X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fusb.h;h=4dbe580f9335833eb5fe78be9e241db64e5ef0fb;hb=3874b98c655b9490bea1cf9c7697d5dc5338376f;hp=41d1a644c9d43aa8206cf2b6e708c4a8173b7fd2;hpb=27d72e8572336d9f4e17a12ac924cb5223a5758d;p=linux-2.6

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 41d1a644c9..4dbe580f93 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -5,6 +5,7 @@
 #include <linux/usb_ch9.h>
 
 #define USB_MAJOR			180
+#define USB_DEVICE_MAJOR		189
 
 
 #ifdef __KERNEL__
@@ -287,15 +288,14 @@ struct usb_bus {
 
 	struct dentry *usbfs_dentry;	/* usbfs dentry entry for the bus */
 
-	struct class_device class_dev;	/* class device for this bus */
+	struct class_device *class_dev;	/* class device for this bus */
+	struct kref kref;		/* handles reference counting this bus */
 	void (*release)(struct usb_bus *bus);	/* function to destroy this bus's memory */
-#if defined(CONFIG_USB_MON) || defined(CONFIG_USB_MON_MODULE)
+#if defined(CONFIG_USB_MON)
 	struct mon_bus *mon_bus;	/* non-null when associated */
 	int monitored;			/* non-zero when monitored */
 #endif
 };
-#define	to_usb_bus(d) container_of(d, struct usb_bus, class_dev)
-
 
 /* -------------------------------------------------------------------------- */
 
@@ -350,6 +350,7 @@ struct usb_device {
 	char *manufacturer;
 	char *serial;			/* static strings from the device */
 	struct list_head filelist;
+	struct class_device *class_dev;
 	struct dentry *usbfs_dentry;	/* usbfs dentry entry for the device */
 
 	/*
@@ -615,7 +616,6 @@ extern int usb_disabled(void);
 #define URB_ISO_ASAP		0x0002	/* iso-only, urb->start_frame ignored */
 #define URB_NO_TRANSFER_DMA_MAP	0x0004	/* urb->transfer_dma valid on submit */
 #define URB_NO_SETUP_DMA_MAP	0x0008	/* urb->setup_dma valid on submit */
-#define URB_ASYNC_UNLINK	0x0010	/* usb_unlink_urb() returns asap */
 #define URB_NO_FSBR		0x0020	/* UHCI-specific */
 #define URB_ZERO_PACKET		0x0040	/* Finish bulk OUTs with short packet */
 #define URB_NO_INTERRUPT	0x0080	/* HINT: no non-error interrupt needed */
@@ -723,13 +723,7 @@ typedef void (*usb_complete_t)(struct urb *, struct pt_regs *);
  * Initialization:
  *
  * All URBs submitted must initialize the dev, pipe, transfer_flags (may be
- * zero), and complete fields.
- * The URB_ASYNC_UNLINK transfer flag affects later invocations of
- * the usb_unlink_urb() routine.  Note: Failure to set URB_ASYNC_UNLINK
- * with usb_unlink_urb() is deprecated.  For synchronous unlinks use
- * usb_kill_urb() instead.
- *
- * All URBs must also initialize 
+ * zero), and complete fields.  All URBs must also initialize
  * transfer_buffer and transfer_buffer_length.  They may provide the
  * URB_SHORT_NOT_OK transfer flag, indicating that short reads are
  * to be treated as errors; that flag is invalid for write requests.
@@ -796,6 +790,10 @@ typedef void (*usb_complete_t)(struct urb *, struct pt_regs *);
  * of the iso_frame_desc array, and the number of errors is reported in
  * error_count.  Completion callbacks for ISO transfers will normally
  * (re)submit URBs to ensure a constant transfer rate.
+ *
+ * Note that even fields marked "public" should not be touched by the driver
+ * when the urb is owned by the hcd, that is, since the call to
+ * usb_submit_urb() till the entry into the completion routine.
  */
 struct urb
 {
@@ -803,12 +801,12 @@ struct urb
 	struct kref kref;		/* reference count of the URB */
 	spinlock_t lock;		/* lock for the URB */
 	void *hcpriv;			/* private data for host controller */
-	struct list_head urb_list;	/* list pointer to all active urbs */
 	int bandwidth;			/* bandwidth for INT/ISO request */
 	atomic_t use_count;		/* concurrent submissions counter */
 	u8 reject;			/* submissions will fail */
 
 	/* public, documented fields in the urb that can be used by drivers */
+	struct list_head urb_list;	/* list head for use by the urb owner */
 	struct usb_device *dev; 	/* (in) pointer to associated device */
 	unsigned int pipe;		/* (in) pipe information */
 	int status;			/* (return) non-ISO status */
@@ -935,17 +933,17 @@ static inline void usb_fill_int_urb (struct urb *urb,
 }
 
 extern void usb_init_urb(struct urb *urb);
-extern struct urb *usb_alloc_urb(int iso_packets, int mem_flags);
+extern struct urb *usb_alloc_urb(int iso_packets, unsigned mem_flags);
 extern void usb_free_urb(struct urb *urb);
 #define usb_put_urb usb_free_urb
 extern struct urb *usb_get_urb(struct urb *urb);
-extern int usb_submit_urb(struct urb *urb, int mem_flags);
+extern int usb_submit_urb(struct urb *urb, unsigned mem_flags);
 extern int usb_unlink_urb(struct urb *urb);
 extern void usb_kill_urb(struct urb *urb);
 
 #define HAVE_USB_BUFFERS
 void *usb_buffer_alloc (struct usb_device *dev, size_t size,
-	int mem_flags, dma_addr_t *dma);
+	unsigned mem_flags, dma_addr_t *dma);
 void usb_buffer_free (struct usb_device *dev, size_t size,
 	void *addr, dma_addr_t dma);
 
@@ -1052,7 +1050,7 @@ int usb_sg_init (
 	struct scatterlist	*sg,
 	int			nents,
 	size_t			length,
-	int			mem_flags
+	unsigned		mem_flags
 );
 void usb_sg_cancel (struct usb_sg_request *io);
 void usb_sg_wait (struct usb_sg_request *io);