in_photon         898 lib/tty/key.c      static int in_photon = 0;
in_photon         922 lib/tty/key.c      if (in_photon == 0)
in_photon         925 lib/tty/key.c          in_photon = -1;
in_photon         943 lib/tty/key.c                      in_photon = 1;
in_photon         949 lib/tty/key.c      if (in_photon == -1)