linux-kernel - Re: ALPS touchpad with new Dell not recognised

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Message-ID: <46B46DFA.7000909@gmail.com>
Date:	Sat, 04 Aug 2007 22:15:54 +1000
From:	William Pettersson <william.pettersson@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
CC:	vojtech@...e.cz
Subject: Re: ALPS touchpad with new Dell not recognised

Hi LKML,
Thanks to Vojtech for some advice, I finally got something happening
with this.  Turns out I had to add support for a new model in alps.c,
the attached file does this successfully for my laptop.  It'd be nice to
have others test it, but I am yet to find anyone else who has this same
laptop, with the same mouse issues I have.

With this patch, I now get a functioning touchpad, including side
scrolling, circle scrolling, corner taps etc.  However, I did have to
ramp the configuration numbers up significantly from my old Thinkpad
with its synaptics touchpad.  Minspeed is now 0.8 and maxspeed is 10. 
Also the VertScrollDelta is 10.  I don't know whether these numbers are
crazy high, or just normal for the Alps though.

View attachment "alps.patch" of type "text/plain" (481 bytes)