* Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> wrote: > Hi Ingo, > > On 01/26/2017 03:19 PM, Ingo Molnar wrote: > > * Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> wrote: > > > >> Fair enough. > >> > >> USB connection is stable enough, unless the user unplugs the > >> USB cable during debugging. > > What does the hardware do in this case? The XHCI registers are in the host > > hardware, so they won't disappear, right? Is there some cable connection status > > bit we can extract without interrupts? > > Yes, there are register bits for us to know the cable status. I will go > through the spec again and give you more accurate answer later. Ok, that's good news - so we don't really have to time out and we don't have to rely on the user holding the phone right either. > I'm sorry. I will be off during the next 7 days for Chinese New Year > holiday. My email access will be very limited during this time. I will > revisit this thread after I am back from holiday. > > Sorry for the inconvenience. No problem, have fun! Thanks, Ingo -- 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