ivtv_ioctl_codec  103 extra_lib/include/avcap/linux/ivtv.h #define IVTV_IOC_G_CODEC           _IOR ('@', 48, struct ivtv_ioctl_codec)
ivtv_ioctl_codec  104 extra_lib/include/avcap/linux/ivtv.h #define IVTV_IOC_S_CODEC           _IOW ('@', 49, struct ivtv_ioctl_codec)