646 struct em28xx {  struct
650 	struct em28xx_v4l2 *v4l2;  argument
651 	struct em28xx_dvb *dvb;  argument
652 	struct em28xx_audio adev;  argument
653 	struct em28xx_IR *ir;  argument
658 	enum em28xx_chip_id chip_id;  argument
667 	enum em28xx_int_audio_type int_audio_type;  argument
668 	enum em28xx_usb_audio_type usb_audio_type;  argument
671 	struct em28xx_board board;  argument
673 	enum em28xx_sensor em28xx_sensor;	// camera specific  argument
675 	// Some older em28xx chips needs a waiting time after writing  argument
682 	struct em28xx_audio_mode audio_mode;  argument
689 	struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES];  argument
700 	enum em28xx_amux amux_map[MAX_EM28XX_INPUT];  argument
712 	struct mutex lock;		/* protects em28xx struct */  argument
723 	struct em28xx_dmaqueue vidq;  argument
724 	struct em28xx_dmaqueue vbiq;  argument
725 	struct em28xx_usb_ctl usb_ctl;  argument
727 	spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */  argument
730 	struct usb_interface *intf;	// the usb interface
731 	u8 ifnum;		// number of the assigned usb interface
732 	u8 analog_ep_isoc;	// address of isoc endpoint for analog
756 	int (*em28xx_write_regs)(struct em28xx *dev, u16 reg,  argument
758 	int (*em28xx_read_reg)(struct em28xx *dev, u16 reg);  argument
759 	int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg,  argument
761 	int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg,  argument
763 	int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg);  argument
765 	enum em28xx_mode mode;  argument
783 	struct em28xx	*dev_next;  argument
787 #define kref_to_dev(d) container_of(d, struct em28xx, ref)  argument