unsigned int ns_min;
        int n_aochan;
        const struct comedi_lrange *ai_range_type;
-       int ao_maxdata;
        unsigned int has_dma:1;
        unsigned int has_fifo:1;
        unsigned int is_818:1;
                .ns_min         = 25000,
                .n_aochan       = 1,
                .ai_range_type  = &range_pcl818l_l_ai,
-               .ao_maxdata     = 0xfff,
                .has_dma        = 1,
                .is_818         = 1,
        }, {
                .ns_min         = 10000,
                .n_aochan       = 1,
                .ai_range_type  = &range_pcl818h_ai,
-               .ao_maxdata     = 0xfff,
                .has_dma        = 1,
                .is_818         = 1,
        }, {
                .ns_min         = 10000,
                .n_aochan       = 1,
                .ai_range_type  = &range_pcl818h_ai,
-               .ao_maxdata     = 0xfff,
                .has_dma        = 1,
                .has_fifo       = 1,
                .is_818         = 1,
                .ns_min         = 10000,
                .n_aochan       = 1,
                .ai_range_type  = &range_pcl818hg_ai,
-               .ao_maxdata     = 0xfff,
                .has_dma        = 1,
                .has_fifo       = 1,
                .is_818         = 1,
                .ns_min         = 10000,
                .n_aochan       = 2,
                .ai_range_type  = &range_pcl818h_ai,
-               .ao_maxdata     = 0xfff,
                .has_dma        = 1,
                .is_818         = 1,
        }, {
                .ns_min         = 16000,
                .n_aochan       = 2,
                .ai_range_type  = &range_unipolar5,
-               .ao_maxdata     = 0xfff,
                .has_dma        = 1,
        }, {
                .name           = "pcm3718",
                .ns_min         = 10000,
                .ai_range_type  = &range_pcl818h_ai,
-               .ao_maxdata     = 0xfff,
                .has_dma        = 1,
                .is_818         = 1,
        },
                s->type = COMEDI_SUBD_AO;
                s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
                s->n_chan = board->n_aochan;
-               s->maxdata = board->ao_maxdata;
+               s->maxdata = 0x0fff;
                s->range_table = &range_unipolar5;
                s->insn_read = pcl818_ao_insn_read;
                s->insn_write = pcl818_ao_insn_write;