From nobody Sat Feb 7 09:00:56 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EEF2FC00140 for ; Mon, 15 Aug 2022 20:07:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243454AbiHOUHU (ORCPT ); Mon, 15 Aug 2022 16:07:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345945AbiHOUFv (ORCPT ); Mon, 15 Aug 2022 16:05:51 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1612547B9B; Mon, 15 Aug 2022 11:54:57 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 623C6B810C5; Mon, 15 Aug 2022 18:54:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AE5FAC433D6; Mon, 15 Aug 2022 18:54:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660589693; bh=s9bXR2LcdQjUHgWzlKWD/cjyM09nvznL3+43Lz274b4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fFDSfh+B9SM9sx8Yvqqcl26oogsvqOKgNi/wIC+uscvWbShDEcPfUH4Z3F20wI1JZ dKfN93J4iWuonFa2pgvZevgIM9BC4d5NkxNRG7LVNqvFZjEMfiqllokNyMtZoN05Yg a7DlKyx8oPmlcDdN7bmr8rhnxJQSon1H8Zmmp5BU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Maximilian Luz , Jiri Kosina Subject: [PATCH 5.18 0019/1095] HID: hid-input: add Surface Go battery quirk Date: Mon, 15 Aug 2022 19:50:18 +0200 Message-Id: <20220815180430.139759532@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180429.240518113@linuxfoundation.org> References: <20220815180429.240518113@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Maximilian Luz commit db925d809011c37b246434fdce71209fc2e6c0c2 upstream. Similar to the Surface Go (1), the (Elantech) touchscreen/digitizer in the Surface Go 2 mistakenly reports the battery of the stylus. Instead of over the touchscreen device, battery information is provided via bluetooth and the touchscreen device reports an empty battery. Apply the HID_BATTERY_QUIRK_IGNORE quirk to ignore this battery and prevent the erroneous low battery warnings. Cc: stable@vger.kernel.org Signed-off-by: Maximilian Luz Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-input.c | 2 ++ 2 files changed, 3 insertions(+) --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -413,6 +413,7 @@ #define USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN 0x2544 #define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN 0x2706 #define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN 0x261A +#define I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREEN 0x2A1C =20 #define USB_VENDOR_ID_ELECOM 0x056e #define USB_DEVICE_ID_ELECOM_BM084 0x0061 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -381,6 +381,8 @@ static const struct hid_device_id hid_ba HID_BATTERY_QUIRK_IGNORE }, { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN= ), HID_BATTERY_QUIRK_IGNORE }, + { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREE= N), + HID_BATTERY_QUIRK_IGNORE }, {} };