int n_aochan;
        unsigned int ai_ns_min;
        const struct comedi_lrange *rangelist_ai;
-       unsigned int IRQbits;
+       unsigned int irq_bits;
        unsigned int has_dma:1;
        unsigned int has_16bit_ai:1;
        unsigned int has_mpc508_mux:1;
                .n_aochan       = 2,
                .ai_ns_min      = 33000,
                .rangelist_ai   = &range_bipolar10,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_dio        = 1,
        }, {
                .n_aochan       = 2,
                .ai_ns_min      = 33000,
                .rangelist_ai   = &range_pcl812pg_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_dio        = 1,
        }, {
                .n_aochan       = 2,
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_pcl812pg_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_dio        = 1,
        }, {
                .n_aochan       = 2,
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_acl8112dg_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_mpc508_mux = 1,
                .has_dio        = 1,
                .n_aochan       = 2,
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_acl8112hg_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_mpc508_mux = 1,
                .has_dio        = 1,
                .n_aochan       = 1,
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_pcl813b_ai,
-               .IRQbits        = 0x000c,
+               .irq_bits       = 0x000c,
                .has_dio        = 1,
        }, {
                .name           = "a821pglnda",
                .n_aichan       = 16,   /* 8 differential */
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_pcl813b_ai,
-               .IRQbits        = 0x000c,
+               .irq_bits       = 0x000c,
        }, {
                .name           = "a821pgh",
                .board_type     = BOARD_A821,
                .n_aochan       = 1,
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_a821pgh_ai,
-               .IRQbits        = 0x000c,
+               .irq_bits       = 0x000c,
                .has_dio        = 1,
        }, {
                .name           = "a822pgl",
                .n_aochan       = 2,
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_acl8112dg_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_dio        = 1,
        }, {
                .n_aochan       = 2,
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_acl8112hg_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_dio        = 1,
        }, {
                .n_aochan       = 2,
                .ai_ns_min      = 8000,
                .rangelist_ai   = &range_acl8112dg_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_dio        = 1,
        }, {
                .n_aochan       = 2,
                .ai_ns_min      = 8000,
                .rangelist_ai   = &range_acl8112hg_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_dio        = 1,
        }, {
                .n_aochan       = 2,
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_pcl813b2_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_16bit_ai   = 1,
                .has_mpc508_mux = 1,
                .n_aochan       = 2,
                .ai_ns_min      = 10000,
                .rangelist_ai   = &range_pcl813b2_ai,
-               .IRQbits        = 0xdcfc,
+               .irq_bits       = 0xdcfc,
                .has_dma        = 1,
                .has_16bit_ai   = 1,
                .has_dio        = 1,
        if (ret)
                return ret;
 
-       if (board->IRQbits) {
+       if (board->irq_bits) {
                dev->pacer = comedi_8254_init(dev->iobase + PCL812_TIMER_BASE,
                                              I8254_OSC_BASE_2MHZ,
                                              I8254_IO8, 0);
                if (!dev->pacer)
                        return -ENOMEM;
 
-               if ((1 << it->options[1]) & board->IRQbits) {
+               if ((1 << it->options[1]) & board->irq_bits) {
                        ret = request_irq(it->options[1], pcl812_interrupt, 0,
                                          dev->board_name, dev);
                        if (ret == 0)