drvmod_dir
struct drvmod_dir *curdir = NULL;
moddir = (struct drvmod_dir *)calloc(1, sizeof (struct drvmod_dir));
moddir->next = (struct drvmod_dir *)
calloc(1, sizeof (struct drvmod_dir));
extern struct drvmod_dir *moddir;
struct drvmod_dir *next;
struct drvmod_dir *moddir;
struct drvmod_dir *walk_ptr;
struct drvmod_dir *free_ptr = moddir;