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Tue, 19 Aug 2025 09:29:53 -0700 (PDT) Received: from DESKTOP-P76LG1N.lan ([42.116.199.205]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-245ed379e92sm1632755ad.65.2025.08.19.09.29.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Aug 2025 09:29:52 -0700 (PDT) From: Nam Tran To: rdunlap@infradead.org Cc: lee@kernel.org, pavel@kernel.org, gregkh@linuxfoundation.org, christophe.jaillet@wanadoo.fr, krzk+dt@kernel.org, robh@kernel.org, conor+dt@kernel.org, corbet@lwn.net, linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH v13 RESEND 3/4] docs: ABI: Document LP5812 LED sysfs interfaces Date: Tue, 19 Aug 2025 23:29:45 +0700 Message-Id: <20250819162945.231085-1-trannamatk@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <1075a908-23d0-4a9e-97d2-cb68d1d6b675@infradead.org> References: <1075a908-23d0-4a9e-97d2-cb68d1d6b675@infradead.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Sun, 17 Aug 2025, Randy Dunlap wrote: > > +What: /sys/class/leds/led_/lod_lsd > > +Date: July 2025 > > +KernelVersion: 6.17 > > +Contact: Nam Tran > > +Description: > > + 0 0 mean no lod and lsd fault detected, 1 1 mean lod and lsd fault detected (RO) > > At first the "0 0" and "1 1" confused me (thought it was a typo), > but I think what you are showing here is a sysfs file with 2 values, right? > That used to be discouraged (or even nacked), although I don't know the > current policy on that. The lod_lsd sysfs file currently reports two values: the first value is the LOD (LED open detection) fault status, the first value is the LOD (LED open detection) fault status. I followed this approach to keep the two related fault bits in a single file, but I'm open to splitting them into separate sysfs entries if that is preferred. Best regards, Nam Tran