PCI224_FIFO_SIZE  184 drivers/staging/comedi/drivers/amplc_pci224.c #define PCI224_FIFO_ROOM_EMPTY		PCI224_FIFO_SIZE
PCI224_FIFO_SIZE  185 drivers/staging/comedi/drivers/amplc_pci224.c #define PCI224_FIFO_ROOM_ONETOHALF	(PCI224_FIFO_SIZE / 2)