polarity_port    1498 dev/pci/esa.c  	u_int32_t gpo, polarity_port, polarity;
polarity_port    1503 dev/pci/esa.c  		polarity_port = 0x1800;
polarity_port    1506 dev/pci/esa.c  		polarity_port = 0x1100;
polarity_port    1514 dev/pci/esa.c  	gpo = (polarity_port >> 8) & 0x0f;
polarity_port    1515 dev/pci/esa.c  	polarity = polarity_port >> 12;