On Sun, Feb 27, 2011 at 4:17 PM, hong zhang <[email protected]> wrote: > List, > > My TI SoC reference board lacks functionality of audio over HDMI but does > have video over HDMI. > > ALSA utility "aplay -l" does not display HDMI but does display codec device. > > I am wondering if hdmi audio is not registered. If yes, how to register it to > make hdmi audio device displayed by "aplay -l" > > Any help will be appreciated! >
To support audio over hdmi, you need to read back the hdmi edid extensions from the monitor to determine what it's audio capabilities are and then you need to generate the hdmi infoframe packets and mix the sound data into the hdmi data stream. You need hdmi hardware that is capable of generating the packets and mixing the audio stream. Alex > --henry > > > > _______________________________________________ > devel mailing list > [email protected] > http://driverdev.linuxdriverproject.org/mailman/listinfo/devel > _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
