[src/trunk]: src/sys/dev/usb Add a clarifying comment.

[augustss <augustss%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/913234fa435e
branches:  trunk
changeset: 485247:913234fa435e
user:      augustss <augustss%NetBSD.org@localhost>
date:      Sat Apr 22 22:50:44 2000 +0000

description:
Add a clarifying comment.

diffstat:

 sys/dev/usb/ohci.c |  3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diffs (17 lines):

diff -r 303de025ddae -r 913234fa435e sys/dev/usb/ohci.c
--- a/sys/dev/usb/ohci.c        Sat Apr 22 22:45:37 2000 +0000
+++ b/sys/dev/usb/ohci.c        Sat Apr 22 22:50:44 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ohci.c,v 1.86 2000/04/21 15:38:55 augustss Exp $       */
+/*     $NetBSD: ohci.c,v 1.87 2000/04/22 22:50:44 augustss Exp $       */
 /*     $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $       */
 
 /*
@@ -1434,6 +1434,7 @@
        m = min(sc->sc_noport, xfer->length * 8 - 1);
        memset(p, 0, xfer->length);
        for (i = 1; i <= m; i++) {
+               /* Pick out CHANGE bits from the status reg. */
                if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16)
                        p[i/8] |= 1 << (i%8);
        }