From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EE559EAC7 for ; Sat, 6 Jun 2026 18:31:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780770686; cv=none; b=lbRJTRDTMd4OMFfz94r2Qjf7H6gcxPJhy/bt7s5Jwx6sJW9kexYzqSJnoCjQqwa666ptUIBJkKUjnu2pawq6dHatujkSzqSp77JmN5p5rolA6JrJ0436sqQHs7TLJiOqQteRBSpBVX1AkZwmasw6PcE1KKFD5DnnJzXMa85F2YE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780770686; c=relaxed/simple; bh=5d9jJy58JpJZBAJJVUI2Kxo+WD5xYXxCs5mdAXpX9B4=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=fofUNKHpCscELHRBAqD1+Go/Q5hYV/8xd3SwhOZGgomWIosgG8x9BNfqpAQrf2/ZvCPa1hw+KDg/xTYEkIYt9EVhU4sSr0zi7RJ2X2RWoRmiNnqFB2KR+/DK/DW6TasgfEBrnExG3PmkgTIX5JZBVC9umxHwdcL95Z1OYDkn9xg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EzceDLXA; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="EzceDLXA" Received: by smtp.kernel.org (Postfix) with ESMTPS id 95FF0C2BCB0 for ; Sat, 6 Jun 2026 18:31:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1780770685; bh=5d9jJy58JpJZBAJJVUI2Kxo+WD5xYXxCs5mdAXpX9B4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=EzceDLXAL0NmUHjEiU75MwvOq4uvyIEOEPvz8TKaqsRjNC+xSOOEDsjSqK1N4rRBr BcpJUx/377+x9HYK58vcLYV1IaqpCR5sa2aShF9izToOhrQauqpOpmd9YSeoqHGE/M K/N/HTXkDHt4lgVyWqcFLOrY0zta81BC1y8IUtx2kmrmK2uQORyTYbp6/sM1zQ/d8I nen2IUG95hJLIrSmEH28vV/7jLg2c1MzatH5UO2aWavu81DtA0Vpjg9/LwkdPn+z2K bsrVqy/9hVprNlRnAwmfx6XNIRIvJl7EWb5ZIVxSfhdBmlYunj6f+vVrrRjEMH0Tqb 5GjYEy00Qyp7A== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 7395BC41613; Sat, 6 Jun 2026 18:31:25 +0000 (UTC) From: bugzilla-daemon@kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 221583] Lenovo 82KU: keyboard backlight works via Fn+Space but no kbd_backlight LED device exposed Date: Sat, 06 Jun 2026 18:31:25 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_platform_x86@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Platform_x86 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: george.stafilidis@proton.me X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_platform_x86@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D221583 --- Comment #33 from George (george.stafilidis@proton.me) --- ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x05 [sudo] password for ultima:=20 ultima@fedora:~$ sudo busybox devmem 0xFE00D48A 8 0x54 ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x05 ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x05 ultima@fedora:~$ sudo busybox devmem 0xFE00D48A 8 0x55 ultima@fedora:~$=20 last command did set it to low ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x05 ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x05 ultima@fedora:~$=20 these did nothing ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x00 ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x05 ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x04 ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x05 ultima@fedora:~$ these also did nothing=20 ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x00 ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0xFF ultima@fedora:~$ sudo busybox devmem 0xFE00D42A 8 0x05 ultima@fedora:~$=20 also nothing here --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=