Re: [PATCH v3 1/7] HID: asus: Fix up Zenbook Duo report descriptors

[Rebecca Mara Müller]

On Sun, Oct 18, 2026 at 05:50:08PM +0200, Denis Benato wrote:
> Does the zenbook duo really needs fixing the report descriptor? I think you can avoid this
> altogether on this hardware.

Welcome back, Denis. I tested exactly that on my UX8407AA today, docked
over USB: v3 built as an out-of-tree module against a 7.0.11-based
distribution kernel, once as posted and once with only the Zenbook Duo
fixup disabled (QUIRK_ZENBOOK_DUO_KEYBOARD removed from the fixup
condition, nothing else changed), my userspace workaround stopped.

Without the fixup, the hotkey interface gets no input device at all:

  asus 0003:0B05:1CD7.000A: hiddev2,hidraw8: USB HID v1.11 Device [...] on usb-0000:00:14.0-6/input4

With the fixup:

  asus 0003:0B05:1CD7.000A: Fixing up Zenbook Duo keyb report descriptor
  asus 0003:0B05:1CD7.000A: input,hiddev2,hidraw8: USB HID v1.11 Device [...] on usb-0000:00:14.0-6/input4

Without the fixup, volume up/down and mute still work, as they come from
another interface, but screen brightness, keyboard backlight, mic mute
and Fn+F profile cycling are dead (checked with an evdev reader and
/sys/firmware/acpi/platform_profile). With the fixup all of them work.
So yes, as far as I can tell this keyboard needs it.

On the Assisted-by format: my original patch (7/7) was written with
Claude Code using claude-fable-5, so following
Documentation/process/coding-assistants.rst that would be

Assisted-by: Claude:claude-fable-5

Paolo, feel free to use that above my Signed-off-by in a respin.

Thanks,
Rebecca