Where to put code for a new ioctl.

[James Courtier-Dutton <James@superbug.co.uk>]

I am looking at alsa-lib.
./src/control/control_hw.c is there the actual ioctl call goes.
./src/control/control.c calls the routine in control_hw.c
./src/control/hcontrol.c calls the routine in control.c
./src/mixer/simple_none.c handles the call from the user app, it then 
calls ??? hcontrol.c or control.c ?

So, my question is, if I have to write code between the user apps 
request and the ioctl. The purpose of the code is to take the request 
from the user, and then encapsulate it in the ioctl specific format, and 
then call the ioctl. Do I implement this encapsulating code in control.c 
or hcontrol.c ?

James


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