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ab9a30d6fe
The KEBA UART is found in the system FPGA of KEBA PLC devices. It is mostly 8250 compatible with extension for some UART modes. 3 different variants exist. The simpliest variant supports only RS-232 and is used for debug interfaces. The next variant supports only RS-485 and is used mostly for communication with KEBA panel devices. The third variant is able to support RS-232, RS-485 and RS-422. For this variant not only the mode of the UART is configured, also the physics and transceivers are switched according to the mode. Signed-off-by: Gerhard Engleder <eg@keba.com> Tested-by: Daniel Gierlinger <gida@keba.com> Reviewed-by: Lukas Wunner <lukas@wunner.de> Link: https://patch.msgid.link/20251023151229.11774-3-gerhard@engleder-embedded.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
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| Kbuild | ||
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| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.