From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f45.google.com (mail-wm1-f45.google.com [209.85.128.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 28A462E6CCA for ; Thu, 16 Oct 2025 12:19:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.45 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760617160; cv=none; b=Q4b0OJgNWZO79EQcQ1iXTAKq91LlaIrets+IH5AilGgGq1dD+SiEFqUBX9a38MbSk6FAUyjob1QPfmR5XEt69DLXQp9I8uiHhTX7cDqa366+s9kXVMOpVUz6hARZ89eYe8y8P+mUjgq2jM8p6fQJo0OM1bHvl4xRx3wcx4ayWCs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760617160; c=relaxed/simple; bh=ERazTbvd1p5z4jUhhtD5MW9L9tTN1PZnkhOHBIhG8OE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=MPMHVVJ/hm6KlkTrckO+LPyREPeJrIGun0vKj8Gq0itltounrdeWPUFJBOKwLLHnKS+pRSQqac/3pGQCgMUNxEXCj60JXrEwqppk5w87a+3ltgI9472zqT+ZyVXElB1X7ic+oIpdJ/fHqdr+d7pfRSNINkYBCmms4x/7Iklu6rw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=MYFf4kev; arc=none smtp.client-ip=209.85.128.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="MYFf4kev" Received: by mail-wm1-f45.google.com with SMTP id 5b1f17b1804b1-46e2826d5c6so6129365e9.1 for ; Thu, 16 Oct 2025 05:19:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1760617155; x=1761221955; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=C1lRzBg6Y0DrujbaeCJgr3EEbAFrys3lR1v5Iou63/c=; b=MYFf4kevaweWweTBDipBhMpWBG/4MWy2hxjMbw63VzC0HeoqF6p2bXbOiEI2RVdvEJ F8pf/c2VlNeLYKo/ETItq//g71b3tLPhOkW4xt+RD7tWi3BKhqG/vi0yMnxu1o/naT/y 8MNJbhIowdDaz/Ww0taD9Ai0Ht9R/Ym8Va1bHX+DmLwcnT/kNDUWsTVRIUtAs6uyhAa3 e52jsNNwe/uIcKLXiee6adzn78fOTboxJq9cNKWl2kKhTLonCwBOO6lxD8KeVyTMJX4h WhXMv8mvv9Atoz9ZF3NVJSLNeuSSs1N5pav27vCZdHv+RyxJOK1yp7FZ9TF+EXtseGc8 NKLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760617155; x=1761221955; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=C1lRzBg6Y0DrujbaeCJgr3EEbAFrys3lR1v5Iou63/c=; b=T8HM0Ji4BfcJ6COSZnsntplM+dzKbzJCHUAWaML4Tr+6T148xy09YcbH24/P1nkCWL YjvekQPH/X6wSqV8ZOPC6qPG++ic7x6ipD8XPXodlZELForP/MgzSFwvCthJSTu15xDb 36cdbUOF+8Rba8fyDXS/vRCFQBxNBsSxmd80LMVXzMA+P31/lUEVhzP1KHWMfAh1nJTQ wquLAE2n+VWIutI2mbQ280JXtItrAyjqRJN1w2Fs/dmkt7UL1yQOEMoT+xqqvP7xGM+V 0HLfVQ09b0JiHsVTeaVGuUUjtqIjkoc9IZaI2tcRMPGcNBzB7gfdnaI9lBVWG9EzbOSM 27rQ== X-Forwarded-Encrypted: i=1; AJvYcCU56gSOgJG0q1WFLAcJOrv9XoCCKWp5/cOp4VXQHYz7ignnMZmgrzluRtEE1A8YOuK3HnZEia99yKh1XA==@vger.kernel.org X-Gm-Message-State: AOJu0YyxTX1s1f2IJw3fj9YJ8OT4+9ecIqCIC4h6WUouuEa8YxxP31Ut E7QbFag+w5q7ESYZseWDF3kgUJE5E39cFglooStY1cFjOQ0pghyAIHys X-Gm-Gg: ASbGncsP0qnLmv9XIOHv6qgbeL/uptFQhExysj70SoSarlcSuyYYMulN0u358mgi04o /OYVi7DweKvpEe5bjAFWC3+xjQn1DaU6cJg0iTmGO4enYABSpKw1U72eXF66K62pw2UfGY45Pg2 W7Wbk6ITf4fsPaPQOU2clMM+LzCIHQp35+odhe5CRmoePSdCdgGVkF2IzONPddKyQymPOHoQhah KTqhPtfEzv8O9QX+UrQQpMsI498ZeWf+htlQkP+RiaJGoHJDkjUJokKmhnLceJcChAp/KPr8VHN yBYdhYc3PUK97va89CT9E2uE+LdJ4KBE8rXbc86DNZYCP0olrv/Tm30eWZN58uJ3GlBaMpr90GE kIZrGRshWv69f5wKaeaxq8Tmtwo49wO/eFwfQ9+90s+OZ26+u+VXI/MYWL0Pz5c6i/7P3pmBFp4 yfVgf7sw9HpgiEfu1Ec5+1aTdu4j7s+/iH1qI= X-Google-Smtp-Source: AGHT+IE1N+/r0ZCrtxFyqBMS0KrH997fqnbg6jqIzxCgghAv0m+zk6mpZ6vW5N5cOzmVRywi6bH1Cw== X-Received: by 2002:a05:600c:c116:b0:46e:3709:d88a with SMTP id 5b1f17b1804b1-46fa9b17e16mr187399425e9.33.1760617155130; Thu, 16 Oct 2025 05:19:15 -0700 (PDT) Received: from [192.168.1.121] ([176.206.100.218]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-426ce582abcsm34383986f8f.17.2025.10.16.05.19.