From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from e3i605.smtp2go.com (e3i605.smtp2go.com [158.120.86.93]) (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 60B6C392C29 for ; Fri, 4 Sep 2026 02:44:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=158.120.86.93 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788489863; cv=none; b=Kv0If2dq5Trdc3bgpnzlHk8Et3rbNL/86Qa2GsAgawJqIs6G1m3Gfrswia3p7/ADoRxbCi8A0GpVO/uWBIg41C9TT0e2NsmiSRCrTdadu2VYMuT/XmchznNlJQOHmZG3xAb18eIjkqXxaQo2tuo6lM7xqxVmKrIZ7z84eYCgzh0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788489863; c=relaxed/simple; bh=HdmRsQ0oWz0pzPHVEpRH/Owyu2ppe304S5oRqL5q5R8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=M4QXL4w2CLQqqQQBAUVpXrsDcUKSW78QgWulZBZzD1nTIJvTVgAAKgVbt6ExrQnt+3EnPpNGXQQI+guTyqF/Gv++Bxpeqr5sa/RYTdu9wRP3tcf7vOcxlEMlKgYjPNKl5+03CXcrQjHo4Cdm6TKIMFCif4AP9ZK51l1cCFNELUc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ait.place; spf=pass smtp.mailfrom=em943033.ait.place; dkim=pass (2048-bit key) header.d=ait.place header.i=@ait.place header.b=ZZnWX9Ck; arc=none smtp.client-ip=158.120.86.93 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ait.place Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=em943033.ait.place Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ait.place header.i=@ait.place header.b="ZZnWX9Ck" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ait.place; i=@ait.place; q=dns/txt; s=s943033; t=1788488951; h=from : subject : to : message-id : date : list-unsubscribe : list-unsubscribe-post; bh=xXZlOcCTr+E0XNy1fQaeGQiQCz9QBsCdB1zl9NIC7A8=; b=ZZnWX9CkluW5GVn1INP0so8SlfenB026DltV8c0njTBUEY5NeNIzK3E1gagq4Bw6cInli 2mPYp50tmn8bnM1fZIQknBIduNQVVyl283R/v6ojZtG/na2SSfVz295JSiQwi/PdRETv5Rp HOq4PujFQMeobo90qSU6zAcmInfGTJ6RpVe/7v+18DD6YcD7jMIbHSniLbsZHTGJNBpSInO Fn+K1VuuvYJILCMjnuksx4l7/yJjtuu4bahyeSS33LhddXSSBkKDU2Ww9GUoTw5PB6eTAqp Wpicw8QlXA5YidK3agJhU8vTnzFWaBaJZS/ADXdlt4G40iY/Ktsw1QJNnsQg== Received: from [10.191.245.51] (helo=omarchy.bb.online.no) by smtpcorp.com with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.99.4) (envelope-from ) id 1x2Jfv-FnQW0hPnlyJ-nLce; Fri, 04 Sep 2026 02:29:07 +0000 From: ait To: ait@ait.place Cc: Jonathan Jansen , Jiri Kosina , Benjamin Tissoires , Dmitry Torokhov , linux-input@vger.kernel.org, linux-api@vger.kernel.org, Your Name Subject: [PATCH] HID: input: map System Microphone Mute LED Date: Fri, 4 Sep 2026 04:29:03 +0200 Message-ID: <20260904022903.607880-1-ait@ait.place> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-api@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Report-Abuse: Please forward a copy of this message, including all headers, to Feedback-ID: 943033m:943033ayMjrpg:943033ssDv2ghnHS X-smtpcorp-track: VrFwr5v8VAki.LxPoUAbh7-OI.IrCvHgR8jtM From: Jonathan Jansen HUTRR110 (approved 2022, part of HID Usage Tables since v1.4) defines: Generic Desktop (0x01) 0xa9 System Microphone Mute OOC (input) LED Page (0x08) 0x57 System Microphone Mute OOC (output) The input usage already maps to KEY_MICMUTE, so the button works on HUTRR110 devices. The LED output usage is ignored, though, so the indicator stays dark and userspace depends on per-vendor hacks (hid-lenovo, hid-lg-g15, hid-playstation, hid-plantronics) or platform drivers instead. Map LED page usage 0x57 to a new LED_MICMUTE input LED. It shows up as /sys/class/leds/inputN::micmute with the "audio-micmute" trigger that snd-ctl-led registers, so the LED tracks the audio stack's system-wide microphone mute state, like the existing "Mute" (LED page 0x09) mapping does for speaker mute. LED_MICMUTE takes the next free input LED code (0x0b, below LED_MAX 0x0f), so nothing existing breaks. Link: https://www.usb.org/sites/default/files/hutrr110-systemmicrophonemute.pdf Cc: Jiri Kosina Cc: Benjamin Tissoires Cc: Dmitry Torokhov Cc: linux-input@vger.kernel.org Cc: linux-api@vger.kernel.org Signed-off-by: Your Name --- drivers/hid/hid-debug.c | 2 +- drivers/hid/hid-input.c | 1 + drivers/input/input-leds.c | 1 + include/uapi/linux/input-event-codes.h | 1 + 4 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c index f44e6e708..92a950105 100644 --- a/drivers/hid/hid-debug.c +++ b/drivers/hid/hid-debug.c @@ -3550,7 +3550,7 @@ static const char *leds[LED_MAX + 1] = { [LED_KANA] = "Kana", [LED_SLEEP] = "Sleep", [LED_SUSPEND] = "Suspend", [LED_MUTE] = "Mute", [LED_MISC] = "Misc", [LED_MAIL] = "Mail", - [LED_CHARGING] = "Charging", + [LED_CHARGING] = "Charging", [LED_MICMUTE] = "Mic Mute", }; static const char *repeats[REP_MAX + 1] = { diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index edd6bbf83..727374dd5 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -990,6 +990,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */ case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */ case 0x09: map_led (LED_MUTE); break; /* "Mute" */ + case 0x57: map_led (LED_MICMUTE); break; /* "System Microphone Mute" */ case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */ case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */ case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */ diff --git a/drivers/input/input-leds.c b/drivers/input/input-leds.c index b08d1d08d..6522079a4 100644 --- a/drivers/input/input-leds.c +++ b/drivers/input/input-leds.c @@ -36,6 +36,7 @@ static const struct { [LED_SLEEP] = { "sleep" } , [LED_SUSPEND] = { "suspend" }, [LED_MUTE] = { "mute", AUDIO_TRIGGER("audio-mute") }, + [LED_MICMUTE] = { "micmute", AUDIO_TRIGGER("audio-micmute") }, [LED_MISC] = { "misc" }, [LED_MAIL] = { "mail" }, [LED_CHARGING] = { "charging" }, diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h index 3528168f7..bc374821c 100644 --- a/include/uapi/linux/input-event-codes.h +++ b/include/uapi/linux/input-event-codes.h @@ -983,6 +983,7 @@ #define LED_MISC 0x08 #define LED_MAIL 0x09 #define LED_CHARGING 0x0a +#define LED_MICMUTE 0x0b #define LED_MAX 0x0f #define LED_CNT (LED_MAX+1) -- 2.51.0