585     char   cmd = CMD_QUIT;  in gps_state_done()  local
587     write( s->control[0], &cmd, 1 );  in gps_state_done()
603     char  cmd = CMD_START;  in gps_state_start()  local
606     do { ret=write( s->control[0], &cmd, 1 ); }  in gps_state_start()
618     char  cmd = CMD_STOP;  in gps_state_stop()  local
621     do { ret=write( s->control[0], &cmd, 1 ); }  in gps_state_stop()
703                     char  cmd = 255;  in gps_state_thread()  local
707                         ret = read( fd, &cmd, 1 );  in gps_state_thread()
710                     if (cmd == CMD_QUIT) {  in gps_state_thread()
714                     else if (cmd == CMD_START) {  in gps_state_thread()
721                     else if (cmd == CMD_STOP) {  in gps_state_thread()