X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fserial.c;h=7f1f1eeaa2651360194231cfc5793fd4ad40141f;hb=d643e6bc3942d7b7149a53b3091034d64eac0ad3;hp=fe39effc604f10119dcc822d4b0281557697115a;hpb=cb828f1b3e00ccd0ad23d7cb98dca4d0d4749b07;p=libsigrok.git

diff --git a/src/serial.c b/src/serial.c
index fe39effc..7f1f1eea 100644
--- a/src/serial.c
+++ b/src/serial.c
@@ -128,7 +128,18 @@ SR_PRIV int serial_open(struct sr_serial_dev_inst *serial, int flags)
 			return ret;
 	}
 
-	return serial_flush(serial);
+	/*
+	 * Flush potentially dangling RX data. Availability of the
+	 * flush primitive depends on the transport/cable, absense
+	 * is non-fatal.
+	 */
+	ret = serial_flush(serial);
+	if (ret == SR_ERR_NA)
+		ret = SR_OK;
+	if (ret != SR_OK)
+		return ret;
+
+	return SR_OK;
 }
 
 /**