firewire: Add read/write and size annotations to IOC numbers.

Also, with this change, refactor ioctl dispatch code to do the
copying from and to user space as indicated by the IOC annotations.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

drivers/firewire/fw-device-cdev.h

@@ -124,18 +124,18 @@ union fw_cdev_event {
 	struct fw_cdev_event_iso_interrupt iso_interrupt;
 };
 
-#define FW_CDEV_IOC_GET_INFO		_IO('#', 0x00)
-#define FW_CDEV_IOC_SEND_REQUEST	_IO('#', 0x01)
-#define FW_CDEV_IOC_ALLOCATE		_IO('#', 0x02)
-#define FW_CDEV_IOC_DEALLOCATE		_IO('#', 0x03)
-#define FW_CDEV_IOC_SEND_RESPONSE	_IO('#', 0x04)
-#define FW_CDEV_IOC_INITIATE_BUS_RESET	_IO('#', 0x05)
-#define FW_CDEV_IOC_ADD_DESCRIPTOR	_IO('#', 0x06)
-#define FW_CDEV_IOC_REMOVE_DESCRIPTOR	_IO('#', 0x07)
-
-#define FW_CDEV_IOC_CREATE_ISO_CONTEXT	_IO('#', 0x08)
-#define FW_CDEV_IOC_QUEUE_ISO		_IO('#', 0x09)
-#define FW_CDEV_IOC_START_ISO		_IO('#', 0x0a)
+#define FW_CDEV_IOC_GET_INFO		_IOWR('#', 0x00, struct fw_cdev_get_info)
+#define FW_CDEV_IOC_SEND_REQUEST	_IOW('#', 0x01, struct fw_cdev_send_request)
+#define FW_CDEV_IOC_ALLOCATE		_IOWR('#', 0x02, struct fw_cdev_allocate)
+#define FW_CDEV_IOC_DEALLOCATE		_IOW('#', 0x03, struct fw_cdev_deallocate)
+#define FW_CDEV_IOC_SEND_RESPONSE	_IOW('#', 0x04, struct fw_cdev_send_response)
+#define FW_CDEV_IOC_INITIATE_BUS_RESET	_IOW('#', 0x05, struct fw_cdev_initiate_bus_reset)
+#define FW_CDEV_IOC_ADD_DESCRIPTOR	_IOWR('#', 0x06, struct fw_cdev_add_descriptor)
+#define FW_CDEV_IOC_REMOVE_DESCRIPTOR	_IOW('#', 0x07, struct fw_cdev_remove_descriptor)
+
+#define FW_CDEV_IOC_CREATE_ISO_CONTEXT	_IOW('#', 0x08, struct fw_cdev_create_iso_context)
+#define FW_CDEV_IOC_QUEUE_ISO		_IOWR('#', 0x09, struct fw_cdev_queue_iso)
+#define FW_CDEV_IOC_START_ISO		_IOW('#', 0x0a, struct fw_cdev_start_iso)
 #define FW_CDEV_IOC_STOP_ISO		_IO('#', 0x0b)
 
 /* FW_CDEV_VERSION History