cec の Physical and Logical addresses を把握しておこう

All CEC devices have both a physical and logical address.
The physical address is allocated though an algorithm described in the HDMI specification.
Whenever a new physical address is discovered, a CEC device shall allocate its logical address and report the association between its logical and physical addresses by broadcasting the information on the bus.

Within HDMI-CEC, devices are of two kinds, TVs and switches inputs (named sinks) and playback device, recording device, switch outputs ... (named sources).
By definition of the HDMI specification, there is only one TV or display within a CEC bus.

Only one TV is supposed to be part of the bus (with the physical address 0.0.0.0).

参照:
http://wiki.kwikwai.com/index.php?title=The_HDMI-CEC_bus
2015-06-09 : Work-Product-Spec : コメント : 0 : トラックバック : 0
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