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The Aspeed AST2500 SoC contains a number of USB controllers: * USB 1.1 Host Controller * USB 2.0 Host Controller (x2) * USB 2.0 Virtual Hub * USB 2.0 Device Controller * USB 1.1 HID Controller The controllers are exposed via two USB ports with functionality muxed as required. The following table illustrates the relationships between the ports and the controllers via the mux function names: Port | USB Version | USB Mode | Mux Function ------|--------------|--------------|------------- A | 2.0 | Virtual Hub | USB2AD A | 2.0 | Host | USB2AH B | 1.1 | HID | USB11BHID B | 2.0 | Device | USB2BD B | 2.0 | Host | USB2BH Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.