X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=serialport.c;h=4f42740a2388fe398034f13722e3aaaa9f4f2121;hb=59182fbbbf79b31552f84f875485bfaee1a34270;hp=d4371400d5fa46a388ab66061a920fed6448d9d2;hpb=276ef1b92fe0a885c4e2156feeefb29ad67fc0c4;p=libserialport.git

diff --git a/serialport.c b/serialport.c
index d437140..4f42740 100644
--- a/serialport.c
+++ b/serialport.c
@@ -618,11 +618,11 @@ SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers)
 		RETURN_FAIL("PurgeComm() failed");
 #else
 	int flags = 0;
-	if (buffers & SP_BUF_BOTH)
+	if (buffers == SP_BUF_BOTH)
 		flags = TCIOFLUSH;
-	else if (buffers & SP_BUF_INPUT)
+	else if (buffers == SP_BUF_INPUT)
 		flags = TCIFLUSH;
-	else if (buffers & SP_BUF_OUTPUT)
+	else if (buffers == SP_BUF_OUTPUT)
 		flags = TCOFLUSH;
 
 	/* Returns 0 upon success, -1 upon failure. */