443 struct ehci_qh {  struct
455   union ehci_qh_shadow  qh_next;  /* ptr to qh; or periodic */  argument
458   struct ehci_qh    *pReclaimQh;  argument
459   atomic_t    tRefCnt;
460   U32    u32Stamp;
461   unsigned char      qh_status;
462   U8 xacterrs;
463   unsigned char      u8Usecs;
464   unsigned char      u8Gap_uf;
465   unsigned char      c_usecs;
466   U16    u16Period;
467   U16    u16Start;
469   struct usb_device	*dev;		/* for TT */