Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Corentin Labbe <clabbe@baylibre.com>
To:     gregkh@linuxfoundation.org, johan@kernel.org
Cc:     linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
        Corentin Labbe <clabbe@baylibre.com>
Subject: [PATCH v3 0/2] usb: serial: add support for CH348
Date:   Mon, 14 Nov 2022 07:37:34 +0000
Message-Id: <20221114073736.672194-1-clabbe@baylibre.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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

Changes since v2:
- specify ch348_rxbuf data length
- Use correct speed_t dwDTERate instead of __le32
- test for maximum baud rate supported according to datasheet
- Use a define for CH348_TX_HDRSIZE

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  | 739 ++++++++++++++++++++++++++++++++++++
 4 files changed, 754 insertions(+)
 create mode 100644 drivers/usb/serial/ch348.c

-- 
2.37.4