Fix serialization of SAP in DataHeader

6 years ago · d782d04296
parent f4fff47365
commit d782d04296
1 changed files with 1 additions and 1 deletions
--- a/dataheader.go
+++ b/dataheader.go
@ -222,7 +222,7 @@ func (h *DataHeader) Bytes() ([]byte, error) {
 	if h.HeaderCompression {
 		data[0] |= B00100000
 	}
-	data[1] = (h.ServiceAccessPoint & B00001111)
+	data[1] = (h.ServiceAccessPoint << 4) & B11110000
 	data[2] = uint8(h.DstID >> 16)
 	data[3] = uint8(h.DstID >> 8)
 	data[4] = uint8(h.DstID)