From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f182.google.com (mail-pf1-f182.google.com [209.85.210.182]) (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 3FEAC371D06 for ; Sun, 15 Mar 2026 22:05:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773612325; cv=none; b=IVV90CsWAcI6XYkEodOvkiPNhgK4hPTSOf/zfsmPA+J9ieFT1qX1825o0vobdUFihwknjMvy42YE5JhI60k4bmxO9ej7nBTAyVTkLRFK9Z1YoYhF+LY+uhuXVEM8iNFVcNPL8L8dHQ7ksReH6fasLyouUxbF57jXYSKSrzb+Tz8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773612325; c=relaxed/simple; bh=bZBxfwA1NimkSQAq/y3aPsbEAC8/epBcrQVOr03tp7g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=a7EwYpeMEOQSL7zxd3NTMSDgrQR+fQ7uUl8AEAbZDahyhTa3PLNcj3W5C2ijgRqFvwqDVcggPri46YLXjUH2JFs3UqQpVojIimRw//T440NKGiWCNi2yLrByA5J6HqYNN4GbMb2yUD8Nj1vJBfQimAeO0pa9g+3ccy6BNGDS1xE= 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=IJy7juCK; arc=none smtp.client-ip=209.85.210.182 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="IJy7juCK" Received: by mail-pf1-f182.google.com with SMTP id d2e1a72fcca58-82a124f3a5bso1869833b3a.0 for ; Sun, 15 Mar 2026 15:05:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1773612324; x=1774217124; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=yk7DOTVH/vkA/ojA43lMfr5wsv3F5j0GGAtjwoxCDsE=; b=IJy7juCKUmq21fCfRd9XbV7B4BCqKBTrogIOj574QYQuqeM4XO5oBNav9/ksAmkLNZ kDnuVTkHrJVUrCi0Ro+icb6vm565p8l8FCI1U7i//Cb7sgyYMWl6KzxQtB0od8c3Topz dsxANKEFFwMJ6YcU4pNqgLaikaj16asWVnUWRahORH9LmJGjPLKEKeb9xUagYYDaDo55 TKRWbmpNUFkaWsOEyUBRpX4H0M2s3GV17/OhaEY1Gu6i9afxPQCjADeoe3FKNKfpULqe sJV1slv0iHB+hHtDN6cCOofyRsNhEvrKDum7uT2xhgmHvqO7dEmKQW8pZFv3vC4kRVkM YwWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773612324; x=1774217124; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=yk7DOTVH/vkA/ojA43lMfr5wsv3F5j0GGAtjwoxCDsE=; b=qYq7crIk9DsugzCLR7uGzmzUBjHm7u3nJL7f1x2XET+iDXS2644smXTGekBMqdCrbz bugeAxs2fttTUPMJeyBV4Wk9gCpmUnB8e/qShPF7CQ2f7k6XqaUi+ff85hvsXEyODWBg bURJCFxCEI7tz0+iRPim5q89DygKHeE64kuwsW7XwCJMlJr860SCcJhhP0madQ7kvc8H 5VJgWs+Uen5LwVtlVPZn/NdCuS5iXG5rRQEQVvNhFzoM4pjtmdejCyQlTq/Op0YhJbN1 Xgp/6WEZlNvjn3juzQHqUvpz2peudzyxImn4+T2ursQX9rhhsFq2VmHsz8gqZI9v9xPH XOpg== X-Forwarded-Encrypted: i=1; AJvYcCXAttAKYqjINF/6PHFbRsbsmGnXneNcmuuH6vopvJlXDXqffvFuZYyvm1rciUhYekWSpxftu905Tmhw+E0=@vger.kernel.org X-Gm-Message-State: AOJu0Yx78XQqRYc88Gv82BInDXHKkBR6ho56EM9/YCd7LY1vOWPygyVA atALI7k9C0d+lXUtzPE5+I+Gtj8iEQZrd9TMf9wtUzUbD9svpYz3QJs= X-Gm-Gg: ATEYQzx2zZjiw0g/8aExuRjNBoqlJbW/hEpePx3P0Y8LsZdlvbLbqEgyLQcwmQ+BWYn tGWq7KiXS0K4xkvuNeOa3Tb4R4gB8ysiDKeVWIKBx1/8vIs2aws2ZbfqcgA2n1OVuosN987ug0u GP+Cj72cPZAB/2e4rtKg4Ia6+8ZXkiplE7ZpStt8QUAc/Zwk7p0OqBVlTfB465Wc9AyCqZBn6GZ jJYerDdXHHrxcV3LnJbe0oxfx1zjneVGC2FTeb2raQsrolmu4WMTArG6a+/uA3myHzWwv/YrIOP n4xCbksCyiy+P42+9yIFMgeDZvMwLJy1SgbiwW4mD56zgrNuMCyjawk7rsHC4gGApTqFKPOPtmp SDmHqlaOONR+vqOfABa42ZNGgfYKoaqXSQn4RydziZZY5KW12EyFSJ2a6+NE2vCNHVl1AgLH3BR +hR0h1e5vQ21Ws7L5s6p5He0ocjpr/3Ih9FHURKfh9PkelCJqL1zUqdZitXPRchLU= X-Received: by 2002:a05:6a00:7482:b0:827:2b3f:f9c5 with SMTP id d2e1a72fcca58-82a1992567fmr7437517b3a.60.1773612323597; Sun, 15 Mar 2026 15:05:23 -0700 (PDT) Received: from at-Standard-PC-Q35-ICH9-2009.. ([171.61.163.197]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82a0736590fsm11818838b3a.43.2026.03.15.15.05.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Mar 2026 15:05:23 -0700 (PDT) From: Atharva Tiwari To: lukas@wunner.de Cc: atharvatiwarilinuxdev@gmail.com, hansg@kernel.org, ilpo.jarvinen@linux.intel.com, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: Re: [PATCH v3] apple-gmux: preserve brightness using EFI Date: Mon, 16 Mar 2026 03:35:18 +0530 Message-ID: <20260315220518.24176-1-atharvatiwarilinuxdev@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > ... but /sys/class/backlight/gmux_backlight/brightness contains the > value 110400 (0x1af40), which obviously exceeds USHRT_MAX. So I'm not How did this even happen?, AFIK the brightness value uses gmux_get_brightness and that masks the value with 0xFFFF so this should be impossible?