_BSDOS_IOR         41 compat/bsdos/bsdos_ioctl.h #define BSDOS_SNDCTL_DSP_GETOSPACE	_BSDOS_IOR('P', 12, struct bsdos_audio_buf_info)
_BSDOS_IOR         42 compat/bsdos/bsdos_ioctl.h #define BSDOS_SNDCTL_DSP_GETISPACE	_BSDOS_IOR('P', 13, struct bsdos_audio_buf_info)