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The Testbox board is an open hardware enhancement for the Lamobo R1 router board. The Testbox board is used in the CI-RT project to manage devices under test (https://ci-rt.linutronix.de). The hardware project is located at https://github.com/ci-rt/testbox-shield The Testbox v2 expands the Lamobo R1 router board with - a power supply, - a CAN bus PHY, - a power control, - a relay, - an I2C EEPROM, - a secure key storage (ATECC608a) and - two RS232 compliant serial ports. Co-developed-by: Benedikt Spranger <b.spranger@linutronix.de> Signed-off-by: Benedikt Spranger <b.spranger@linutronix.de> Signed-off-by: Bastian Germann <bage@linutronix.de> [Maxime: Removed unused pinctrl node] Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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.