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Marc Zyngier
5295020388
commit14ae24cba2upstream. The CH343 USB/serial adapter is as buggy as it is popular (very). One of its quirks is that despite being capable of signalling a BREAK condition, it doesn't advertise it. This used to work nonetheless until66aad7d8d3("usb: cdc-acm: return correct error code on unsupported break") applied some reasonable restrictions, preventing breaks from being emitted on devices that do not advertise CAP_BRK. Add a quirk for this particular device, so that breaks can still be produced on some of my machines attached to my console server. Fixes:66aad7d8d3("usb: cdc-acm: return correct error code on unsupported break") Signed-off-by: Marc Zyngier <maz@kernel.org> Cc: stable <stable@kernel.org> Cc: Oliver Neukum <oneukum@suse.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Oliver Neukum <oneukum@suse.com> Link: https://patch.msgid.link/20260301124440.1192752-1-maz@kernel.org 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.