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Subject: [Bug 192924] New: atp(4) device shows no activity until atp.ko
 reloaded
Date: Fri, 22 Aug 2014 17:40:02 +0000
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: Base System
X-Bugzilla-Component: conf
X-Bugzilla-Version: 11.0-CURRENT
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: Affects Only Me
X-Bugzilla-Who: kate@elide.org
X-Bugzilla-Status: Needs Triage
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192924

            Bug ID: 192924
           Summary: atp(4) device shows no activity until atp.ko reloaded
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: ---
         Component: conf
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: kate@elide.org

Using 11.0-CURRENT on a macbook, -r 270176, on boot I found catting /dev/apt
showed no output when i touched the trackpad.

If I kldunload atp and load it again, then (confusingly) the wsp0 device is
created instead. I can cat that fine, and see data from the trackpad's
movements.

I think either wsp(4) or ums(4) is interfering with the priority for devd.conf
when attaching devices. As I understand it, atp(4) obsoletes wsp(4). So I
worked around this by changing the priorities such that atp(4) attaches before
ums(4), and I commented out wsp(4) entirely:

notify 120 {
        match "system" "DEVFS";
        match "subsystem" "CDEV";
        match "type" "CREATE";
        match "cdev" "atp[0-9]+";

        action "/etc/rc.d/moused quietstart $cdev";
};

notify 100 {
        match "system" "DEVFS";
        match "subsystem" "CDEV";
        match "type" "CREATE";
        match "cdev" "ums[0-9]+";

        action "/etc/rc.d/moused quietstart $cdev";
};

#notify 110 {
#       match "system" "DEVFS";
#       match "subsystem" "CDEV";
#       match "type" "CREATE";
#       match "cdev" "wsp[0-9]+";

#       action "/etc/rc.d/moused quietstart $cdev";
#};

I'm not sure what's the proper thing to do. My guess is that wsp(4) ought to be
removed entirely, if atp(4) includes its supported models.

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