from fx_api.h:1600
UINT _fxe_media_open(FX_MEDIA *media_ptr,
CHAR *media_name,
VOID (*media_driver)(FX_MEDIA *),
VOID *driver_info_ptr,
VOID *memory_ptr,
ULONG memory_size,
UINT media_control_block_size);
Implemented in fxe_media_open.c:89