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[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 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747305115239240182?= X-GMAIL-MSGID: =?utf-8?q?1747305115239240182?= 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