Hi, As per the XHC Spec, Max Service Opportunity Packet Count (MSOPC) value for an endpoint is set by the number of packets defined by the Endpoint Context Max Burst Size field times the Mult field. But Max Burst Size and Mult of Endpoint Context May be zero. So for that MSOPC value should be zero or it should (Max Burst + 1) * (Mult + 1)? Thanks, Nikunj -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html