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Chapter 5 Supported Commands
This section describes the message transfer and additional details for a number of
common features enabled by CEC. Note that where a feature is supported, all
messages within that feature should be implemented.
5.1
Limitations
Firmware Limitations:
●
We cannot guarantee that commands will be processed if sent at intervals less
than 240ms.
●
After calling the bootloader, the device needs to be reset. The device also needs
to be reset after uploaded the DFU file to the device, after which the firmware
device will be operational.
●
It is necessary to disconnect ST-Link before using CEC-Client or Kodi.
●
Suspend from Kodi is not supported, because TV changes its address to a non-
zero number after resume. If this happens, the TV needs to be turned off and
turned back on to assign itself a proper address.
libCEC Limitations:
●
Some features in libCEC have not been implemented by different brands and/or
are not consistently supported across models. The following table highlights some
limitations. The list is not final and may vary to support as many vendors as
possible.
●
Since there is no physical address detection, libCEC will only work on HDMI port 1
●
KodI is only supported with libCEC4.04.1
The tables on the following page detail support limitations. Fields marked with "-" may
work but have not been verified.
CEC Client Installation
29
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