diff options
| -rw-r--r-- | arduino-serial-lib.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arduino-serial-lib.c b/arduino-serial-lib.c index d9dbe91..39461ce 100644 --- a/arduino-serial-lib.c +++ b/arduino-serial-lib.c @@ -128,6 +128,7 @@ int serialport_read_until(int fd, char* buf, char until, int buf_max, int timeou if( n==0 ) { usleep( 1 * 1000 ); // wait 1 msec try again timeout--; + if( timeout==0 ) return -2; continue; } #ifdef SERIALPORTDEBUG |