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