diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c index dc36945962..7cbc9a8502 100644 --- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c +++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c @@ -298,10 +298,15 @@ XhcCreateTransferTrb ( TrbStart->TrbCtrSetup.IOC = 1; TrbStart->TrbCtrSetup.IDT = 1; TrbStart->TrbCtrSetup.Type = TRB_TYPE_SETUP_STAGE; - if (Urb->Ep.Direction == EfiUsbDataIn) { - TrbStart->TrbCtrSetup.TRT = 3; - } else if (Urb->Ep.Direction == EfiUsbDataOut) { - TrbStart->TrbCtrSetup.TRT = 2; + if (Urb->DataLen > 0) { + if (Urb->Ep.Direction == EfiUsbDataIn) { + TrbStart->TrbCtrSetup.TRT = 3; + } else if (Urb->Ep.Direction == EfiUsbDataOut) { + TrbStart->TrbCtrSetup.TRT = 2; + } else { + DEBUG ((DEBUG_ERROR, "XhcCreateTransferTrb: Direction sholud be IN or OUT when Data exists!\n")); + ASSERT (FALSE); + } } else { TrbStart->TrbCtrSetup.TRT = 0; } diff --git a/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c index 32d72ef03c..5b9892a1cb 100644 --- a/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c +++ b/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c @@ -291,10 +291,15 @@ XhcPeiCreateTransferTrb ( TrbStart->TrbCtrSetup.IOC = 1; TrbStart->TrbCtrSetup.IDT = 1; TrbStart->TrbCtrSetup.Type = TRB_TYPE_SETUP_STAGE; - if (Urb->Ep.Direction == EfiUsbDataIn) { - TrbStart->TrbCtrSetup.TRT = 3; - } else if (Urb->Ep.Direction == EfiUsbDataOut) { - TrbStart->TrbCtrSetup.TRT = 2; + if (Urb->DataLen > 0) { + if (Urb->Ep.Direction == EfiUsbDataIn) { + TrbStart->TrbCtrSetup.TRT = 3; + } else if (Urb->Ep.Direction == EfiUsbDataOut) { + TrbStart->TrbCtrSetup.TRT = 2; + } else { + DEBUG ((DEBUG_ERROR, "XhcPeiCreateTransferTrb: Direction sholud be IN or OUT when Data exists!\n")); + ASSERT (FALSE); + } } else { TrbStart->TrbCtrSetup.TRT = 0; }