113 	/* iso periods can be huge; iso tds specify frame numbers */  in balance()
139 /* both iso and interrupt requests have periods; this routine puts them
140  * into the schedule tree in the apppropriate place.  most iso devices use
148 		(ed->hwINFO & cpu_to_hc32 (ohci, ED_ISO)) ? "iso " : "",  in periodic_link()
158 		 * (plus maybe: put interrupt eds before iso)  in periodic_link()
292 		(ed->hwINFO & cpu_to_hc32 (ohci, ED_ISO)) ? "iso " : "",  in periodic_unlink()
456 				else if (interval > 32)	/* iso can be bigger */  in ed_get()
528 	 * and iso; other urbs rarely need more than one TD per urb.  in td_fill()
639 	 * (CC = NotAccessed ... 0x0F, or 0x0E in PSWs for ISO.)  in td_submit_urb()
712 	/* ISO has no retransmit, so no toggle; and it uses special TDs.  in td_submit_urb()
723 			// a 2^16 iso range, vs other HCs max of 2^10)  in td_submit_urb()
764 	/* ISO ... drivers see per-TD length/status */  in td_done()
780 			/* short reads are always OK for ISO */  in td_done()
791 				"urb %p iso td %p (%d) len %d cc %d\n",  in td_done()
959 		/* Non-iso endpoints can halt on error; un-halt,  in update_done_list()
1060 			 * control and ISO endpoints.  in finish_unlinks()