diff --git a/rw.go b/rw.go
new file mode 100644
index 0000000..18d5460
--- /dev/null
+++ b/rw.go
@@ -0,0 +1,101 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2014 Henry
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+package goSam
+
+import (
+	"encoding/hex"
+	"io"
+	"log"
+)
+
+/*
+Copy of testing/iotest Read- and WriteLogger, but using %q instead of %x for printing
+*/
+
+type writeLogger struct {
+	prefix string
+	w      io.Writer
+}
+
+func (l *writeLogger) Write(p []byte) (n int, err error) {
+	n, err = l.w.Write(p)
+	if err != nil {
+		log.Printf("%s %q: %v", l.prefix, string(p[0:n]), err)
+	} else {
+		log.Printf("%s %q", l.prefix, string(p[0:n]))
+	}
+	return
+}
+
+// NewWriteLogger returns a writer that behaves like w except
+// that it logs (using log.Printf) each write to standard error,
+// printing the prefix and the hexadecimal data written.
+func NewWriteLogger(prefix string, w io.Writer) io.Writer {
+	return &writeLogger{prefix, w}
+}
+
+type readLogger struct {
+	prefix string
+	r      io.Reader
+}
+
+func (l *readLogger) Read(p []byte) (n int, err error) {
+	n, err = l.r.Read(p)
+	if err != nil {
+		log.Printf("%s %q: %v", l.prefix, string(p[0:n]), err)
+	} else {
+		log.Printf("%s %q", l.prefix, string(p[0:n]))
+	}
+	return
+}
+
+// NewReadLogger returns a reader that behaves like r except
+// that it logs (using log.Print) each read to standard error,
+// printing the prefix and the hexadecimal data written.
+func NewReadLogger(prefix string, r io.Reader) io.Reader {
+	return &readLogger{prefix, r}
+}
+
+type readHexLogger struct {
+	prefix string
+	r      io.Reader
+}
+
+func (l *readHexLogger) Read(p []byte) (n int, err error) {
+	n, err = l.r.Read(p)
+	if err != nil {
+		log.Printf("%s (%d bytes) Error: %v", l.prefix, n, err)
+	} else {
+		log.Printf("%s (%d bytes)", l.prefix, n)
+	}
+	log.Print("\n" + hex.Dump(p[:n]))
+	return
+}
+
+// NewReadHexLogger returns a reader that behaves like r except
+// that it logs to stderr using ecoding/hex.
+func NewReadHexLogger(prefix string, r io.Reader) io.Reader {
+	return &readHexLogger{prefix, r}
+}