scrmap_t
fwrite(&scrmap, sizeof(scrmap_t), 1, fd);
scrmap_t *sm = (scrmap_t *)data;
#define GIO_SCRNMAP _IOR('k', 2, scrmap_t)
#define PIO_SCRNMAP _IOW('k', 3, scrmap_t)
#define GIO_SCRNMAP _IOR('k', 2, scrmap_t)
#define PIO_SCRNMAP _IOW('k', 3, scrmap_t)
scrmap_t scrnmap;
scrmap_t scrnmap;