opl_attach|opl_attach opl_calc_vol|opl_calc_vol opl_detach|opl_detach opl_find|opl_find opl_get_block_fnum|opl_get_block_fnum opl_load_patch|opl_load_patch opl_match|opl_match opl_reset|opl_reset opl_set_ch_reg|opl_set_ch_reg opl_set_op_reg|opl_set_op_reg oplsyn_attackv|oplsyn_attackv oplsyn_close|oplsyn_close oplsyn_ctlnotice|oplsyn_ctlnotice oplsyn_loadpatch|oplsyn_loadpatch oplsyn_open|oplsyn_open oplsyn_programchange|oplsyn_programchange oplsyn_releasev|oplsyn_releasev oplsyn_reset|oplsyn_reset opti_read_config|opti_read_config opti_write_config|opti_write_config opendisk|opendisk optstr_get|optstr_get