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// Copyright 2013 Google Inc. All rights reserved.
// Copyright 2016 the gousb Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package usb
import (
"fmt"
)
// #include "./libusb/libusb/libusb.h"
import "C"
// rawError is an error code from libusb.
type rawError C.int
// Error implements the error interface.
func (e rawError) Error() string {
return fmt.Sprintf("libusb: %s [code %d]", rawErrorString[e], e)
}
// fromRawErrno converts a raw libusb error into a Go type.
func fromRawErrno(errno C.int) error {
err := rawError(errno)
if err == errSuccess {
return nil
}
return err
}
const (
errSuccess rawError = C.LIBUSB_SUCCESS
errIO rawError = C.LIBUSB_ERROR_IO
errInvalidParam rawError = C.LIBUSB_ERROR_INVALID_PARAM
errAccess rawError = C.LIBUSB_ERROR_ACCESS
errNoDevice rawError = C.LIBUSB_ERROR_NO_DEVICE
errNotFound rawError = C.LIBUSB_ERROR_NOT_FOUND
errBusy rawError = C.LIBUSB_ERROR_BUSY
errTimeout rawError = C.LIBUSB_ERROR_TIMEOUT
errOverflow rawError = C.LIBUSB_ERROR_OVERFLOW
errPipe rawError = C.LIBUSB_ERROR_PIPE
errInterrupted rawError = C.LIBUSB_ERROR_INTERRUPTED
errNoMem rawError = C.LIBUSB_ERROR_NO_MEM
errNotSupported rawError = C.LIBUSB_ERROR_NOT_SUPPORTED
errOther rawError = C.LIBUSB_ERROR_OTHER
)
var rawErrorString = map[rawError]string{
errSuccess: "success",
errIO: "i/o error",
errInvalidParam: "invalid param",
errAccess: "bad access",
errNoDevice: "no device",
errNotFound: "not found",
errBusy: "device or resource busy",
errTimeout: "timeout",
errOverflow: "overflow",
errPipe: "pipe error",
errInterrupted: "interrupted",
errNoMem: "out of memory",
errNotSupported: "not supported",
errOther: "unknown error",
}