SRB_EXTEND_MSGIN
if (!(pSRB->SRBState & SRB_EXTEND_MSGIN)) {
pSRB->SRBState |= SRB_EXTEND_MSGIN;
pSRB->SRBState &= ~(SRB_EXTEND_MSGIN+SRB_DO_WIDE_NEGO);
pSRB->SRBState &= ~(SRB_EXTEND_MSGIN+SRB_DO_SYNC_NEGO);