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USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR

構造体
サイズx64: 10 バイト / x86: 10 バイトパッキング1

サイズ=各フィールドのバイト数(x64/x86 で異なる場合は x64/x86 と併記)。x64/x86 列=フィールドのバイトオフセット(HSPで dupptr / lpoke / wpoke 等に使用)。

フィールド

フィールド型サイズx64x86説明
bLengthBYTE1+0+0このディスクリプタのサイズをバイト単位で示す。
bDescriptorTypeBYTE1+1+1ディスクリプタ種別。デバイス能力ディスクリプタ。
bDevCapabilityTypeBYTE1+2+2能力種別。SuperSpeed USBを示す。
bmAttributesBYTE1+3+3LTM対応等の属性ビットを示す。
wSpeedsSupportedWORD2+4+4対応する動作速度をビットマスクで示す。
bFunctionalitySupportBYTE1+6+6全機能を利用できる最低速度を示す。
bU1DevExitLatBYTE1+7+7U1省電力状態からの復帰遅延をマイクロ秒単位で示す。
wU2DevExitLatWORD2+8+8U2省電力状態からの復帰遅延をマイクロ秒単位で示す。

各言語での定義

#include <windows.h>

// USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR  (x64 10 / x86 10 バイト)
#pragma pack(push, 1)
typedef struct USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR {
    BYTE bLength;
    BYTE bDescriptorType;
    BYTE bDevCapabilityType;
    BYTE bmAttributes;
    WORD wSpeedsSupported;
    BYTE bFunctionalitySupport;
    BYTE bU1DevExitLat;
    WORD wU2DevExitLat;
} USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR;
#pragma pack(pop)
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, Pack = 1, CharSet = CharSet.Unicode)]
public struct USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR
{
    public byte bLength;
    public byte bDescriptorType;
    public byte bDevCapabilityType;
    public byte bmAttributes;
    public ushort wSpeedsSupported;
    public byte bFunctionalitySupport;
    public byte bU1DevExitLat;
    public ushort wU2DevExitLat;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, Pack:=1, CharSet:=CharSet.Unicode)>
Public Structure USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR
    Public bLength As Byte
    Public bDescriptorType As Byte
    Public bDevCapabilityType As Byte
    Public bmAttributes As Byte
    Public wSpeedsSupported As UShort
    Public bFunctionalitySupport As Byte
    Public bU1DevExitLat As Byte
    Public wU2DevExitLat As UShort
End Structure
import ctypes
from ctypes import wintypes

class USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR(ctypes.Structure):
    _pack_ = 1
    _fields_ = [
        ("bLength", ctypes.c_ubyte),
        ("bDescriptorType", ctypes.c_ubyte),
        ("bDevCapabilityType", ctypes.c_ubyte),
        ("bmAttributes", ctypes.c_ubyte),
        ("wSpeedsSupported", ctypes.c_ushort),
        ("bFunctionalitySupport", ctypes.c_ubyte),
        ("bU1DevExitLat", ctypes.c_ubyte),
        ("wU2DevExitLat", ctypes.c_ushort),
    ]
#[repr(C, packed(1))]
pub struct USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR {
    pub bLength: u8,
    pub bDescriptorType: u8,
    pub bDevCapabilityType: u8,
    pub bmAttributes: u8,
    pub wSpeedsSupported: u16,
    pub bFunctionalitySupport: u8,
    pub bU1DevExitLat: u8,
    pub wU2DevExitLat: u16,
}
import "golang.org/x/sys/windows"

type USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR struct {
	bLength byte
	bDescriptorType byte
	bDevCapabilityType byte
	bmAttributes byte
	wSpeedsSupported uint16
	bFunctionalitySupport byte
	bU1DevExitLat byte
	wU2DevExitLat uint16
}
type
  USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR = packed record
    bLength: Byte;
    bDescriptorType: Byte;
    bDevCapabilityType: Byte;
    bmAttributes: Byte;
    wSpeedsSupported: Word;
    bFunctionalitySupport: Byte;
    bU1DevExitLat: Byte;
    wU2DevExitLat: Word;
  end;
const USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR = extern struct {
    bLength: u8,
    bDescriptorType: u8,
    bDevCapabilityType: u8,
    bmAttributes: u8,
    wSpeedsSupported: u16,
    bFunctionalitySupport: u8,
    bU1DevExitLat: u8,
    wU2DevExitLat: u16,
};
type
  USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR {.packed.} = object
    bLength: uint8
    bDescriptorType: uint8
    bDevCapabilityType: uint8
    bmAttributes: uint8
    wSpeedsSupported: uint16
    bFunctionalitySupport: uint8
    bU1DevExitLat: uint8
    wU2DevExitLat: uint16
align(1)
struct USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR
{
    ubyte bLength;
    ubyte bDescriptorType;
    ubyte bDevCapabilityType;
    ubyte bmAttributes;
    ushort wSpeedsSupported;
    ubyte bFunctionalitySupport;
    ubyte bU1DevExitLat;
    ushort wU2DevExitLat;
}

HSP用 定義

HSP3.7/3.8 は構造体機能が無いため4byte整数配列(dim)+peek/poke で操作(32/64bitでサイズ・位置が異なる場合はタブで分割)。IronHSP は NSTRUCT(#defstruct/stdim/->)で32/64bit共通。

; HSP3.7/3.8 は構造体機能が無いため、4byte整数の配列変数で操作します。(x64 レイアウト)
; USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR サイズ: 10 バイト(x64)
dim st, 3    ; 4byte整数×3(構造体サイズ 10 / 4 切り上げ)
; bLength : BYTE (+0, 1byte)  poke st,0,値  /  値 = peek(st,0)
; bDescriptorType : BYTE (+1, 1byte)  poke st,1,値  /  値 = peek(st,1)
; bDevCapabilityType : BYTE (+2, 1byte)  poke st,2,値  /  値 = peek(st,2)
; bmAttributes : BYTE (+3, 1byte)  poke st,3,値  /  値 = peek(st,3)
; wSpeedsSupported : WORD (+4, 2byte)  wpoke st,4,値  /  値 = wpeek(st,4)
; bFunctionalitySupport : BYTE (+6, 1byte)  poke st,6,値  /  値 = peek(st,6)
; bU1DevExitLat : BYTE (+7, 1byte)  poke st,7,値  /  値 = peek(st,7)
; wU2DevExitLat : WORD (+8, 2byte)  wpoke st,8,値  /  値 = wpeek(st,8)
; ※4byte境界の整数は添字 st.N(N=オフセット/4)で読み書き可。それ以外は peek/poke 系を使用。
; IronHSP は NSTRUCT(構造体)をサポート。32bit/64bit どちらでも同じコードで動作します。
#defstruct global USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR, pack=1
    #field byte bLength
    #field byte bDescriptorType
    #field byte bDevCapabilityType
    #field byte bmAttributes
    #field short wSpeedsSupported
    #field byte bFunctionalitySupport
    #field byte bU1DevExitLat
    #field short wU2DevExitLat
#endstruct

stdim st, USB_DEVICE_CAPABILITY_SUPERSPEED_USB_DESCRIPTOR        ; NSTRUCT 変数を確保
st->bLength = 100
mes "bLength=" + st->bLength