rem: unsigned char* ecasound_fiommap_active_buffer(int fd) {
add: caddr_t ecasound_fiommap_active_buffer(int fd) {
context: unsigned char* ecasound_fiommap_active_buffer(int fd) {  return(ecasound_fiommap_buffermap[fd]->buffers[ecasound_fiommap_buffermap[fd]->locked_buffer]);}