Hello, the appended patch converts the numeric register offsets in tas5711_reg_defaults to the defined constants TAS571X_* Tested with a tas5713 chip for which the driver works, too. Thanks, greetings Hermann -- Administration/Zentrale Dienste, Interdiziplinaeres Zentrum fuer wissenschaftliches Rechnen der Universitaet Heidelberg IWR; INF 205; 69120 Heidelberg; Tel: (06221)54-14405 Fax: -14427 Email: Hermann.Lauer@iwr.uni-heidelberg.de