ktr_genio
struct ktr_genio ktp;
buflen = len + sizeof(struct ktr_genio);
static void ktrgenio(struct ktr_genio *, size_t);
ktrgenio(struct ktr_genio *ktr, size_t len)
unsigned char *dp = (unsigned char *)ktr + sizeof(struct ktr_genio);
if (len < sizeof(struct ktr_genio))
datalen = len - sizeof(struct ktr_genio);