Messages in this thread | | | Date | Thu, 17 Aug 2023 01:34:35 +0200 | Subject | Re: [PATCH v6 0/2] usb: serial: add support for CH348 | From | David Heidelberg <> |
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Hello Johan,
Any chance to get CH348 into 6.5?
I want to highlight that from all serials I have around this is the only one which support 1500000 baud (needed for Rockchip devices).
Thank you! David
On 28/06/2023 15:38, Corentin Labbe wrote: > 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 > > Changes since v5: > - Fixed all reported problem from https://lore.kernel.org/lkml/20230106135338.643951-1-clabbe@baylibre.com/T/#m044aab24dfb652ea34aa06f8ef704da9d6a2e036 > - Major change is dropping of all status handling which was unused. > It will be probably necessary to bring it back when using GPIO. > This will be done when I will finish my next devboard. > > 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 | 491 ++++++++++++++++++++++++++++++++++++ > 4 files changed, 506 insertions(+) > create mode 100644 drivers/usb/serial/ch348.c > -- David Heidelberg Certified Linux Magician
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