I2C trackpad

[Ian FREISLICH]

Hey,

I recently acquired a new laptop (Asus UX490U) which for the most part
works with current except that:

1. Sound output doesn't work.
2. The trackpad doesn't work.

I'm not bothered about sound and I haven't investigated that yet.  The
trackpad not working is a nuisance, but I don't think that there's a
short term fix.  I think it's connected via an I2C bus on one of two I2C
controllers that don't have a driver attached:

***@pci0:0:21:0:      class=0x118000 card=0x1c301043 chip=0x9d608086
rev=0x21 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Sunrise Point-LP Serial IO I2C Controller'
    class      = dasp
***@pci0:0:21:1:      class=0x118000 card=0x1c301043 chip=0x9d618086
rev=0x21 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Sunrise Point-LP Serial IO I2C Controller'
    class      = dasp

I've done some research and it looks like support is a long way off but
I'm hoping someone has a work in progress I can test or hack on.

Ian

[Oleksandr Tymoshenko]

Post by Ian FREISLICH
Hey,
I recently acquired a new laptop (Asus UX490U) which for the most part
1. Sound output doesn't work.
2. The trackpad doesn't work.
I'm not bothered about sound and I haven't investigated that yet.  The
trackpad not working is a nuisance, but I don't think that there's a
short term fix.  I think it's connected via an I2C bus on one of two I2C
rev=0x21 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Sunrise Point-LP Serial IO I2C Controller'
    class      = dasp
rev=0x21 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Sunrise Point-LP Serial IO I2C Controller'
    class      = dasp
I've done some research and it looks like support is a long way off but
I'm hoping someone has a work in progress I can test or hack on.

There is work in progress for I2C controller, not sure about touchpad
part: https://reviews.freebsd.org/D13654