usb/gadget/f_mass_storage.c

347 struct fsg_common {  struct
348 	struct usb_gadget	*gadget;
349 	struct usb_composite_dev *cdev;
350 	struct fsg_dev		*fsg, *new_fsg;
351 	wait_queue_head_t	fsg_wait;
354 	struct rw_semaphore	filesem;
357 	spinlock_t		lock;
359 	struct usb_ep		*ep0;		/* Copy of gadget->ep0 */
360 	struct usb_request	*ep0req;	/* Copy of cdev->req */
361 	unsigned int		ep0_req_tag;
363 	struct fsg_buffhd	*next_buffhd_to_fill;
364 	struct fsg_buffhd	*next_buffhd_to_drain;
365 	struct fsg_buffhd	*buffhds;
367 	int			cmnd_size;
368 	u8			cmnd[MAX_COMMAND_SIZE];
370 	unsigned int		nluns;
371 	unsigned int		lun;
372 	struct fsg_lun		*luns;
373 	struct fsg_lun		*curlun;
375 	unsigned int		bulk_out_maxpacket;
376 	enum fsg_state		state;		/* For exception handling */
377 	unsigned int		exception_req_tag;
379 	enum data_direction	data_dir;
380 	u32			data_size;
381 	u32			data_size_from_cmnd;
382 	u32			tag;
383 	u32			residue;
384 	u32			usb_amount_left;
386 	unsigned int		can_stall:1;
387 	unsigned int		free_storage_on_release:1;
388 	unsigned int		phase_error:1;
389 	unsigned int		short_packet_received:1;
390 	unsigned int		bad_lun_okay:1;
391 	unsigned int		running:1;
393 	int			thread_wakeup_needed;
394 	struct completion	thread_notifier;
395 	struct task_struct	*thread_task;
398 	const struct fsg_operations	*ops;
400 	void			*private_data;
406 	char inquiry_string[8 + 16 + 4 + 1];
408 	struct kref		ref;