Patches by Salvatore Benedetto to fix changes made by me and also the underlaying problem that caused high CPU usage in the isochronous finisher thread. Also includes patches to support isochronous support through USBKit / usb_raw. Thanks!

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21636 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/libs/usb/USBKit.h

@@ -10,6 +10,7 @@
 #define _USBKIT_H
 
 #include <SupportDefs.h>
+#include <USB3.h>
 #include <USB_spec.h>
 
 
@@ -257,7 +258,7 @@ mutable	char						*fInterfaceString;
 
 
 /*	The BUSBEndpoint represent a device endpoint that can be used to send or
-	receive data. It also alows to query endpoint characteristics like
+	receive data. It also allows to query endpoint characteristics like
 	endpoint type or direction. */
 class BUSBEndpoint {
 public:
@@ -299,6 +300,10 @@ public:
 										size_t length) const;
 		ssize_t						BulkTransfer(void *data,
 										size_t length) const;
+		ssize_t						IsochronousTransfer(void *data,
+										size_t length,
+										usb_iso_packet_descriptor *packetDescriptors,
+										uint32 packetCount)	const;
 
 private:
 friend	class BUSBInterface;