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

From: Dave Mielke
Date: Sun Mar 12 2017 - 17:52:38 EST


[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 low speed, and a few of them run at
>full speed. I can't remember any running at high speed.

According to my collection of data, 5 say 1.00, 15 say 1.1, and 21 say 2.0.

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