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 16 Oct 2025 05:19:14 -0700 (PDT) Message-ID: Date: Thu, 16 Oct 2025 14:19:14 +0200 Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 0/7] HID: asus: Fix ASUS ROG Laptop's Keyboard backlight handling To: Antheas Kapenekakis Cc: platform-driver-x86@vger.kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Jiri Kosina , Benjamin Tissoires , Corentin Chary , "Luke D . Jones" , Hans de Goede , =?UTF-8?Q?Ilpo_J=C3=A4rvinen?= References: <20251013201535.6737-1-lkml@antheas.dev> <160c3adf-9333-4486-ba4c-d3359ea73337@gmail.com> Content-Language: en-US, it-IT, en-US-large From: Denis Benato In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/16/25 14:14, Antheas Kapenekakis wrote: > On Thu, 16 Oct 2025 at 13:57, Denis Benato wrote: >> >> On 10/13/25 22:15, Antheas Kapenekakis wrote: >>> This is a two part series which does the following: >>> - Clean-up init sequence >>> - Unify backlight handling to happen under asus-wmi so that all Aura >>> devices have synced brightness controls and the backlight button works >>> properly when it is on a USB laptop keyboard instead of one w/ WMI. >>> >>> For more context, see cover letter of V1. Since V5, I removed some patches >>> to make this easier to merge. >>> >>> All comments with these patches had been addressed since V4. >> I have loaded this patchset for users of asus-linux project to try out. >> >> One of them opened a bug report about a kernel bug that happens >> consistently when closing the lid of his laptop [1]. >> >> He also sent another piece of kernel log, but didn't specify anything more >> about this [2]. >> >> [1] https://pastebin.com/akZx1w10 >> [2] https://pastebin.com/sKdczPgf > Can you provide a link to the bug report? [2] seems unrelated. The log in [2] was posted without additional context in the same discord message as [1]. I think I will tell the user to open a proper bug report because I do agree on the fact that it's looking unrelated. > As for [1], it looks like a trace that stems from a sysfs write to > brightness stemming from userspace that follows the same chain it > would on a stock kernel and times out. Is it present on a stock > kernel? I have asked more details to the user. The user is not online ATM so I will get to you with more details when I can. > Ilpo should know more about this, could the spinlock be interfering? > My testing on devices that have WMI led controls is a bit limited > unfortunately. However, most of our asus users have been happy with > this series for around half a year now. Unless they have looked to kernel logs they won't be able to tell since apparently there are no visible consequences. > Antheas > >>> --- >>> V5: https://lore.kernel.org/all/20250325184601.10990-1-lkml@antheas.dev/ >>> V4: https://lore.kernel.org/lkml/20250324210151.6042-1-lkml@antheas.dev/ >>> V3: https://lore.kernel.org/lkml/20250322102804.418000-1-lkml@antheas.dev/ >>> V2: https://lore.kernel.org/all/20250320220924.5023-1-lkml@antheas.dev/ >>> V1: https://lore.kernel.org/all/20250319191320.10092-1-lkml@antheas.dev/ >>> >>> Changes since V5: >>> - It's been a long time >>> - Remove addition of RGB as that had some comments I need to work on >>> - Remove folio patch (already merged) >>> - Remove legacy fix patch 11 from V4. There is a small chance that >>> without this patch, some old NKEY keyboards might not respond to >>> RGB commands according to Luke, but the kernel driver does not do >>> RGB currently. The 0x5d init is done by Armoury crate software in >>> Windows. If an issue is found, we can re-add it or just remove patches >>> 1/2 before merging. However, init could use the cleanup. >>> >>> Changes since V4: >>> - Fix KConfig (reported