XHCI_CMD
WriteOpReg(XHCI_CMD, ReadOpReg(XHCI_CMD) & ~CMD_RUN);
ReadOpReg(XHCI_CMD), ReadOpReg(XHCI_STS));
WriteOpReg(XHCI_CMD, ReadOpReg(XHCI_CMD) | CMD_HCRST);
if (WaitOpBits(XHCI_CMD, CMD_HCRST, 0) != B_OK) {
WriteOpReg(XHCI_CMD, 0);
ReadOpReg(XHCI_CMD), ReadOpReg(XHCI_STS));
if ((ReadOpReg(XHCI_CMD) & CMD_RUN) != 0) {
WriteOpReg(XHCI_CMD, CMD_RUN | CMD_INTE | CMD_HSEE);