REG_IMASK_SET
writew(NETUP_UNIDVB_IRQ_CI, dev->bmmio0 + REG_IMASK_SET);
writew(irq_mask, dma->ndev->bmmio0 + REG_IMASK_SET);
writew(NETUP_UNIDVB_IRQ_CI, ndev->bmmio0 + REG_IMASK_SET);
ndev->bmmio0 + REG_IMASK_SET);
writew(NETUP_UNIDVB_IRQ_SPI, ndev->bmmio0 + REG_IMASK_SET);