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Tue, 18 Aug 2026 16:36:36 -0700 (PDT) Received: from server.roeck-us.net ([2600:1700:e321:62f0:da43:aeff:fecc:bfd5]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-327bf10a94dsm558957eec.15.2026.08.18.16.36.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Aug 2026 16:36:35 -0700 (PDT) Sender: Guenter Roeck Date: Tue, 18 Aug 2026 16:36:34 -0700 From: Guenter Roeck To: Nikita Dubrovskih Cc: linux-hwmon@vger.kernel.org, hansg@kernel.org, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4] hwmon: Add fan monitoring support for HONOR FMI-XX Message-ID: References: <20260812192242.859307-1-testname142@gmail.com> <20260813091411.1186193-1-testname142@gmail.com> <20260815232405.2107574-1-testname142@gmail.com> <20260815234041.2262291-1-testname142@gmail.com> Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260815234041.2262291-1-testname142@gmail.com> On Sun, Aug 16, 2026 at 02:40:41AM +0300, Nikita Dubrovskih wrote: > The HONOR FMI-XX firmware exposes a serialized \\GFNS ACPI method. > It returns a status byte and a 16-bit fan speed in RPM for either of two > firmware channels. > > Add a DMI-restricted, read-only hwmon driver using that firmware > interface. The driver deliberately exposes no fan control or direct > Embedded Controller access. > > The interface was validated on firmware 1.09 with fan channel 0 > reporting approximately 2500-2800 RPM. Channel 1 is readable and > remained at 0 RPM during idle and a short CPU load. > > Signed-off-by: Nikita Dubrovskih Queued for 7.4. Thanks, Guenter