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author | Péter Szilágyi <peterke@gmail.com> | 2017-01-20 00:25:11 +0800 |
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committer | Péter Szilágyi <peterke@gmail.com> | 2017-02-13 20:00:03 +0800 |
commit | 52bd4e29ff5c6a6f13ba163f24da96325f63683b (patch) | |
tree | de0f0da8ca9cf5508ea7401ee68f5b6b179ab296 /vendor/github.com/karalabe/gousb/usb/misc.go | |
parent | 833e4d1319336fbb66fd8f1e473c24472d65b17b (diff) | |
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vendor: pull in support for USB devices via libusb/gousb
Diffstat (limited to 'vendor/github.com/karalabe/gousb/usb/misc.go')
-rw-r--r-- | vendor/github.com/karalabe/gousb/usb/misc.go | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/vendor/github.com/karalabe/gousb/usb/misc.go b/vendor/github.com/karalabe/gousb/usb/misc.go new file mode 100644 index 000000000..6e25431bf --- /dev/null +++ b/vendor/github.com/karalabe/gousb/usb/misc.go @@ -0,0 +1,47 @@ +// Copyright 2013 Google Inc. 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" +) + +type BCD uint16 + +const ( + USB_2_0 BCD = 0x0200 + USB_1_1 BCD = 0x0110 + USB_1_0 BCD = 0x0100 +) + +func (d BCD) Int() (i int) { + ten := 1 + for o := uint(0); o < 4; o++ { + n := ((0xF << (o * 4)) & d) >> (o * 4) + i += int(n) * ten + ten *= 10 + } + return +} + +func (d BCD) String() string { + return fmt.Sprintf("%02x.%02x", int(d>>8), int(d&0xFF)) +} + +type ID uint16 + +func (id ID) String() string { + return fmt.Sprintf("%04x", int(id)) +} |