hdspm_ltc         117 include/uapi/sound/hdspm.h #define SNDRV_HDSPM_IOCTL_GET_LTC _IOR('H', 0x46, struct hdspm_ltc)
hdspm_ltc        6170 sound/pci/rme9652/hdspm.c 	struct hdspm_ltc ltc;