drivers/parport/daisy.c

2  * IEEE 1284.3 Parallel port daisy chain and multiplexor code
36 	int daisy;
51 static void add_dev(int devnum, struct parport *port, int daisy)
57 		newdev->daisy = daisy;
102 /* Discover the IEEE1284.3 topology on a port -- muxes and daisy chains.
124 			pr_err("daisy registration failed\n");
246 	int daisy;
258 	daisy = p->daisy;
267 	dev->daisy = daisy;
270 	if (daisy >= 0) {
273 		selected = port->daisy;
276 		if (selected != daisy) {
299 /* Send a daisy-chain-style CPP command packet. */
380 int parport_daisy_select(struct parport *port, int daisy, int mode)
388 			return !(cpp_daisy(port, 0x20 + daisy) &
395 			return !(cpp_daisy(port, 0xd0 + daisy) &
406 			return !(cpp_daisy(port, 0xe0 + daisy) &
430 	unsigned char daisy;
465 	for (daisy = 0;
468 		     && daisy < 4;
469 	     ++daisy) {
470 		parport_write_data(port, daisy);
479 		add_dev(numdevs++, port, daisy);
488 		   work status lines from some non-daisy chain
495 	pr_debug("%s: Found %d daisy-chained devices\n", port->name, detected);
501 	for (daisy = 0; thisdev < numdevs; thisdev++, daisy++)