Dave Mielke, on lun. 13 mars 2017 22:20:01 -0400, wrote:
> It's possible that this device is using high speed because it offers a
> feature
> to transfer its internal clipboard to the host, and it allows that clipboard
> to
> contain lots of data. Interestingly, though, hidden within a usage no
Thank you for your very helpful answer. I really do appreciate it.
It's possible that this device is using high speed because it offers a feature
to transfer its internal clipboard to the host, and it allows that clipboard to
contain lots of data. Interestingly, though, hidden within a usage not
On Mon, 13 Mar 2017, Samuel Thibault wrote:
> 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
> > > >U
On Sun, 12 Mar 2017, Dave Mielke wrote:
> [quoted lines by Alan Stern on 2017/03/12 at 21:40 -0400]
>
> >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
[quoted lines by Alan Stern on 2017/03/12 at 21:40 -0400]
>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 f
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-
[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.
Y
[quoted lines by Alan Stern on 2017/03/12 at 21:40 -0400]
>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 f
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 dev
On Sun, 12 Mar 2017, Dave Mielke wrote:
> [quoted lines by Alan Stern on 2017/03/12 at 17:18 -0400]
>
> >Interesting. This is a high-speed device that mistakenly uses the
> >low/full-speed encoding for an interrupt bInterval value?
>
> Yes.
>
> >That's pretty unusual. Most HID devices (which
[quoted lines by Alan Stern on 2017/03/12 at 17:18 -0400]
>Interesting. This is a high-speed device that mistakenly uses the
>low/full-speed encoding for an interrupt bInterval value?
Yes.
>That's pretty unusual. Most HID devices (which includes the Braille
>devices I have heard of) run at lo
Alan Stern, on dim. 12 mars 2017 17:18:51 -0400, wrote:
> Interesting. This is a high-speed device that mistakenly uses the
> low/full-speed encoding for an interrupt bInterval value?
Yes...
> That's pretty unusual. Most HID devices (which includes the Braille
> devices I have heard of) run at
On Sun, 12 Mar 2017, Samuel Thibault wrote:
> Some USB 2.0 devices erroneously report millisecond values in
> bInterval. The generic config code manages to catch most of them,
> but in some cases it's not completely enough.
>
> The case at stake here is a USB 2.0 braille device, which wants to
>
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