NS_TO_US
xfer_us = NS_TO_US(xfer_ns);
qh->host_us = NS_TO_US(dwc2_usb_calc_bus_time(host_speed,
qh->device_us = NS_TO_US(device_ns);
#define HS_USECS(bytes) NS_TO_US(HS_NSECS(bytes))
#define HS_USECS_ISO(bytes) NS_TO_US(HS_NSECS_ISO(bytes))