Asus S510UQ Elantech touchpad support

[Vladimir Kondratyev]

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

On 2018-04-24 07:14, J.R. Oldroyd wrote:
> I should have reported that I already tried that!  No difference.
> 
> This might be an IRQ problem rather than lack of driver support...
> 
> 	psm0: unable to allocate IRQ
> 
> -jr
> 
> 
> On Tue, 24 Apr 2018 03:54:08 +0000 Tim - PortableUNIX
> <tnaple at portableunix.com> wrote:
>> 
>> J.R.,
>> 
>> That is an Elantech.  Try hw.psm.elantech_support="1" in 
>> /boot/loader.conf
>> 
>> Thank you,
>> Tim
>> 
>> -----Original Message-----
>> From: owner-freebsd-mobile at freebsd.org 
>> [mailto:owner-freebsd-mobile at freebsd.org] On Behalf Of J.R. Oldroyd
>> Sent: Monday, April 23, 2018 7:10 PM
>> To: freebsd-mobile at freebsd.org
>> Subject: Asus S510UQ Elantech touchpad support
>> 
>> A few weeks ago, I posted to questions@ with an overview of FreeBSD 
>> running on an Asus 15-S510UQ.  All works well, except the 
>> mouse/touchpad which does not work at all.
>> 
>> Looking into this more, the touchpad appears to be an Elantech device 
>> of some sort, maybe a 1300 or 7001 series.  When I boot OpenBSD on a 
>> USB stick, there are messages to that effect.  OpenBSD appears to 
>> support this device in their wsmouse and usb_hid drivers.
>> 
>> Is there any development of this here in FreeBSD?
>> 
>> If not, what would be the best approach to getting support added, in 
>> terms of what existing driver mods are needed and what new ones?
>> 
>> 	-jr
>> 
>> 
>> -- Reposted from feeebsd-questions@ on Thu Mar 22 14:48:58 UTC 2018:
>> 
>> Just put FreeBSD 12-CURRENT on an Asus VivoBook 15-S510UQ and I'm very 
>> happy to report that almost everything works with simply minor config.
>> 
>> System overview (all working):
>> 
>> CPU:	Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz (1992.09-MHz K8-class 
>> CPU)
>> Mem:	8Gb (expandable to 16Gb)
>> HDD:	1Tb (Toshiba MQ04ABF100)
>> SSD:	128Mb (Toshiba THNSNK128GVN8)
>> Ether:	none
>> WiFi:	Intel(R) Dual Band Wireless AC 8265 (works on 12-CURRENT)
>> Video:	Intel UHD Graphics 620 (1920x1080)
>> Audio:	Intel Kabylake (HDMI/DP 8ch)
>> Webcam:	Azurewave USB2.0 VGA UVC WebCam
>> 
>> Even ACPI S3 suspend/resume appears to work just fine with video and 
>> WiFi restarting properly after the resume.
>> 
>> The things not working yet are:
>> 
>> Mouse:	unknown type (not yet working)
>> Video2: NVIDIA GM108M [GeForce 940MX] (not yet working)
>> BT:	usb device (vendor 0x8087 product 0x0a2b) (not yet working)
>> 
>> I am using a USB mouse for now, which works fine.  The built-in 
>> mouse/touchpad/fingerprint reader is not detected.  Any suggestions 
>> for that would be appreciated.
>> 
>> I have not yet got the NVIDIA 940MX going, but I haven't really looked 
>> into which drivers are needed for that yet.
>> 
>> Finally, there's a bluetooth device too, but I have not yet looked at 
>> that, either.
>> 
>> dmesg:		http://opal.com/jr/asus_s510uq/dmesg.txt
>> pciconf:	http://opal.com/jr/asus_s510uq/pciconf.txt
>> usbconfig:	http://opal.com/jr/asus_s510uq/usbconfig.txt
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> 
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-- 
WBR
Vladimir Kondratyev