int n_dichan;
        int n_dochan;
        const struct comedi_lrange *ai_range_type;
-       const struct comedi_lrange *ao_range_type;
        unsigned int IRQbits;
        unsigned int DMAbits;
        int ai_maxdata;
                .n_dichan       = 16,
                .n_dochan       = 16,
                .ai_range_type  = &range_pcl818l_l_ai,
-               .ao_range_type  = &range_unipolar5,
                .IRQbits        = 0x00fc,
                .DMAbits        = 0x0a,
                .ai_maxdata     = 0xfff,
                .n_dichan       = 16,
                .n_dochan       = 16,
                .ai_range_type  = &range_pcl818h_ai,
-               .ao_range_type  = &range_unipolar5,
                .IRQbits        = 0x00fc,
                .DMAbits        = 0x0a,
                .ai_maxdata     = 0xfff,
                .n_dichan       = 16,
                .n_dochan       = 16,
                .ai_range_type  = &range_pcl818h_ai,
-               .ao_range_type  = &range_unipolar5,
                .IRQbits        = 0x00fc,
                .DMAbits        = 0x0a,
                .ai_maxdata     = 0xfff,
                .n_dichan       = 16,
                .n_dochan       = 16,
                .ai_range_type  = &range_pcl818hg_ai,
-               .ao_range_type  = &range_unipolar5,
                .IRQbits        = 0x00fc,
                .DMAbits        = 0x0a,
                .ai_maxdata     = 0xfff,
                .n_dichan       = 16,
                .n_dochan       = 16,
                .ai_range_type  = &range_pcl818h_ai,
-               .ao_range_type  = &range_unipolar5,
                .IRQbits        = 0x00fc,
                .DMAbits        = 0x0a,
                .ai_maxdata     = 0xfff,
                .n_dichan       = 16,
                .n_dochan       = 16,
                .ai_range_type  = &range_unipolar5,
-               .ao_range_type  = &range_unipolar5,
                .IRQbits        = 0x00fc,
                .DMAbits        = 0x0a,
                .ai_maxdata     = 0xfff,
                .n_dichan       = 16,
                .n_dochan       = 16,
                .ai_range_type  = &range_pcl818h_ai,
-               .ao_range_type  = &range_unipolar5,
                .IRQbits        = 0x00fc,
                .DMAbits        = 0x0a,
                .ai_maxdata     = 0xfff,
                s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
                s->n_chan = board->n_aochan;
                s->maxdata = board->ao_maxdata;
-               s->range_table = board->ao_range_type;
+               s->range_table = &range_unipolar5;
                s->insn_read = pcl818_ao_insn_read;
                s->insn_write = pcl818_ao_insn_write;
                if (board->is_818) {