sysref_class
sysref_init(struct sysref *sr, struct sysref_class *srclass)
sysref_alloc(struct sysref_class *srclass)
struct sysref_class *srclass = privdata;
struct sysref_class *srclass = privdata;
struct sysref_class *srclass; /* type of resource and API */
void sysref_init(struct sysref *sr, struct sysref_class *);
void *sysref_alloc(struct sysref_class *class);
static struct sysref_class cdev_sysref_class = {