darth@athena.mit.edu (Darren T Garnier) (12/02/90)
I've just finished reading all 100 pages or so of the new sound
manager chapter, but I still have a few questions about it. I'm
interested in writing my own sound input driver (for my CEDAR Sound
board). I think, however, that there is not quite enough information
in the chapter to allow me to do this. Maybe someone who knows can answer
a few questions I have...
1) Can I assume that the sound input driver is just like any other device
driver with Prime, Open, Status, Read, Write, ... etc.
2) If so, I can see how data whould be passed back via the SoundParamBlock
disguised as an ordinary Paramblock, but this is just a guess.
3) This is my biggest question, How do the SPBGet and SPBSetDeviceInfo calls
interface to this device driver?
It seems to me that some documentation on how the sound manager communicates
with its device drivers would be useful to clear up these questions. Is this
covered in a different chapter of IM 6? Any suggestions on how to go about
writing a sound input device driver would be most appreciated. (I want my
microphone to show up under the sound cdev too. I even drew a little icon
for it already :-} ).
Thanks again.
Darren.
--
Darren Garnier
darth@athena.mit.edu | Some rise, some fall,
garnier@alcvax.pfc.mit.edu | some try to get to Terrapin.