linux-kernel - [PATCH v5 0/2] usb: serial: add support for CH348

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230106135338.643951-1-clabbe@baylibre.com>
Date:   Fri,  6 Jan 2023 13:53:36 +0000
From:   Corentin Labbe <clabbe@...libre.com>
To:     gregkh@...uxfoundation.org, johan@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        Corentin Labbe <clabbe@...libre.com>
Subject: [PATCH v5 0/2] usb: serial: add support for CH348

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

Changes since v3
- Fixed all reported problem from https://lore.kernel.org/lkml/Y5NDwEakGJbmB6+b@Red/T/#mb6234d0427cfdabf412190565e215995a41482dd
  Mostly reworked the endpoint mux to be the same than mx_uport

Changes since v4:
- The V4 was sent against stable and next have ch348_set_termios ktermios
  parameter const that I forgot to change


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  | 660 ++++++++++++++++++++++++++++++++++++
 4 files changed, 675 insertions(+)
 create mode 100644 drivers/usb/serial/ch348.c

-- 
2.38.2