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Re: kern/55103: /dev/wsmouse returns EINVAL

The following reply was made to PR kern/55103; it has been noted by GNATS.

From: =?UTF-8?B?SmFyb23DrXIgRG9sZcSNZWs=?= <>
To: "" <>
Cc:, Michael van Elst <>
Subject: Re: kern/55103: /dev/wsmouse returns EINVAL
Date: Thu, 2 Apr 2020 10:05:36 +0200

 Le jeu. 2 avr. 2020 =C3=A0 07:25, Michael van Elst <> a =
 =C3=A9crit :
 >  On Wed, Apr 01, 2020 at 07:38:52PM -0700, Paul Goyette wrote:
 >  > Looking at the original code, it seems pretty clear that the intent wa=
 >  > to restrict use of version-0 to compat code, and that without compat
 >  > code one should use WSEVENT_VERSION.  And that is what the current cod=
 >  > implements, as far as I can tell.
 >  So, in your opinion, everything is correct now because reading the
 >  mouse without a special program that negotiates the non-default
 >  protocol version is forbidden. It wasn't forbidden in the beginning,
 FWIW, I think the most useful behaviour is default to latest version,
 and the COMPAT_05 version would simply force the default to be the
 version-0. If you want to be really nice, it would be cool to add a
 sysctl to set the default version.

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