forked from cerc-io/plugeth
48 lines
1.0 KiB
Go
48 lines
1.0 KiB
Go
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// 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 usb
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import (
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"fmt"
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)
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type BCD uint16
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const (
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USB_2_0 BCD = 0x0200
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USB_1_1 BCD = 0x0110
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USB_1_0 BCD = 0x0100
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)
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func (d BCD) Int() (i int) {
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ten := 1
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for o := uint(0); o < 4; o++ {
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n := ((0xF << (o * 4)) & d) >> (o * 4)
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i += int(n) * ten
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ten *= 10
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}
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return
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}
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func (d BCD) String() string {
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return fmt.Sprintf("%02x.%02x", int(d>>8), int(d&0xFF))
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}
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type ID uint16
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func (id ID) String() string {
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return fmt.Sprintf("%04x", int(id))
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}
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