Messages in this thread | | | Date | Sun, 12 Mar 2017 21:40:33 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk |
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On Sun, 12 Mar 2017, Dave Mielke wrote:
> [quoted lines by Alan Stern on 2017/03/12 at 21:31 -0400] > > >A device's speed is only partially related to its USB version. A > >USB-1.1 device can run at low speed or full speed. A USB-2 device can > >run at low, full, or high speed. And a USB-3 device can run at low, > >full, high, or Super speed. > > Yes, I did know this, so maybe I misunderstood what you were wondering about. > Were you wondering why 64ms was too long?
No, I was wondering why an HID device would run at high speed. Both you and Samuel implied that this was because it was a USB-2 device. But that is not an adequate answer, because it is perfectly valid for a USB-2 device to run at full speed.
Alan Stern
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