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Add serdev_device_write() a blocking call allowing to transfer arbitraty amount of data (potentially exceeding amount that serdev_device_write_buf can process in a single call) To support that, also add serdev_device_write_wakeup(). Drivers wanting to use full extent of serdev_device_write functionality are expected to provide serdev_device_write_wakeup() as a sole handler of .write_wakeup event or call it as a part of driver's custom .write_wakeup code. Because serdev_device_write() subroutine is a superset of serdev_device_write_buf() the patch re-impelements latter is terms of the former. For drivers wanting to just use serdev_device_write_buf() .write_wakeup handler is optional. Cc: cphealy@gmail.com Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-serial@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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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.