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Date:      Wed, 25 Apr 2018 06:44:29 +0200
From:      Matthias Apitz <guru@unixarea.de>
To:        Vladimir Kondratyev <vladimir@kondratyev.su>
Cc:        "J.R. Oldroyd" <fbsd@opal.com>, freebsd-mobile@freebsd.org
Subject:   Re: Asus S510UQ Elantech touchpad support
Message-ID:  <20180425044429.GA2729@c720-r314251>
In-Reply-To: <8c7127d37279315de45678c4a74a69c4@kondratyev.su>
References:  <20180424090956.3dfa3525@opal.com> <BLUPR17MB0020BE8F7272F0E78B0E51BAAE880@BLUPR17MB0020.namprd17.prod.outlook.com> <20180424111357.1689cc5c@opal.com> <8c7127d37279315de45678c4a74a69c4@kondratyev.su>

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[-- Attachment #1 --]
El día martes, abril 24, 2018 a las 01:37:57p. m. +0300, Vladimir Kondratyev escribió:

> Microsoft specs contain nothing about PS/2 touchpads. They describe only 
> devices connected through HID-capable buses like USB or IC2 [1]
> So appearance of PS/2-less touchpads is expected.
> 
> [1] 
> https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/touchpad-device-bus-connectivity
> 

I own some Acer C720 Chromebooks, all running 12-CURRENT. They came in
2015/2016 with Cyapa touchpads which ara supported:

Apr 25 06:23:40 c720-r314251 kernel: iicbus0: <Philips I2C bus> on ig4iic_pci0
Apr 25 06:23:40 c720-r314251 kernel: ugen0.1: <0x8086 XHCI root HUB> at usbus0
Apr 25 06:23:40 c720-r314251 kernel: uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1>
 on usbus0
Apr 25 06:23:40 c720-r314251 kernel: cyapa0: <Cypress APA I2C Trackpad> at addr 0xce on iicbus0
Apr 25 06:23:40 c720-r314251 kernel: cyapa0: cyapa init status 8f
Apr 25 06:23:40 c720-r314251 kernel: cyapa0: CYTRA-103006-00 buttons=LM- res=870x470

One was for repair at Acer.com here in Germany and returned with the TP
changed to some ElanTech TP as I could see with booting a Linux. This is
AFAIK not yet supported in CURRENT.

HIH

	matthias


-- 
Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub

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