From patchwork Thu Mar 2 13:01:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastien Nocera X-Patchwork-Id: 13157297 X-Patchwork-Delegate: jikos@jikos.cz 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 6F525C678D4 for ; Thu, 2 Mar 2023 13:01:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229728AbjCBNB1 (ORCPT ); Thu, 2 Mar 2023 08:01:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60570 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229504AbjCBNB0 (ORCPT ); Thu, 2 Mar 2023 08:01:26 -0500 Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 103493251E; Thu, 2 Mar 2023 05:01:24 -0800 (PST) Received: (Authenticated sender: hadess@hadess.net) by mail.gandi.net (Postfix) with ESMTPSA id C954C20011; Thu, 2 Mar 2023 13:01:20 +0000 (UTC) From: Bastien Nocera To: linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jiri Kosina , Benjamin Tissoires , "Peter F . Patel-Schneider" , =?utf-8?q?Filipe_La?= =?utf-8?q?=C3=ADns?= , Nestor Lopez Casado Subject: [PATCH 2/2] HID: logitech-hidpp: Reconcile USB and Unifying serials Date: Thu, 2 Mar 2023 14:01:17 +0100 Message-Id: <20230302130117.3975-2-hadess@hadess.net> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230302130117.3975-1-hadess@hadess.net> References: <20230302130117.3975-1-hadess@hadess.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Now that USB HID++ devices can gather a serial number that matches the one that would be gathered when connected through a Unifying receiver, remove the last difference by dropping the product ID as devices usually have different product IDs when connected through USB or Unifying. For example, on the serials on a G903 wired/wireless mouse: - Unifying before patch: 4067-e8-ce-cd-45 - USB before patch: c086-e8-ce-cd-45 - Unifying and USB after patch: e8-ce-cd-45 Signed-off-by: Bastien Nocera --- drivers/hid/hid-logitech-hidpp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 99ce2c49facc..0cda1d07641f 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -875,8 +875,7 @@ static int hidpp_unifying_init(struct hidpp_device *hidpp) if (ret) return ret; - snprintf(hdev->uniq, sizeof(hdev->uniq), "%04x-%4phD", - hdev->product, &serial); + snprintf(hdev->uniq, sizeof(hdev->uniq), "%4phD", &serial); dbg_hid("HID++ Unifying: Got serial: %s\n", hdev->uniq); name = hidpp_unifying_get_name(hidpp); @@ -1011,8 +1010,7 @@ static int hidpp_serial_init(struct hidpp_device *hidpp) if (ret) return ret; - snprintf(hdev->uniq, sizeof(hdev->uniq), "%04x-%4phD", - hdev->product, &serial); + snprintf(hdev->uniq, sizeof(hdev->uniq), "%4phD", &serial); dbg_hid("HID++ DeviceInformation: Got serial: %s\n", hdev->uniq); return 0;