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The Mecer Xtreme Mini S6 features a wireless module, based on a Realtek 8723BS, which provides WLAN and Bluetooth connectivity via SDIO and UART interfaces respectively. Define a simple MMC power sequence that declares the GPIO pins connected to the module's WLAN Disable and Bluetooth Disable pins as active low reset signals, because both signals must be deasserted for WLAN radio operation. Configure the host's SDIO interface for High Speed mode with 1.8v I/O signalling and IRQ detection over a 4-bit wide bus. Signed-off-by: Justin Swartz <justin.swartz@risingedge.co.za> Link: https://lore.kernel.org/r/20200406135006.23759-1-justin.swartz@risingedge.co.za Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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.