Messages in this thread | | | Date | Thu, 26 Jan 2017 09:17:33 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH v5 1/4] usb: dbc: early driver for xhci debug capability |
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* Lu Baolu <baolu.lu@linux.intel.com> wrote:
> Hi Ingo, > > On 01/26/2017 03:19 PM, Ingo Molnar wrote: > > * Lu Baolu <baolu.lu@linux.intel.com> 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
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