linux-kernel - Re: [PATCH] usb-core: Add MS_INTR

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20170312214247.GB20039@beta.private.mielke.cc>
Date:   Sun, 12 Mar 2017 17:42:47 -0400
From:   Dave Mielke <dave@...lke.cc>
To:     Alan Stern <stern@...land.harvard.edu>
Cc:     Samuel Thibault <samuel.thibault@...-lyon.org>,
        gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, kevin.derome@...tech.eu,
        clause.andreabush@...il.com, mengualjeanphi@...e.fr
Subject: Re: [PATCH] usb-core: Add MS_INTR_BINTERVAL USB quirk

[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.

-- 
Dave Mielke           | 2213 Fox Crescent | The Bible is the very Word of God.
Phone: 1-613-726-0014 | Ottawa, Ontario   | http://Mielke.cc/bible/
EMail: Dave@...lke.cc | Canada  K2A 1H7   | http://FamilyRadio.org/