PTMX_MINOR 249 fs/devpts/inode.c BUG_ON(pts_inode->i_rdev == MKDEV(TTYAUX_MAJOR, PTMX_MINOR)); PTMX_MINOR 261 fs/devpts/inode.c BUG_ON(inode->i_rdev == MKDEV(TTYAUX_MAJOR, PTMX_MINOR));