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bfbc56cd9b
Color bar mode usage instructions:
Enable horizontal color bar:
echo 1 > /sys/kernel/debug/dri/0/video_port0/color_bar
Enable vertical color bar:
echo 2 > /sys/kernel/debug/dri/0/video_port0/color_bar
Enable horizontal color gradient:
echo 3 > /sys/kernel/debug/dri/0/video_port0/color_bar
Enable vertical color gradient:
echo 4 > /sys/kernel/debug/dri/0/video_port0/color_bar
Enable mutant color:
echo 5 > /sys/kernel/debug/dri/0/video_port0/color_bar
Enable fix black color:
echo 6 > /sys/kernel/debug/dri/0/video_port0/color_bar
Enable fix white color:
echo 7 > /sys/kernel/debug/dri/0/video_port0/color_bar
Disable color bar:
echo 0 > /sys/kernel/debug/dri/0/video_port0/color_bar
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Change-Id: I5b1c5b2daf90a009bef4a645bd7ba62503356ddf
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.