On Aug 01 2016 or thereabouts, Jean Delvare wrote:

On Thu, 28 Jul 2016 11:44:57 +0200, Benjamin Tissoires wrote:

quoted

On Jul 18 2016 or thereabouts, Jean Delvare wrote:

quoted

On Fri, 24 Jun 2016 16:39:49 +0200, Benjamin Tissoires wrote:

quoted

The i801 chip can handle the Host Notify feature since ICH 3 as mentioned
in http://www.intel.com/content/dam/doc/datasheet/82801ca-io-controller-hub-3-datasheet.pdf

Enable the functionality unconditionally and propagate the alert
on each notification.

With a T440s and a Synaptics touchpad that implements Host Notify, the
payload data is always 0x0000, so I am not sure if the device actually
sends the payload or if there is a problem regarding the implementation.

Out of curiosity, does it work on at least one machine?

I have tested the T440, t450 and t460 (3 different generation of Intel
processor), and none seems to be working. The Synaptics touchpad used is
mostly the same, so maybe that's a device issue.

May I ask why you are pushing the code upstream then, if it has no
known (working) user?

K. Then I guess I'll just have to remove these reads from the driver.

Cheers,
Benjamin