6.1.2. Chipset with 8-channel support, single stream
ELD and PD information is not available on these chipsets.
In these chipsets, the multiple 2-channel converters are aggregated by the ALSA driver and exposed as a single 8-channel device. Some chipsets support 2, or 8 channels (MCP77). Other chipsets support 2, 6, or 8 channels (MCP79).
ftp://download. nvidia. com/XFree86/ gpu-hdmi- audio-document/ gpu-hdmi- audio.html
6.1.2. Chipset with 8-channel support, single stream
ELD and PD information is not available on these chipsets.
In these chipsets, the multiple 2-channel converters are aggregated by the ALSA driver and exposed as a single 8-channel device. Some chipsets support 2, or 8 channels (MCP77). Other chipsets support 2, 6, or 8 channels (MCP79).