lkml.org 
[lkml]   [2017]   [Mar]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk
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

\
 
 \ /
  Last update: 2017-03-13 02:41    [W:0.210 / U:0.592 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site