XHCI_PS_CCS
port->portsc = XHCI_PS_CCS | /* connected */
port->portsc |= XHCI_PS_CSC | XHCI_PS_CCS;
p->portsc |= XHCI_PS_CCS;
if (portsc & XHCI_PS_CCS)
if (reg & XHCI_PS_CCS)