z8530_sync_txdma_open -- Open a Z8530 for TX driven DMA
(struct net_device * dev, struct z8530_channel * c);
The network device to attach
The Z8530 channel to configure in sync DMA mode.
Set up a Z85x30 device for synchronous DMA tranmission. One
ISA DMA channel must be available for this to work. The receive
side is run in PIO mode, but then it has the bigger FIFO.