Merge from NetBSD:

usb.c:	-r1.35 - 1.37
usb_port.h:	tiny bit of -r1.26 + an extra bit in the FreeBSD config section.

revision 1.37
date: 2000/01/24 18:35:51; author: thorpej; state: Exp; lines: +7 -1
Use config_pending.

revision 1.36
date: 1999/12/22 23:54:09; author: augustss; state: Exp; lines: +2 -2
Use the flags `locator' to govern if devices are detected early or
late during cold boot.

revision 1.35
date: 1999/12/20 02:12:23; author: augustss; state: Exp; lines: +8 -5
Make sure tsleep() is not called during cold boot.