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([20.89.137.63]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3b0fc2775adsm95281a91.2.2026.11.06.07.05.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Nov 2026 07:05:29 -0800 (PST) Message-ID: <78f9211c-3673-4c64-a1ce-8ea56ee13ae3@gmail.com> Date: Fri, 6 Nov 2026 23:05:23 +0800 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] platform/x86: bitland-mifs-wmi: Only expose kb_mode when it is supported From: Mingyou Chen To: Bozhen Peng , Anton Karasev Cc: Hans de Goede , Ilpo Jarvinen , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, W_Armin@gmx.de, ilya.gladyshev@linux.dev, chris@miget.com, kento@kekto.ru, wolf109909@outlook.com, vlku.milos.fun@gmail.com, btx342@gmail.com, zsanya322@gmail.com, i@rsplwe.com, martiya.ar@gmail.com, nika@nikableh.moe References: <20261008-bitland-kb-mode-v1-uselessfire@gmail.com> Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 11/6/26 23:03, Mingyou Chen wrote: > On 10/18/26 11:03, Bozhen Peng wrote: >> Hi Anton, >> >> I tested your patch as posted on my MECHREVO WUJIE15 PRO >> (WUJIE15 Series-HPT), using your stated for-next base: >> >> 98f039265e580291d5e76a11b2072541fbb1c393 >> >> I booted the baseline and then the same kernel with only your patch >> applied. On the baseline, kb_mode was present, but reading it returned >> "Input/output error". With your patch, kb_mode was absent and I got: >> >>    kb_mode not supported (-5), hiding it >> >> The GET produces an ACPI AE_NOT_FOUND for HEC.LEDM on this machine. >> With your patch, the probe still reports the ACPI error, >> but kb_mode is correctly hidden. >> >> I cycled the keyboard backlight with Fn+F7 from off through levels >> 1, 2 and 3, then back to off. All levels worked. During this check, >> atkbd logged unknown scancode 0xf6 messages. >> >> This confirms the unsupported-kb_mode case on HPT. My keyboard backlight >> is not RGB, so I didn't tested the supported RGB-mode case. >> >> Tested-by: Bozhen Peng >> >> Thanks, >> Bozhen > > Hi, > > Sorry for the late reply. > > Attrs are not covered in this patch series. > > I might start a new patch series for this after the currently one is > merged. Sorry about that, I replied to the wrong thread. Please ignore this Email.