[oi-dev] diagnose touchpad

[John Howard]

Is USB legacy support mode enabled in the firmware of the new notebook?
I suspect PS/2 port is not being emulated.  Just a thought.

On 10:06AM, Wed, Feb 16, 2022 Stephan Althaus <
Stephan.Althaus at duedinghausen.eu wrote:

> Hello!
>
> I am looking for hints to diagnose the builtin touchpad.
>
> It should work on the device node  /dev/kdmouse  and the old PS/2 driver
> mouse8042
>
> On an older laptop (HP Elitebook 2530p) with OI 2021.10 booted from usb,
> the following dtrace script shows "fbt::mouse8042_intr" events:
>
> fbt::mouse8042_intr:return,
> fbt::mouse8042_process_msg:return
> {
>      printf("%s returned %d \n", probefunc, arg1);
> }
>
> on the newer laptop (Dell Precision 7720) there are no events..
>
>
> What can i do to dig deeper ?
>
>
> Any hints are welcome!
>
> Stephan
>
>
>
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