635 struct em28xx {  struct
639 	struct em28xx_v4l2 *v4l2;  argument
640 	struct em28xx_dvb *dvb;  argument
641 	struct em28xx_audio adev;  argument
642 	struct em28xx_IR *ir;  argument
647 	enum em28xx_chip_id chip_id;  argument
656 	enum em28xx_int_audio_type int_audio_type;  argument
657 	enum em28xx_usb_audio_type usb_audio_type;  argument
660 	struct em28xx_board board;  argument
662 	enum em28xx_sensor em28xx_sensor;	// camera specific  argument
664 	// Some older em28xx chips needs a waiting time after writing  argument
671 	struct em28xx_audio_mode audio_mode;  argument
678 	struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES];  argument
689 	enum em28xx_amux amux_map[MAX_EM28XX_INPUT];  argument
701 	struct mutex lock;		/* protects em28xx struct */  argument
712 	struct em28xx_dmaqueue vidq;  argument
713 	struct em28xx_dmaqueue vbiq;  argument
714 	struct em28xx_usb_ctl usb_ctl;  argument
716 	spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */  argument
719 	struct usb_interface *intf;	// the usb interface
720 	u8 ifnum;		// number of the assigned usb interface
721 	u8 analog_ep_isoc;	// address of isoc endpoint for analog
745 	int (*em28xx_write_regs)(struct em28xx *dev, u16 reg,  argument
747 	int (*em28xx_read_reg)(struct em28xx *dev, u16 reg);  argument
748 	int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg,  argument
750 	int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg,  argument
752 	int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg);  argument
754 	enum em28xx_mode mode;  argument
772 	struct em28xx	*dev_next;  argument
776 #define kref_to_dev(d) container_of(d, struct em28xx, ref)  argument