Subject: Re: PowerBook5,8 - TrackPad update
From: Johannes Berg <johannes@sipsolutions.net>
To: Parag Warudkar <kernel-stuff@comcast.net>
Cc: debian-powerpc@lists.debian.org, linux-kernel@vger.kernel.org
In-Reply-To: <111620051543.21656.437B53B5000EABF300005498220074818400009A9B9CD3040A029D0A05@comcast.net>
References: <111620051543.21656.437B53B5000EABF300005498220074818400009A9B9CD3040A029D0A05@comcast.net>
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Date: Wed, 16 Nov 2005 16:49:44 +0100
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On Wed, 2005-11-16 at 15:43 +0000, Parag Warudkar wrote:
> Ah and yes I forgot about the dual finger scrolling function - newer
> trackpads allow you to use 2 fingers to slide up and down to achieve
> scrolling. I don't see any code in current appletouch.c which handles
> this. We might be able to live without it for some time but maybe we
> can't as it might screw up the reporting if not handled. (PPC assembly
> is fun to work with :)

That's a pure driver function, and we didn't implement it because we
emulate synaptics. I think your erratically moving thing might be caused
by a relayout of the order, maybe you should try to observe the
interrupt transfers the device gives you in a systematic way like I did
with my python scripts? Those display the levels of each byte. Maybe
they changed to transmitting not bytes but words for each level?

johannes

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