CHIP_INDEX
outb(idx, fc->addr + CHIP_INDEX);
outb(idx, fc->addr + CHIP_INDEX);
outb(AVM_ISAC_FIFO, fc->addr + CHIP_INDEX);
outb(AVM_ISAC_FIFO, fc->addr + CHIP_INDEX);
outl(idx, fc->addr + CHIP_INDEX);
outl(channel == 2 ? AVM_HDLC_2 : AVM_HDLC_1, addr + CHIP_INDEX);
outl(AVM_HDLC_1, fc->addr + CHIP_INDEX);