diff --git a/rtl8720dn/rpc_util.go b/rtl8720dn/rpc_util.go
index 5d59754..5850e01 100644
--- a/rtl8720dn/rpc_util.go
+++ b/rtl8720dn/rpc_util.go
@@ -81,7 +81,6 @@ func (r *RTL8720DN) readThread() {
 
 		length := uint16(readBuf[0]) + uint16(readBuf[1])<<8
 		crc := uint16(readBuf[2]) + uint16(readBuf[3])<<8
-		//fmt.Printf("len %d (%X) crc %04X\r\n", length, length, crc)
 
 		n, _ = io.ReadFull(r.port, payload[:length])
 		if r.debug {
@@ -91,7 +90,6 @@ func (r *RTL8720DN) readThread() {
 		}
 
 		n = int(length)
-		//fmt.Printf("rx : %2d : %s\n", n, dumpHex(payload[:n]))
 
 		crcNew := computeCRC16(payload[:n])
 		if g, e := crcNew, crc; g != e {
diff --git a/rtl8720dn/tmp.go b/rtl8720dn/tmp.go
index fd32078..bd53892 100644
--- a/rtl8720dn/tmp.go
+++ b/rtl8720dn/tmp.go
@@ -1,6 +1,6 @@
 package rtl8720dn
 
-// TODO: 後で整理する
+// TODO: Implement these when needed
 // https://github.com/Seeed-Studio/seeed-ambd-firmware/blob/master/erpc_idl/erpc_shim/rpc_system_header.h
 
 type RPC_T_GAP_CAUSE int32