alauda_info
struct alauda_info *info = (struct alauda_info *) extra;
struct alauda_info *info;
us->extra = kzalloc_obj(struct alauda_info, GFP_NOIO);
info = (struct alauda_info *) us->extra;
struct alauda_info *info = (struct alauda_info *) us->extra;
#define MEDIA_INFO(us) ((struct alauda_info *)us->extra)->port[MEDIA_PORT(us)]
struct alauda_info *info = (struct alauda_info *) us->extra;
struct alauda_info *info = (struct alauda_info *) us->extra;