[FEATURE] Include usbhid fix for ASUS ROG N-Key dropped/repeated keystrokes

[spinualexandru]

Pre-flight checklist

• I have searched existing issues/PRs and this has not been requested before.
• I have read the Contributing Guidelines.

Request type

• New patch / patchset inclusion
• Kernel config change (enable/disable option)
• New kernel variant
• Scheduler tuning / addition
• Compiler / LTO / PGO optimization
• Security hardening
• Driver or hardware enablement
• Other

Summary

Hey,

Lately I've been having issues with keys randomly getting stuck for a while on my Asus ROG Strix SCAR 16 ( tried in multiple OS setups, never happens in BIOS or )

I found the following linux patch which fixes the issue(I tested it by using an OS where it's patched in(Nobara and G14 kernel, didnt test in OGC)): HID: usbhid: skip interrupt IN polling for devices with no input reports

The patch as far as I see prevents usbhid from starting interrupt-IN polling when the HID interface declares no input reports. ( which matches that it happens after I stop typing for a while ). On keyboards with the affected(because it doesn't happen to all) ASUS ROG N-Key, polling the input-less RGB/control interface can cause the sibling kb interface to drop reports... which then causes missed, repeated or stuck keys.

Motivation / use case

What would happen is that on my ASUS ROG Strix SCAR 16, I keep having random missed/repeated/stuck keystrokes across different apps (no particular key, app, game or desktop env)

The ASUS N-Key keyboard exposes two interfaces:

• Interface 00 which is the actual keyboard/input interface
• Interface 01 which is an input-less interface used for RGB/control functionality

When I use things that use SDL or steam input or any hardware controll util really, it opens the second hidraw node... which then the current usbhid implementation starts unnecessary interrupt-IN polling.

I see it affects multiple users:
https://discuss.cachyos.org/t/keyboard-input-issues-on-asus-rog-strix-16-2025-with-cachyos-during-gaming/30823/8
https://www.reddit.com/r/cachyos/comments/1tt2884/keyboard_misses_keystrokes_or_repeats_them_while/
ublue-os/bazzite#4590
https://www.reddit.com/r/hardware/comments/1rvqfzr/asus_rog_laptops_ship_with_pcisig_specification/
ublue-os/bazzite#2970

A lost key-down appears as a missed character where as a key-up appears as a repeating or stuck key. ( Which made me think it's completely random )

Patch / upstream reference (if available)

Patch v2:

https://lkml.iu.edu/2608.3/09647.html

Patch-series cover letter:

https://lkml.iu.edu/2608.3/09648.html

The patch fixes the regression introduced/exposed by:

torvalds/linux@4ac74ea68f64

It has already been included downstream by OpenGamingCollective:

OpenGamingCollective/linux#62

According to the v2 cover letter,it was solved on:

• OGC kernel since 7.1.3-ogc5
• Nobara kernel since 7.1.4
• G14 kernel since 7.1.4

Testing / benchmarks

• Laptop: ASUS ROG Strix SCAR 16 G634JYR
• BIOS: G634JYR.322
• Current kernel: 7.2.2-1-cachyos
• Keyboard: ASUSTek N-Key Device
• USB ID: 0b05:19b6
• Keyboard interface: /dev/hidraw0, USB interface 00
• Input-less RGB/control interface: /dev/hidraw1, USB interface 01

Observations:

• Random keys are missed
• Key releases are sometimes missed, resulting in repetition/stuck keys
• Happens across unrelated apps rather than in one specific app
• Happens on a vanilla setup as well ( I main Hyprland but also happens in Sway and Niri )

I look at the cachy's usbhid_open() implementation (https://github.com/CachyOS/linux/blob/cachyos-7.2.2-1/drivers/hid/usbhid/hid-core.c#L682) and it doesn't have the proposed list_empty(&hid->report_enum[HID_INPUT_REPORT].report_list) check

Additional context

My G634JYR model is not explicitely named in the pach v2 letter... which lists the newer models like G615L/G635L/G815L/G835. However... my laptop exposes the same affected ASUS-N-Key device(0b05:19b6) and the same two-interface layout: one keyboard interface plus one input-less RGB/control interface.

Related reports:

• CachyOS discussion:
  https://discuss.cachyos.org/t/keyboard-input-issues-on-asus-rog-strix-16-2025-with-cachyos-during-gaming/30823

• Bazzite issue #4590:
  Keyboard is dropping keyboard strokes on ASUS ROG Strix G16 during RTS Gameplay ublue-os/bazzite#4590

• Bazzite issue #2970:
  Built-in keyboard issues on ROG Strix SCAR 18 ublue-os/bazzite#2970

Could we have this targeted HID fix which is already in multiple kernels rather than waiting for it to propagate thru the upstream stable?