From: Herbert Poetzl <herbert@13thfloor.at>
To: u-boot@lists.denx.de
Subject: Serial console via USB (USBTTY) ...
Date: Thu, 1 Apr 2021 13:19:49 +0200 [thread overview]
Message-ID: <20210401111949.GO14419@MAIL.13thfloor.at> (raw)
I'm trying to get a serial console via USB working on
STM32MP1 but I'm encountering some problems there ...
The u-boot README suggests to add the following config
entries to the board specific .h file:
CONFIG_USB_DEVICE
CONFIG_USB_TTY
CONFIG_USBD_HS (for high speed support)
CONFIG_SYS_CONSOLE_IS_IN_ENV
... but when doing so, I get a number of linker errors
which suggest that there is something missing:
https://pastebin.com/raw/bbpCu8jy
Marek (via IRC) suggested that this is because the
USB_TTY seems to be based on the old gadget framework
and needs to be updated to the new one.
It was also suggested that a port of the Linux serial
function driver would be a good alternative to get
CDC/ACM functionality into u-boot and that Andy might
already be working on this ...
So my questions are:
- What is currently the best/easiest approach to
get a serial console via USB working?
- Is the port from Linux in a stage that it can
be tested and/or finalized within a easonable
amount of time?
- Can I help getting this working?
Thanks in advance,
Herbert
next reply other threads:[~2021-04-01 11:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 11:19 Herbert Poetzl [this message]
2021-04-01 13:10 ` Serial console via USB (USBTTY) Andy Shevchenko
2021-04-01 16:17 ` Herbert Poetzl
2021-04-01 16:36 ` Andy Shevchenko
2021-04-01 18:45 ` Herbert Poetzl
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