[alsa-devel] Help Adjusting HDA HDMI settings

[bencoxdev at gmail.com]

Hi Clemens,
            Thanks for the reply.

    The surround 5.1 is already decoded. So I am actually trying to send 6 channels of PCM sound, i.e.the 6 channels of surround 5.1, to the HDMI port and then on to the the display device (TV, monitor, projector etc.). The manufacture of the propriety box says it can do this. I have the source code of the manufactures 2 channel PCM driver and need pointers on how to alter it to send the six channels required.

    Unfortunately I can’t tell you much more about the propriety box as I’m under an NDA preventing me from doing so.

    Any help you could supply would be much appreciated, thanks.

Regards
Ben

From: Clemens Ladisch 
Sent: Friday, October 10, 2014 2:06 PM
To: bencoxdev at gmail.com ; ALSA Mailing list 
Subject: Re: [alsa-devel] Help Adjusting HDA HDMI settings
bencoxdev at gmail.com wrote:
> The hardware on the box I’m assured by the manufacturer is capable of
> surround 5.1 output on it’s HDMI port.

Where "surround 5.1" means Dolby Digital, i.e., compressed into two
channels (if the receiving device supports decoding it)?  And "hardware"
means "write the driver yourself"?  ;-)

Well, what hardware/driver is this?


Regards,
Clemens