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First, write hdcp key by "ProvisioningTool" if you want to
enable hdcp function, or else will auth fail.
To check whether the hdcp is enable or not
#cat /sys/class/misc/hdmi_hdcp1x/enable
0:hdcp is disabled
1:hdcp is enabled, hdmi screen will be pink if it is failed;
2:hdcp is enabled, hdmi screen will be normal if it is failed;
Enable or disable hdcp function
#echo 0 > /sys/class/misc/hdmi_hdcp1x/enable
#echo 1 > /sys/class/misc/hdmi_hdcp1x/enable
#echo 2 > /sys/class/misc/hdmi_hdcp1x/enable
Get the status of hdcp
#cat /sys/class/misc/hdmi_hdcp1x/status
The result will be one of the follow list:
hdcp disable;
hdcp_auth_start
hdcp_auth_success;
hdcp_auth_fail;
unknown status.
Change-Id: Iac6c7d6a1196ce9cf2869d7916bbe6c8941ec13b
Signed-off-by: Huicong Xu <xhc@rock-chips.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.