by kernel robot) >>> - Fix Ilpo's nits, if I missed anything lmk >>> >>> Changes since V3: >>> - Add initializer for 0x5d for old NKEY keyboards until it is verified >>> that it is not needed for their media keys to function. >>> - Cover init in asus-wmi with spinlock as per Hans >>> - If asus-wmi registers WMI handler with brightness, init the brightness >>> in USB Asus keyboards, per Hans. >>> - Change hid handler name to asus-UNIQ:rgb:peripheral to match led class >>> - Fix oops when unregistering asus-wmi by moving unregister outside of >>> the spin lock (but after the asus reference is set to null) >>> >>> Changes since V2: >>> - Check lazy init succeds in asus-wmi before setting register variable >>> - make explicit check in asus_hid_register_listener for listener existing >>> to avoid re-init >>> - rename asus_brt to asus_hid in most places and harmonize everything >>> - switch to a spinlock instead of a mutex to avoid kernel ooops >>> - fixup hid device quirks to avoid multiple RGB devices while still exposing >>> all input vendor devices. This includes moving rgb init to probe >>> instead of the input_configured callbacks. >>> - Remove fan key (during retest it appears to be 0xae that is already >>> supported by hid-asus) >>> - Never unregister asus::kbd_backlight while asus-wmi is active, as that >>> - removes fds from userspace and breaks backlight functionality. All >>> - current mainline drivers do not support backlight hotplugging, so most >>> userspace software (e.g., KDE, UPower) is built with that assumption. >>> For the Ally, since it disconnects its controller during sleep, this >>> caused the backlight slider to not work in KDE. >>> >>> Changes since V1: >>> - Add basic RGB support on hid-asus, (Z13/Ally) tested in KDE/Z13 >>> - Fix ifdef else having an invalid signature (reported by kernel robot) >>> - Restore input arguments to init and keyboard function so they can >>> be re-used for RGB controls. >>> - Remove Z13 delay (it did not work to fix the touchpad) and replace it >>> with a HID_GROUP_GENERIC quirk to allow hid-multitouch to load. Squash >>> keyboard rename into it. >>> - Unregister brightness listener before removing work queue to avoid >>> a race condition causing corruption >>> - Remove spurious mutex unlock in asus_brt_event >>> - Place mutex lock in kbd_led_set after LED_UNREGISTERING check to avoid >>> relocking the mutex and causing a deadlock when unregistering leds >>> - Add extra check during unregistering to avoid calling unregister when >>> no led device is registered. >>> - Temporarily HID_QUIRK_INPUT_PER_APP from the ROG endpoint as it causes >>> the driver to create 4 RGB handlers per device. I also suspect some >>> extra events sneak through (KDE had the @@@@@@). >>> >>> Antheas Kapenekakis (7): >>> HID: asus: refactor init sequence per spec >>> HID: asus: prevent binding to all HID devices on ROG >>> platform/x86: asus-wmi: Add support for multiple kbd RGB handlers >>> HID: asus: listen to the asus-wmi brightness device instead of >>> creating one >>> platform/x86: asus-wmi: remove unused keyboard backlight quirk >>> platform/x86: asus-wmi: add keyboard brightness event handler >>> HID: asus: add support for the asus-wmi brightness handler >>> >>> drivers/hid/hid-asus.c | 235 +++++++++++---------- >>> drivers/platform/x86/asus-wmi.c | 157 ++++++++++++-- >>> include/linux/platform_data/x86/asus-wmi.h | 69 +++--- >>> 3 files changed, 291 insertions(+), 170 deletions(-) >>> >>> >>> base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787