[src/nick-nhusb]: src/sys/dev/usb Use USB_IS_SS macro and update a comment.

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

details:   https://anonhg.NetBSD.org/src/rev/2dd2727f0486
branches:  nick-nhusb
changeset: 334217:2dd2727f0486
user:      skrll <skrll%NetBSD.org@localhost>
date:      Sat Jun 06 15:21:57 2015 +0000

description:
Use USB_IS_SS macro and update a comment.

>From t-hash.

diffstat:

 sys/dev/usb/usb_subr.c |  11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)

diffs (33 lines):

diff -r 004f76cf8adb -r 2dd2727f0486 sys/dev/usb/usb_subr.c
--- a/sys/dev/usb/usb_subr.c    Sat Jun 06 14:39:53 2015 +0000
+++ b/sys/dev/usb/usb_subr.c    Sat Jun 06 15:21:57 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: usb_subr.c,v 1.198.2.13 2015/06/06 14:40:14 skrll Exp $        */
+/*     $NetBSD: usb_subr.c,v 1.198.2.14 2015/06/06 15:21:57 skrll Exp $        */
 /*     $FreeBSD: src/sys/dev/usb/usb_subr.c,v 1.18 1999/11/17 22:33:47 n_hibma Exp $   */
 
 /*
@@ -32,7 +32,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: usb_subr.c,v 1.198.2.13 2015/06/06 14:40:14 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: usb_subr.c,v 1.198.2.14 2015/06/06 15:21:57 skrll Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_compat_netbsd.h"
@@ -1429,10 +1429,11 @@
                                else if (s & UPS_SUSPEND)
                                        err = USB_PORT_SUSPENDED;
                                /*
-                                * UPS_PORT_POWER_SS is available only
-                                * if SS, otherwise it means UPS_LOW_SPEED.
+                                * Note: UPS_PORT_POWER_SS is available only
+                                * on 3.x, and UPS_PORT_POWER is available
+                                * only on 2.0 or 1.1.
                                 */
-                               else if (dev->ud_speed == USB_SPEED_SUPER &&
+                               else if (USB_IS_SS(dev->ud_speed) &&
                                    (s & UPS_PORT_POWER_SS))
                                        err = USB_PORT_POWERED;
                                else if (s & UPS_PORT_POWER)