Re: kern/52070: Keyboard freeze after using touchpad

[Paul Goyette <paul%whooppee.com@localhost>]

The following reply was made to PR kern/52070; it has been noted by GNATS.

From: Paul Goyette <paul%whooppee.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/52070: Keyboard freeze after using touchpad
Date: Mon, 2 May 2022 17:14:17 -0700 (PDT)

 There's some concern here that, while the patch might well help
 in the submitter's situation, other situations might be adversely
 affected.  In particular, what is the behaviour of the patch on
 systems which have _nothing_ connected to the aux port?
 
 FWIW, it appears that linux takes a bit of a different approach
 to probing on the aux port.  They send the "random" 0x5a value
 with a "loop" command, and fallback to using "echo" if the loop
 back fails.  (At least that's what I understand from discussion
 with jmcneill@ on IRC.)
 
 Any volunteeers who can test the effect of the patch on a system
 with _nothing_ on the aux port?
 
 
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