41 // different magic number.
65     int magic;  member
74     int magic;  member
80     int magic;  member
160             if (wp->magic == WRITEPORT_MAGIC_X)  in port_create()
178     wp->magic = WRITEPORT_MAGIC_W;  in port_create()
210     rp->magic = READPORT_MAGIC;  in port_open()
287     pg->magic = PORTGROUP_MAGIC;  in port_group()
296         if ((rp->magic != READPORT_MAGIC) || rp->gport) {  in port_group()
326     if (pg->magic != PORTGROUP_MAGIC)  in port_group_add()
330     if (rp->magic != READPORT_MAGIC || rp->gport)  in port_group_add()
361     if (pg->magic != PORTGROUP_MAGIC)  in port_group_remove()
365     if (rp->magic != READPORT_MAGIC || rp->gport != pg)  in port_group_remove()
395     if (wp->magic != WRITEPORT_MAGIC_W) {  in port_write()
468     if (rp->magic == READPORT_MAGIC) {  in port_read()
471     } else if (rp->magic == PORTGROUP_MAGIC) {  in port_read()
504     if (wp->magic != WRITEPORT_MAGIC_X) {  in port_destroy()
529     wp->magic = 0;  in port_destroy()
546     if (rp->magic == READPORT_MAGIC) {  in port_close()
564         rp->magic = 0;  in port_close()
566     } else if (rp->magic == PORTGROUP_MAGIC) {  in port_close()
576         pg->magic = 0;  in port_close()
578     } else if (rp->magic == WRITEPORT_MAGIC_W) {  in port_close()
582         wp->magic = WRITEPORT_MAGIC_X;  in port_close()