Re: Tips for diagnosing ghost arrow key presses with USB keyboard?

[Tobias Geerinckx-Rice]

David,

David Wilson 写道：
> There doesn't seem to be any clear trigger that causes this 
> issue so I'm having trouble making further progress in fixing 
> it. Anyone know of any other tricks I could try to diagnose or 
> alleviate the problem? If you have a good resource for poking 
> around with kernel drivers, I'd be willing to go that route to 
> see if it's a legitimate bug in the kernel.

I don't know which kernel driver (HCI or input) you suspect and 
can't be of much help with their design, but I have had some 
success using usbmon[0] to sniff the wire.  It's available in 
Guix.

What kind of keyboard is this?

Linux provides some support for ‘special’ devices under:

 -> Device Drivers
   -> HID support
     -> HID bus support
       -> Special HID drivers

For example:

 CONFIG_HID_APPLE:
 Support for some Apple devices which less or more break
 HID specification.
 Say Y here if you want support for keyboards of Apple iBooks,
 PowerBooks, MacBooks, MacBook Pros and Apple Aluminum.

That seems to describe yours if it's not simply broken :-)

Looks like most/all of these specific modules are built by Guix, 
but maybe not loaded?

Hoping to have been of some service,

T G-R

[0]: https://www.kernel.org/doc/html/latest/usb/usbmon.html

signature.asc
Description: PGP signature