71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
// Copyright 2013 Google Inc. 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 usbid
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import (
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"log"
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"net/http"
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"strings"
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"github.com/kylelemons/gousb/usb"
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)
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const (
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// LinuxUsbDotOrg is one source of files in the format used by this package.
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LinuxUsbDotOrg = "http://www.linux-usb.org/usb.ids"
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)
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var (
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// Vendors stores the vendor and product ID mappings.
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Vendors map[usb.ID]*Vendor
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// Classes stores the class, subclass and protocol mappings.
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Classes map[uint8]*Class
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)
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// LoadFromURL replaces the built-in vendor and class mappings with ones loaded
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// from the given URL.
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//
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// This should usually only be necessary if the mappings in the library are
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// stale. The contents of this file as of February 2012 are embedded in the
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// library itself.
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func LoadFromURL(url string) error {
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resp, err := http.Get(url)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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ids, cls, err := ParseIDs(resp.Body)
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if err != nil {
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return err
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}
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Vendors = ids
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Classes = cls
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return nil
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}
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func init() {
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ids, cls, err := ParseIDs(strings.NewReader(usbIdListData))
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if err != nil {
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log.Printf("usbid: failed to parse: %s", err)
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return
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}
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Vendors = ids
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Classes = cls
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}
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