From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Subject: Re: Fwd: ALPS v7 TrackStick detected wrongly Date: Fri, 15 Jan 2016 12:27:16 +0100 Message-ID: <1452857236.32706.0@smtp.gmail.com> References: <1452773083.4165.0@smtp.gmail.com> <20160114121118.GU11560@pali> <20160114200726.GW11560@pali> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-wm0-f44.google.com ([74.125.82.44]:34131 "EHLO mail-wm0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753791AbcAOL1U convert rfc822-to-8bit (ORCPT ); Fri, 15 Jan 2016 06:27:20 -0500 Received: by mail-wm0-f44.google.com with SMTP id u188so19190496wmu.1 for ; Fri, 15 Jan 2016 03:27:19 -0800 (PST) In-Reply-To: <20160114200726.GW11560@pali> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Pali =?iso-8859-1?b?Um9o4XI=?= Cc: linux-input@vger.kernel.org So I can't be sure if it even detects the trackstick, because it just=20 creates the device anyway? I bought the trackpad from eBay, as Lenovo doesn't sell it separately. Apparently its pure luck if you get a Synaptics or Alps model - I got=20 the Alps, my friend got the Synaptics model. Don't know whether Lenovo uses Alps in its newer series too or if this=20 trackpad is a fake (feels and works very real though ;)) Maybe I'll try to get a synaptics then, as this was the manufacturer of= =20 the original trackpad. Greetings Martin Am Do, 14. Jan, 2016 um 9:07 schrieb Pali Roh=C3=A1r : > On Thursday 14 January 2016 13:04:43 Martin =20 > wrote: >> Is your patch intended to solve this or should I open a bug ticket? >=20 > Hi! That my patch hides Track Stick input device when ALPS touchpad > report that Track Stick is not present. Before my patch was applied > kernel created "AlpsPS/2 ALPS DualPoint Stick" input device for V7 > protocol always, even if there was no Track Stick device. >=20 > But as Dmitry said, you replaced Synaptics touchpad with ALPS which i= s > working differently. Synaptics touchpad export PS/2 bus via its own > pass-though protocol and this bus then available on kernel which do > normal PS/2 mouse detection it. So kernel bind thinkpad TPPS2 driver=20 > to > that bus. >=20 > ALPS is working differently. There is no pass-though mode and all dat= a > (touchpad, track stick) are exported in ALPS packets. Kernel ALPS=20 > driver > has special parser which can decide if packet comes from touchpad or > trackstick (based on received data). So via ALPS touchpad kernel=20 > cannot > communicate directly with trackpoint. >=20 > So I guess... in case you have thinkpad trackpoint HW and ALPS=20 > touchpad > which cannot work with that trackpoint you just do not get trackpoint > data. Here kernel cannot do anything. >=20 > I suspect that if you apply my patch (which check presence of > trackstick) then kernel probably do not export this track stick devic= e > "AlpsPS/2 ALPS DualPoint Stick" anymore... >=20 >> I: Bus=3D0011 Vendor=3D0002 Product=3D0008 Version=3D0700 >> N: Name=3D"AlpsPS/2 ALPS DualPoint Stick" >> P: Phys=3Disa0060/serio1/input1 >> S: Sysfs=3D/devices/platform/i8042/serio1/input/input8 >> U: Uniq=3D >> H: Handlers=3Dmouse0 event6 >> B: PROP=3D21 >> B: EV=3D7 >> B: KEY=3D70000 0 0 0 0 >> B: REL=3D3 >=20 > -- > Pali Roh=C3=A1r > pali.rohar@gmail.com -- To unsubscribe from this list: send the line "unsubscribe linux-input" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html