From: Paul Mackerras <paulus@cs.anu.edu.au>
To: bh40@calva.net
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: ADB Reset
Date: Thu, 11 Mar 1999 09:51:45 +1100 [thread overview]
Message-ID: <199903102251.JAA08378@tango.anu.edu.au> (raw)
In-Reply-To: <19990310131908.030129@mail.mipsys.com> (message from Benjamin Herrenschmidt on Wed, 10 Mar 1999 13:19:08 +0100)
Benjamin Herrenschmidt <bh40@calva.net> wrote:
> After the bus reset, the mouse must be re-initialised to handler 4. In
> fact, the whole device probing and init must be redone (mac_keyb.c). I'm
> working on a simple design that allow ADB peripherial drivers to register
> to the ADB core in order to be notified of bus resets. Stay tuned.
If we have two devices with the same default ID, they may get assigned
different IDs after re-probing. Any ideas how to cope with that?
On my 3400, after a snooze, sometimes the adb bus has been reset and
sometimes it hasn't. I haven't been able to discern any pattern,
e.g. it doesn't seem to depend on how long the machine is asleep for.
I believe that the power to the adb bus is supposed to stay on during
sleep, so I don't see why it's getting reset.
Paul.
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next prev parent reply other threads:[~1999-03-10 22:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-03-05 10:08 ADB Reset Hubert Figuiere
1999-03-05 14:32 ` Benjamin Herrenschmidt
1999-03-10 11:36 ` Hubert Figuiere
1999-03-10 12:19 ` Benjamin Herrenschmidt
1999-03-10 16:40 ` Hubert Figuiere
1999-03-10 22:51 ` Paul Mackerras [this message]
1999-03-11 11:53 ` Benjamin Herrenschmidt
1999-03-11 7:55 ` Hubert Figuiere
1999-03-11 15:37 ` David A. Gatwood
1999-03-10 15:43 ` David A. Gatwood
-- strict thread matches above, loose matches on Subject: below --
1999-03-05 13:47 Christian Jaeger
1999-03-05 18:46 ` Hubert Figuiere
1999-03-11 13:16 Benjamin Herrenschmidt
1999-03-11 14:26 ` Geert Uytterhoeven
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