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Date: Tue, 11 Jun 2019 12:32:33 +0800 From: Hui Wang <hui.wang@...onical.com> To: Xiaoxiao Liu <xiaoxiao.liu-1@...alps.com>, Pali Rohár <pali.rohar@...il.com> Cc: XiaoXiao Liu <sliuuxiaonxiao@...il.com>, "dmitry.torokhov@...il.com" <dmitry.torokhov@...il.com>, "peter.hutterer@...-t.net" <peter.hutterer@...-t.net>, "linux-input@...r.kernel.org" <linux-input@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Xiaojian Cao <xiaojian.cao@...alps.com>, "zhangfp1@...ovo.com" <zhangfp1@...ovo.com>, Naoki Saito <naoki.saito@...salpine.com>, Hideo Kawase <hideo.kawase@...salpine.com> Subject: Re: 答复: 答复: 答复: [PATCH] input: alps-fix the issue alps cs19 trackstick do not work. On 2019/6/11 上午11:23, Hui Wang wrote: > On 2019/6/11 上午11:05, Xiaoxiao Liu wrote: >> Hi Pali, >> >> I discussed with our FW team about this problem. >> We think the V8 method means a touchpad feature and does not fit the >> CS19 trackpoint device. >> CS19 TrackPoint needn't use any Absolute (Raw) mode and is usually >> use standard mouse data. >> CS19 TrackPoint device is a completely different device with >> DualPoint device of Dell/HP. >> CS19 TrackPoint device is independent of Touchpad. (Touchpad is >> connecting by I2C, TrackPoint is directly connecting with PS2 port.) >> And it has completely another FW. >> >> So we think it is better to use the mouse mode for CS19 trackpoint. > > Maybe here is some mis-understanding, the mouse mode here doesn't > mean we use psmouse-base.c for cs19 (bare ps/2 mouse), we plan to use > trackpoint.c to drive this HW, so this trackpoint has all features a > trackpoint should have. > And I sent a patch one month ago to let the the trackpoint.c to drive this HW: https://www.spinics.net/lists/linux-input/msg61341.html, maybe that patch is reference. > Regards, > > Hui. > >> >> Best Regards >> Shona >> -----邮件原件----- >> 发件人: Pali Rohár <pali.rohar@...il.com> >> 发送时间: Monday, June 10, 2019 6:43 PM >> 收件人: 劉 曉曉 Xiaoxiao Liu <xiaoxiao.liu-1@...alps.com> >> 抄送: XiaoXiao Liu <sliuuxiaonxiao@...il.com>; >> dmitry.torokhov@...il.com; peter.hutterer@...-t.net; >> hui.wang@...onical.com; linux-input@...r.kernel.org; >> linux-kernel@...r.kernel.org; 曹 曉建 Xiaojian Cao >> <xiaojian.cao@...alps.com>; zhangfp1@...ovo.com; 斉藤 直樹 Naoki Saito >> <naoki.saito@...salpine.com>; 川瀬 英夫 Hideo Kawase >> <hideo.kawase@...salpine.com> >> 主题: Re: 答复: 答复: [PATCH] input: alps-fix the issue alps cs19 >> trackstick do not work. >> >> On Monday 10 June 2019 10:03:51 Xiaoxiao Liu wrote: >>> Hi Pali, >> Hi! >> >>> We register our CS19 device as ALPS_ONLY_TRACKSTICK device. >>> And let the V8 protocol function support the process of >>> ALPS_ONLY_TRACKSTICK device. >>> >>> I want to confirm if this solution OK? >> Yes, it is fine. Just make sure that touchapad input device is not >> registered when this ALPS_ONLY_TRACKSTICK flag is set. So userspace >> would not see any fake/unavailable touchpad input device. >> >>> Xiaoxiao.Liu >> -- >> Pali Rohár >> pali.rohar@...il.com
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