From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephan Mueller <smueller@chronox.de>
Subject: Re: USB HID devices not linked to RNG
Date: Mon, 07 Sep 2015 23:09:17 +0200
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To: Mike Mestnik <cheako@mikemestnik.net>
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Am Montag, 7. September 2015, 15:07:47 schrieb Mike Mestnik:

Hi Mike,

>This is just an off the wall guess.  Wouldn't such entropy already be
>collected at a lower level, like raw usb traffic?

The RNG collects data from interrupts (that also covers normal PS/2 mice and 
keyboards), block devices and HID (it hooks itself into the input layer).

So, raw USB traffic is not a source of entropy other than for the interrupts 
the base PCI traffic would generate.

What I am wondering: isn't the USB mouse/keyboard support hooking into the 
kernel's input layer?

Ciao
Stephan