William Wu 124b7feb0e usb: gadget: uvc: allow zero bytesused for rockchip uvc
For rockchip platforms, the userspace uvc application use
bytesused == 0 as a way to indicate that the data is all
zero and unused. In that case, the uvc driver should use
the allow_zero_bytesused flag to keep bytesused 0 rather
than use the buf actual size instead. This can help to
preview 1080P@MJPG faster.

Change-Id: Ic4d561f18e85d759b5a2405db4f6fb48533e1781
Signed-off-by: William Wu <william.wu@rock-chips.com>
2020-06-19 16:27:12 +08:00
2020-03-03 07:33:01 +01:00
2020-06-09 22:19:16 +08:00
2020-03-03 07:33:01 +01:00

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.
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