Moved USB enumerations subroutines in their own package

enumerator/enumerator.go

@@ -0,0 +1,41 @@
+//
+// Copyright 2014-2017 Cristian Maglie. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+//
+
+package enumerator // import "go.bug.st/serial.v1/enumerator"
+
+// PortDetails contains detailed information about USB serial port.
+// Use GetDetailedPortsList function to retrieve it.
+type PortDetails struct {
+	Name         string
+	IsUSB        bool
+	VID          string
+	PID          string
+	SerialNumber string
+
+	// Manufacturer string
+	// Product      string
+}
+
+// GetDetailedPortsList retrieve ports details like USB VID/PID.
+// Please note that this function may not be available on all OS:
+// in that case a FunctionNotImplemented error is returned.
+func GetDetailedPortsList() ([]*PortDetails, error) {
+	return nativeGetDetailedPortsList()
+}
+
+// PortEnumerationError is the error type for serial ports enumeration
+type PortEnumerationError struct {
+	causedBy error
+}
+
+// Error returns the complete error code with details on the cause of the error
+func (e PortEnumerationError) Error() string {
+	reason := "Error while enumerating serial ports"
+	if e.causedBy != nil {
+		reason += ": " + e.causedBy.Error()
+	}
+	return reason
+}