Re: [9fans] VT6306 chip is for OHCI or UHCI?

[Sape Mullender <sape@plan9.bell-labs.com>]

> Thanks Sape for your kind comment.

Well, I'm glad there are people out there helping with Plan 9.  Thank YOU.

> This time, my case is at now, however, related to the number of
> channels, 8 (7.1) for this case, but hard coded as 2 in the source.
> After solving this, I may touch the problem you encountered.

Yep, in theory you can have mutiple input and multiple output audio streams.
I never went there; it's hard enough as it is.  FIguring out from the descriptors how
a device is configured is pure AI.  (proof below in what you just discovered :-)

> By the way, I learned somewhat so far:
>
>>desc 1.0 [12] 0x24: 1.1: Audio Input Terminal Descriptor
>>	bTerminalId 4, wTerminalType 0x201 (<unnamed>), bAssocTerminal >0 bNrChannels 2, wChannelConfig 3, iChannelNames 0 iTerminal 0
>>Device can record from <unnamed>
>
> This 0x201 must be microphone.

Very possible.  I'll look in the standards docs tomorrow to see if I can find what
0x201 and 0x605 mean (probably they're undefined -- I must have typed the names
in for the ones that were defined).

>>desc 1.0 [12] 0x24: 1.1: Audio Input Terminal Descriptor
>>	bTerminalId 5, wTerminalType 0x605 (<unnamed>), bAssocTerminal >0 bNrChannels 2, wChannelConfig 3, iChannelNames 0 iTerminal 0
>>Device can record from <unnamed>
>
> This 0x605 may be S/PDIF...  This device has S/PDIF input and output for
> light connectors.   Unfortunately, this device has no CD input connector,
> which may make me to forget internal DVD drive of the desk top?

Your device also has a mixer (if I remember a previous message correctly)
This may take a number of inputs or outputs and connect them together.

	Sape