Messages in this thread | | | From | Corentin Labbe <> | Subject | [PATCH v5 0/2] usb: serial: add support for CH348 | Date | Fri, 6 Jan 2023 13:53:36 +0000 |
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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
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