http://bugs.winehq.org/show_bug.cgi?id=35224
--- Comment #23 from Luke A. Guest laguest@archeia.com --- So, it looks like the code is getting to here in winealsa.drv/mmdevdrv.c (AudioClient_Initialize):
FIXME("EXCLUSIVE mode with EVENTCALLBACK\n"); return AUDCLNT_E_DEVICE_IN_USE;