1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/usb/hub.h b/drivers/usb/hub.h
index 5c7b0c31f..49c531d30 100644
--- a/drivers/usb/hub.h
+++ b/drivers/usb/hub.h
@@ -46,6 +46,24 @@
 #define HUB_CHAR_COMPOUND	0x0004
 #define HUB_CHAR_OCPM		0x0018
 
+/* Hub descriptor */
+struct usb_hub_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+	__u8  bNbrPorts;
+	__u16 wHubCharacteristics;
+#if 0
+	__u8  wHubCharacteristics[2];   /* __u16 but not aligned! */
+#endif
+	__u8  bPwrOn2PwrGood;
+	__u8  bHubContrCurrent;
+	/* DeviceRemovable and PortPwrCtrlMask want to be variable-length 
+	   bitmaps that hold max 256 entries, but for now they're ignored */
+#if 0
+	__u8  filler;
+#endif
+} __attribute__ ((packed));
+
 struct usb_device;
 
 typedef enum {
@@ -68,6 +86,13 @@ struct usb_hub {
 	/* Device structure */
 	struct usb_device *dev;
 
+	/* Reference to the hub's polling IRQ and its associated pipe */
+	void *irq_handle;
+	unsigned int irqpipe;
+
+	/* List of hubs */
+	struct list_head hub_list;
+
 	/* Temporary event list */
 	struct list_head event_list;