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ce514dadc6
this driver relies on exposing a char device to userspace to tx messages. Every message can be sent using different trasmitter settings such so the tx_cfg must be written before sending any messages. Failing to do so will cause the message to fail silently depending on printk/dynamic_debug settings which makes it hard to troubleshoot. This patch add a control variable that will get initialized once tx_cfg is set for the fd used when interacting with the char device. Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com> Link: https://lore.kernel.org/r/20220114221643.GA7843@mail.google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 Restructured Text 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.