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Date:      Thu, 04 Feb 2021 15:47:05 +0000
From:      bugzilla-noreply@freebsd.org
To:        usb@FreeBSD.org
Subject:   [Bug 253249] USB keyboard: repeated and out of order characters
Message-ID:  <bug-253249-19105-4pKDmJkORc@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-253249-19105@https.bugs.freebsd.org/bugzilla/>
References:  <bug-253249-19105@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253249

--- Comment #4 from Hans Petter Selasky <hselasky@FreeBSD.org> ---
USB keybards can report multiple events at the same time.

If multiple events are detected between USB interrupt events, it is not
possible to distinguish the order of the key events. This is undocumented
behaviour!

Are these keyboards firmware upgradeable?

--HPS

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