From patchwork Fri Oct 21 13:37:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Corentin Labbe X-Patchwork-Id: 617642 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 644AEC433FE for ; Fri, 21 Oct 2022 13:38:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230453AbiJUNiK (ORCPT ); Fri, 21 Oct 2022 09:38:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229961AbiJUNiI (ORCPT ); Fri, 21 Oct 2022 09:38:08 -0400 Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 721FB275198 for ; Fri, 21 Oct 2022 06:38:06 -0700 (PDT) Received: by mail-wr1-x42b.google.com with SMTP id b4so4940948wrs.1 for ; Fri, 21 Oct 2022 06:38:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=UbUGLzx95uGCyDlhKABUDk0TwFKBK1rRFm9Lq1bvWhQ=; b=Cztud/XNPRfILkeYrDGH7fD8D/44agAxp7x2SuaOpkBbOzEm6vowqmYgkH9gRN8SqA KXTP5EooRHITXkNczVUXmVGX0rB4DmcteoTH3TdIMK8RcY6G5bkyXWnMb7ADnVLkmeq8 N9XNz2l2tmiwNlyFHz1FFxVKOmYSTeMLrtGqs7TwTEchbAJ/rVmxqMqt1cU1PLrNx6rN T3lM6BneGF/FoKJuZUXw5qP5M/o9Vj5O8xiT4NThcFernyw0cj5aha9bvCprmpFEslc3 61ye4j09ZLyS5AvzUaOqtFHAPWq8qMvP94x5xP8n/73306oLNumKYfgG64lbRXcUWSGZ FkPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=UbUGLzx95uGCyDlhKABUDk0TwFKBK1rRFm9Lq1bvWhQ=; b=DiFaFFiETwCqs2XSa2kWD6DfYZgNyxwGp5mdeZVoiwf17fPYBCw5xpnRq5bQlj9YdV rJFkIOVW5+5uDuglgGSRTT2yiWvjBEx8UoIZ46ontj7h20kFaHDB0Ls5v06bcB7jx425 a/UCBnWc2syuqJ7dXjtmZ5OTbmH5WL7LvxxI9ei5veA4U4b2vqXVljo9tBHBTe68ja7m xW7bpV7uYsgqq10mAWb5gKZ/HIKE7YmHKoGoP5RWzMoPb6vuo+fft9KIQxpE00Dd1OYr ehf7g6cNt1YJk5JyABe4h2JOhKYgnDk2BtFb8lG8EZlj4h2jOVbca+JycVI+tZgs7Rrn qO3Q== X-Gm-Message-State: ACrzQf2xGqdVg/wzl7wPG0Kpg9fw/RqcXRBzxp1vPxH73Qo9cp89mTJo DWcIV0QwTWJ6pQpKD/xAyXpv6A== X-Google-Smtp-Source: AMsMyM7qEGEFybZQ/s1vwsv5EnaCGOXvocUhKwgK8vrYIiDHjtFPPAIasFVplw2SF1mw3CbgefYa2w== X-Received: by 2002:a5d:42c7:0:b0:236:4ddd:3576 with SMTP id t7-20020a5d42c7000000b002364ddd3576mr4144203wrr.289.1666359485075; Fri, 21 Oct 2022 06:38:05 -0700 (PDT) Received: from localhost.localdomain (laubervilliers-658-1-213-31.w90-63.abo.wanadoo.fr. [90.63.244.31]) by smtp.googlemail.com with ESMTPSA id l35-20020a05600c1d2300b003b477532e66sm10462313wms.2.2022.10.21.06.38.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Oct 2022 06:38:04 -0700 (PDT) From: Corentin Labbe To: gregkh@linuxfoundation.org, johan@kernel.org Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, neil.armstrong@linaro.org, Corentin Labbe Subject: [PATCH v2 0/2] usb: serial: add support for CH348 Date: Fri, 21 Oct 2022 13:37:56 +0000 Message-Id: <20221021133758.1881904-1-clabbe@baylibre.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hello The CH348 is an octo serial to USB adapter. The following patch adds a driver for supporting it. Since there is no public datasheet, unfortunatly it remains some magic values. It was tested with a large range of baud from 1200 to 1500000 and used with success in one of our kernel CI testlab. Regards Changes since v1: - use a data structure for encoding/decoding messages. - check if needed endpoints exists - fix URB leak in ch348_allocate_status_read error case - test for maximum baud rate as stated by datasheet Corentin Labbe (2): usb: serial: add support for CH348 usb: serial: add myself as maintainer of CH348 MAINTAINERS | 5 + drivers/usb/serial/Kconfig | 9 + drivers/usb/serial/Makefile | 1 + drivers/usb/serial/ch348.c | 738 ++++++++++++++++++++++++++++++++++++ 4 files changed, 753 insertions(+) create mode 100644 drivers/usb/serial/ch348.c