Changes between Initial Version and Version 1 of Ticket #1045, comment 38


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Timestamp:
Jan 8, 2022, 9:32:51 AM (7 months ago)
Author:
rudolfc

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  • Ticket #1045, comment 38

    initial v1  
    33Anyhow, for this case I suspect it's not just the device that is slow, it might also be connected to the power/ramp-up inside the host or it's local power supply and especially the combination of 'slow' devices with such host controller. As stated before, I also see a lot of trouble on my surface 3 which also uses the xhci driver: though at this point it remains to be seen if it would be solved there with the timing update we are looking at. (when the driver is updated I can test that since it's practically impossible to do that with a non-packaged solution I fear which seems needed on UEFI (I might be mistaken in case of usb bus drivers)
    44
    5 BTW I did also modify/test with usb's hub.cpp where I originally suspected the timing error: but relaying there, or just not exec'ing the debounce routine did not solve the audio card problem.
     5BTW I did also modify/test with usb's hub.cpp where I originally suspected the timing error: but delaying there, or just not exec'ing the debounce routine did not solve the audio card problem.
    66
    77For usb_audio even the header file we have is still incomplete (USB_audio.h). It does not support v2 audio spec (missing pieces): I had to expand it a little for my tests.