80 lines
2.9 KiB
Go
80 lines
2.9 KiB
Go
// 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 "fmt"
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// InterfaceInfo contains information about a USB interface, extracted from
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// the descriptor.
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type InterfaceInfo struct {
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// Number is the number of this interface, a zero-based index in the array
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// of interfaces supported by the device configuration.
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Number uint8
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// AltSettings is a list of alternate settings supported by the interface.
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AltSettings []InterfaceSetting
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}
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// String returns a human-readable descripton of the interface and it's
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// alternate settings.
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func (i InterfaceInfo) String() string {
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return fmt.Sprintf("Interface %d (%d alternate settings)", i.Number, len(i.AltSettings))
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}
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// InterfaceSetting contains information about a USB interface with a particular
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// alternate setting, extracted from the descriptor.
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type InterfaceSetting struct {
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// Number is the number of this interface, the same as in InterfaceInfo.
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Number uint8
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// Alternate is the number of this alternate setting.
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Alternate uint8
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// Class is the USB-IF class code, as defined by the USB spec.
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Class Class
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// SubClass is the USB-IF subclass code, as defined by the USB spec.
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SubClass Class
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// Protocol is USB protocol code, as defined by the USB spe.c
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Protocol Protocol
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// Endpoints has the list of endpoints available on this interface with
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// this alternate setting.
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Endpoints []EndpointInfo
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}
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// String returns a human-readable descripton of the particular
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// alternate setting of an interface.
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func (a InterfaceSetting) String() string {
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return fmt.Sprintf("Interface %d alternate setting %d", a.Number, a.Alternate)
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}
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// ConfigInfo contains the information about a USB device configuration.
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type ConfigInfo struct {
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// Config is the configuration number.
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Config uint8
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// SelfPowered is true if the device is powered externally, i.e. not
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// drawing power from the USB bus.
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SelfPowered bool
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// RemoteWakeup is true if the device supports remote wakeup.
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RemoteWakeup bool
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// MaxPower is the maximum current the device draws from the USB bus
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// in this configuration.
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MaxPower Milliamperes
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// Interfaces has a list of USB interfaces available in this configuration.
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Interfaces []InterfaceInfo
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}
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// String returns the human-readable description of the configuration.
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func (c ConfigInfo) String() string {
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return fmt.Sprintf("Config %d", c.Config)
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}
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