0a55187a1e
The gadget documentation doesn't state clearly whether a gadget driver's ->disconnect() callback should be invoked when the D+ pullup is turned off. Some UDC drivers do this and some don't. This patch settles the issue by making the core function usb_gadget_disconnect() issue the callback, so that UDC drivers don't need to worry about it. A description of the new behavior is added to the function's kerneldoc. Also, the patch removes a few superseded callbacks from other core routines. Future patches will remove the ->disconnect() calls from the UDC drivers that make them, as they are now unnecessary. Until all those patches are merged gadget drivers may receive extra ->disconnect() callbacks, but this should be harmless. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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.
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.