[hpoussin] 18006: Report correctly USB device class and subclass when the device reports only one interface and the class is not defined in the device descriptor

Report correctly USB device class and subclass when the device reports
only one interface and the class is not defined in the device descriptor
Modified: trunk/reactos/drivers/usb/usbhub/fdo.c
  _____  

Modified: trunk/reactos/drivers/usb/usbhub/fdo.c
--- trunk/reactos/drivers/usb/usbhub/fdo.c	2005-09-23 08:55:33 UTC
(rev 18005)
+++ trunk/reactos/drivers/usb/usbhub/fdo.c	2005-09-23 09:02:16 UTC
(rev 18006)
@@ -110,13 +110,11 @@

 		if (!NT_SUCCESS(Status))
 			goto ByeBye;
 		
-		DPRINT1("child #%lu: USB\\Vid_%04x&Pid_%04x&Rev_%04x
(class %x:%x)\n",
+		DPRINT1("child #%lu: USB\\Vid_%04x&Pid_%04x&Rev_%04x\n",
 			i,
 			PdoExtension->dev->descriptor.idVendor,
 			PdoExtension->dev->descriptor.idProduct,
-			PdoExtension->dev->descriptor.bcdDevice,
-			PdoExtension->dev->descriptor.bDeviceClass,
-			PdoExtension->dev->descriptor.bDeviceSubClass);
+			PdoExtension->dev->descriptor.bcdDevice);
 		sprintf(Buffer[0], "USB\\Vid_%04x&Pid_%04x&Rev_%04x",
 			PdoExtension->dev->descriptor.idVendor,
 			PdoExtension->dev->descriptor.idProduct,
@@ -139,15 +137,33 @@
 		if (PdoExtension->dev->actconfig->desc.bNumInterfaces ==
1)
 		{
 			/* Single-interface USB device */
-			sprintf(Buffer[0],
"USB\\Class_%02x&SubClass_%02x&Prot_%02x",
-
PdoExtension->dev->descriptor.bDeviceClass,
-
PdoExtension->dev->descriptor.bDeviceSubClass,
-
PdoExtension->dev->descriptor.bDeviceProtocol);
-			sprintf(Buffer[1],
"USB\\Class_%02x&SubClass_%02x",
-
PdoExtension->dev->descriptor.bDeviceClass,
-
PdoExtension->dev->descriptor.bDeviceSubClass);
-			sprintf(Buffer[2], "USB\\Class_%02x",
-
PdoExtension->dev->descriptor.bDeviceClass);
+			if (PdoExtension->dev->descriptor.bDeviceClass
!= 0)
+			{
+				/* Use these values for device class/sub
class/protocol */
+				sprintf(Buffer[0],
"USB\\Class_%02x&SubClass_%02x&Prot_%02x",
+
PdoExtension->dev->descriptor.bDeviceClass,
+
PdoExtension->dev->descriptor.bDeviceSubClass,
+
PdoExtension->dev->descriptor.bDeviceProtocol);
+				sprintf(Buffer[1],
"USB\\Class_%02x&SubClass_%02x",
+
PdoExtension->dev->descriptor.bDeviceClass,
+
PdoExtension->dev->descriptor.bDeviceSubClass);
+				sprintf(Buffer[2], "USB\\Class_%02x",
+
PdoExtension->dev->descriptor.bDeviceClass);
+			}
+			else
+			{
+				/* Use values specified in the interface
descriptor */
+				struct usb_host_interface *itf =
PdoExtension->dev->actconfig->interface->altsetting;
+				sprintf(Buffer[0],
"USB\\Class_%02x&SubClass_%02x&Prot_%02x",
+					itf->desc.bInterfaceClass,
+					itf->desc.bInterfaceSubClass,
+					itf->desc.bInterfaceProtocol);
+				sprintf(Buffer[1],
"USB\\Class_%02x&SubClass_%02x",
+					itf->desc.bInterfaceClass,
+					itf->desc.bInterfaceSubClass);
+				sprintf(Buffer[2], "USB\\Class_%02x",
+					itf->desc.bInterfaceClass);
+			}
 			Status = UsbhubInitMultiSzString(
 				&PdoExtension->CompatibleIds,
 				Buffer[0], Buffer[1], Buffer[2], NULL);