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Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk

From Samuel Thibault <samuel.thibault@ens-lyon.org>
Newsgroups linux.kernel
Subject Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk
Date 2017-03-13 08:10 +0100
Message-ID <tkshb-5nd-7@gated-at.bofh.it> (permalink)
References <tknhv-1pV-1@gated-at.bofh.it> <tknhv-1pV-5@gated-at.bofh.it>
Organization I am not organized

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Alan Stern, on dim. 12 mars 2017 21:40:33 -0400, wrote:
> 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.

to_usb_device(ddev)->speed really is USB_SPEED_HIGH, otherwise the quirk
wouldn't work :)

Samuel

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[PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Samuel Thibault <samuel.thibault@ens-lyon.org> - 2017-03-12 21:20 +0100
  Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Alan Stern <stern@rowland.harvard.edu> - 2017-03-12 22:20 +0100
    Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Samuel Thibault <samuel.thibault@ens-lyon.org> - 2017-03-12 22:50 +0100
    Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Dave Mielke <dave@mielke.cc> - 2017-03-12 23:00 +0100
      Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Alan Stern <stern@rowland.harvard.edu> - 2017-03-13 02:40 +0100
        Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Dave Mielke <dave@mielke.cc> - 2017-03-13 02:50 +0100
          Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Alan Stern <stern@rowland.harvard.edu> - 2017-03-13 02:50 +0100
            Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Samuel Thibault <samuel.thibault@ens-lyon.org> - 2017-03-13 08:10 +0100
              Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk Alan Stern <stern@rowland.harvard.edu> - 2017-03-14 02:50 +0100

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