From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: Initialization of TPPS/2 IBM TrackPoint in too slow Date: Fri, 31 Jul 2015 10:08:49 -0700 Message-ID: <20150731170849.GG5613@dtor-ws> References: <201507311859.22045@pali> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <201507311859.22045@pali> Sender: linux-kernel-owner@vger.kernel.org To: Pali =?iso-8859-1?Q?Roh=E1r?= Cc: Hans de Goede , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-input@vger.kernel.org On Fri, Jul 31, 2015 at 06:59:21PM +0200, Pali Roh=E1r wrote: > Hello, >=20 > here is output from dmesg for psmouse.ko >=20 > [ 266.378751] psmouse: calling psmouse_init() > [ 267.167150] psmouse serio1: synaptics: queried max coordinates: x = [..5676], y [..4758] > [ 267.198416] psmouse serio1: synaptics: queried min coordinates: x = [1266..], y [1096..] > [ 267.260402] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1,= id: 0x1e2b1, caps: 0xf002a3/0x943300/0x12e800, board=20 > id: 3072, fw id: 2560 > [ 267.260418] psmouse serio1: synaptics: serio: Synaptics pass-throu= gh port at isa0060/serio1/input0 > [ 267.299629] input: SynPS/2 Synaptics TouchPad as /devices/platform= /i8042/serio1/input/input39 > [ 268.697333] psmouse serio4: cypress_ps2: send extension cmd 0x00, = [0 0 0 0] > [ 269.259351] psmouse serio4: cypress_ps2: Command 0x00 response dat= a (0x): 00 00 14 > [ 269.562762] psmouse serio4: alps: E6 report: 00 00 64 > [ 269.825915] psmouse serio4: alps: E7 report: 10 00 64 > [ 270.086671] psmouse serio4: alps: EC report: 10 00 64 > [ 270.125866] psmouse serio4: alps: Likely not an ALPS touchpad: E7=3D= 10 00 64, EC=3D10 00 64 > [ 270.388147] psmouse serio4: elantech: unexpected magic knock resul= t 0x00, 0x02, 0x64. > [ 271.390241] psmouse serio4: trackpoint: IBM TrackPoint firmware: 0= x0e, buttons: 3/3 > [ 271.586156] input: TPPS/2 IBM TrackPoint as /devices/platform/i804= 2/serio1/serio4/input/input40 >=20 > As you can see it takes about 5 seconds to initialize TrackPoint inpu= t > device. And about 3 seconds from stage after synaptics export serio > device. I think this is just because of trying to detect device type. > Is there any way how to speed it up? Maybe for synaptics serio device= s > try to probe for TPPS/2 at first? Did you abandon your trusty Dell with ALPS? ;) Yes, I think we should limit the number of protocols that we probe on pass-through port to standard PS/2 flavors + TPPS/2 since I have never seen anything else there. Thanks. --=20 Dmitry