrate, wherein the polymeric coating comprises a linking agent； and a polymer； wherein the linking agent comprises a compound of formulaPhoto1-P(O)(R)-Photo2wherein Photo1 and Photo2, independently, represent one or more photoreactive groups, and wherein R is phenyl, methyl, ethyl, isopropyl, t-butyl, hydroxyl or a salt thereof.
