_usb_device_info
void sense_callback(struct _usb_device_info *udi, CCB_SCSIIO *ccbio,
void transfer_callback(struct _usb_device_info *udi, CCB_SCSIIO *ccbio,
struct _usb_device_info; /* forward, we can be included from device_info.h */
typedef void (*ud_transfer_callback)(struct _usb_device_info *udi,
status_t (*init)(struct _usb_device_info *udi);
status_t (*reset)(struct _usb_device_info *udi);
void (*transfer)(struct _usb_device_info *udi,
status_t (*transform)(struct _usb_device_info *udi,