This paper is devoted to dynamic output feedback H-infinity control design of switched linear systems in both continuous and discrete-time domains. More specifically, the main purpose is to jointly design a switching rule and a full order dynamic output feedback switched controller that render the associated closed-loop switched linear system globally asymptotically stable and impose a pre-specified upper bound to the L-2 gain. An example of practical importance is presented to illustrate the validity and efficiency of the theory. (C) 2011 Elsevier Ltd. All rights reserved.