[src/trunk]: src/sys/dev/usb More debug.

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

details:   https://anonhg.NetBSD.org/src/rev/7af7797be0e9
branches:  trunk
changeset: 807314:7af7797be0e9
user:      skrll <skrll%NetBSD.org@localhost>
date:      Sun Apr 05 09:12:06 2015 +0000

description:
More debug.

diffstat:

 sys/dev/usb/usb_subr.c |  21 ++++++++++++++++-----
 1 files changed, 16 insertions(+), 5 deletions(-)

diffs (63 lines):

diff -r d871b00fbd6f -r 7af7797be0e9 sys/dev/usb/usb_subr.c
--- a/sys/dev/usb/usb_subr.c    Sun Apr 05 08:41:05 2015 +0000
+++ b/sys/dev/usb/usb_subr.c    Sun Apr 05 09:12:06 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: usb_subr.c,v 1.199 2015/03/27 07:28:56 skrll Exp $     */
+/*     $NetBSD: usb_subr.c,v 1.200 2015/04/05 09:12:06 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 1.199 2015/03/27 07:28:56 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: usb_subr.c,v 1.200 2015/04/05 09:12:06 skrll Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_compat_netbsd.h"
@@ -847,9 +847,12 @@
        ifaces = malloc(nifaces * sizeof(*ifaces), M_USB, M_NOWAIT|M_ZERO);
        if (!ifaces)
                return (USBD_NOMEM);
-       for (i = 0; i < nifaces; i++)
-               if (!dev->subdevs[i])
+       for (i = 0; i < nifaces; i++) {
+               if (!dev->subdevs[i]) {
                        ifaces[i] = &dev->ifaces[i];
+               }
+               DPRINTF(("%s: interface %d %p\n", __func__, i, ifaces[i]));
+       }
 
        uiaa.device = dev;
        uiaa.port = port;
@@ -866,13 +869,19 @@
        ilocs[USBIFIFCF_CONFIGURATION] = uiaa.configno;
 
        for (i = 0; i < nifaces; i++) {
-               if (!ifaces[i])
+               if (!ifaces[i]) {
+                       DPRINTF(("%s: interface %d claimed\n", __func__, i));
                        continue; /* interface already claimed */
+               }
                uiaa.iface = ifaces[i];
                uiaa.class = ifaces[i]->idesc->bInterfaceClass;
                uiaa.subclass = ifaces[i]->idesc->bInterfaceSubClass;
                uiaa.proto = ifaces[i]->idesc->bInterfaceProtocol;
                uiaa.ifaceno = ifaces[i]->idesc->bInterfaceNumber;
+
+               DPRINTF(("%s: searching for interface %d "
+                   "class %x subclass %x proto %x ifaceno %d\n", __func__, i,
+                   uiaa.class, uiaa.subclass, uiaa.proto, uiaa.ifaceno));
                ilocs[USBIFIFCF_INTERFACE] = uiaa.ifaceno;
                if (locators != NULL) {
                        loc = locators[USBIFIFCF_CONFIGURATION];
@@ -891,6 +900,8 @@
                /* account for ifaces claimed by the driver behind our back */
                for (j = 0; j < nifaces; j++) {
                        if (!ifaces[j] && !dev->subdevs[j]) {
+                               DPRINTF(("%s: interface %d claimed "
+                                   "behind our back", __func__, j));
                                dev->subdevs[j] = dv;
                                dev->nifaces_claimed++;
                        }