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WinUsb_ControlTransfer
関数デフォルトエンドポイントを介して制御転送を行う。
シグネチャ
// WINUSB.dll
#include <windows.h>
BOOL WinUsb_ControlTransfer(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
WINUSB_SETUP_PACKET SetupPacket,
BYTE* Buffer, // optional
DWORD BufferLength,
DWORD* LengthTransferred, // optional
OVERLAPPED* Overlapped // optional
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| InterfaceHandle | WINUSB_INTERFACE_HANDLE | in | コントロール転送を行う対象のWinUSBインターフェイスハンドル。 |
| SetupPacket | WINUSB_SETUP_PACKET | in | 転送内容を指定する8バイトのWINUSB_SETUP_PACKET構造体。 |
| Buffer | BYTE* | outoptional | データステージで送受信するデータのバッファへのポインタ。不要時はNULL。 |
| BufferLength | DWORD | in | Bufferのバイト数。SetupPacket.Lengthと一致させる。 |
| LengthTransferred | DWORD* | outoptional | 実際に転送されたバイト数を受け取る出力先ポインタ。非同期時はNULL可。 |
| Overlapped | OVERLAPPED* | inoptional | 非同期I/O用のOVERLAPPED構造体へのポインタ。同期時はNULL。 |
戻り値の型: BOOL
各言語での呼び出し定義
// WINUSB.dll
#include <windows.h>
BOOL WinUsb_ControlTransfer(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
WINUSB_SETUP_PACKET SetupPacket,
BYTE* Buffer, // optional
DWORD BufferLength,
DWORD* LengthTransferred, // optional
OVERLAPPED* Overlapped // optional
);[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WINUSB.dll", SetLastError = true, ExactSpelling = true)]
static extern bool WinUsb_ControlTransfer(
IntPtr InterfaceHandle, // WINUSB_INTERFACE_HANDLE
WINUSB_SETUP_PACKET SetupPacket, // WINUSB_SETUP_PACKET
IntPtr Buffer, // BYTE* optional, out
uint BufferLength, // DWORD
IntPtr LengthTransferred, // DWORD* optional, out
IntPtr Overlapped // OVERLAPPED* optional
);<DllImport("WINUSB.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WinUsb_ControlTransfer(
InterfaceHandle As IntPtr, ' WINUSB_INTERFACE_HANDLE
SetupPacket As WINUSB_SETUP_PACKET, ' WINUSB_SETUP_PACKET
Buffer As IntPtr, ' BYTE* optional, out
BufferLength As UInteger, ' DWORD
LengthTransferred As IntPtr, ' DWORD* optional, out
Overlapped As IntPtr ' OVERLAPPED* optional
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function' InterfaceHandle : WINUSB_INTERFACE_HANDLE
' SetupPacket : WINUSB_SETUP_PACKET
' Buffer : BYTE* optional, out
' BufferLength : DWORD
' LengthTransferred : DWORD* optional, out
' Overlapped : OVERLAPPED* optional
Declare PtrSafe Function WinUsb_ControlTransfer Lib "winusb" ( _
ByVal InterfaceHandle As LongPtr, _
ByVal SetupPacket As LongPtr, _
ByVal Buffer As LongPtr, _
ByVal BufferLength As Long, _
ByVal LengthTransferred As LongPtr, _
ByVal Overlapped As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
WinUsb_ControlTransfer = ctypes.windll.winusb.WinUsb_ControlTransfer
WinUsb_ControlTransfer.restype = wintypes.BOOL
WinUsb_ControlTransfer.argtypes = [
wintypes.HANDLE, # InterfaceHandle : WINUSB_INTERFACE_HANDLE
WINUSB_SETUP_PACKET, # SetupPacket : WINUSB_SETUP_PACKET
ctypes.POINTER(ctypes.c_ubyte), # Buffer : BYTE* optional, out
wintypes.DWORD, # BufferLength : DWORD
ctypes.POINTER(wintypes.DWORD), # LengthTransferred : DWORD* optional, out
ctypes.c_void_p, # Overlapped : OVERLAPPED* optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('WINUSB.dll')
WinUsb_ControlTransfer = Fiddle::Function.new(
lib['WinUsb_ControlTransfer'],
[
Fiddle::TYPE_VOIDP, # InterfaceHandle : WINUSB_INTERFACE_HANDLE
Fiddle::TYPE_VOIDP, # SetupPacket : WINUSB_SETUP_PACKET
Fiddle::TYPE_VOIDP, # Buffer : BYTE* optional, out
-Fiddle::TYPE_INT, # BufferLength : DWORD
Fiddle::TYPE_VOIDP, # LengthTransferred : DWORD* optional, out
Fiddle::TYPE_VOIDP, # Overlapped : OVERLAPPED* optional
],
Fiddle::TYPE_INT)#[link(name = "winusb")]
extern "system" {
fn WinUsb_ControlTransfer(
InterfaceHandle: *mut core::ffi::c_void, // WINUSB_INTERFACE_HANDLE
SetupPacket: WINUSB_SETUP_PACKET, // WINUSB_SETUP_PACKET
Buffer: *mut u8, // BYTE* optional, out
BufferLength: u32, // DWORD
LengthTransferred: *mut u32, // DWORD* optional, out
Overlapped: *mut OVERLAPPED // OVERLAPPED* optional
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WINUSB.dll", SetLastError = true)]
public static extern bool WinUsb_ControlTransfer(IntPtr InterfaceHandle, WINUSB_SETUP_PACKET SetupPacket, IntPtr Buffer, uint BufferLength, IntPtr LengthTransferred, IntPtr Overlapped);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINUSB_WinUsb_ControlTransfer' -Namespace Win32 -PassThru
# $api::WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped)#uselib "WINUSB.dll"
#func global WinUsb_ControlTransfer "WinUsb_ControlTransfer" sptr, sptr, sptr, sptr, sptr, sptr
; WinUsb_ControlTransfer InterfaceHandle, SetupPacket, varptr(Buffer), BufferLength, varptr(LengthTransferred), varptr(Overlapped) ; 戻り値は stat
; InterfaceHandle : WINUSB_INTERFACE_HANDLE -> "sptr"
; SetupPacket : WINUSB_SETUP_PACKET -> "sptr"
; Buffer : BYTE* optional, out -> "sptr"
; BufferLength : DWORD -> "sptr"
; LengthTransferred : DWORD* optional, out -> "sptr"
; Overlapped : OVERLAPPED* optional -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。出力引数:
#uselib "WINUSB.dll" #cfunc global WinUsb_ControlTransfer "WinUsb_ControlTransfer" sptr, int, var, int, var, var ; res = WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped) ; InterfaceHandle : WINUSB_INTERFACE_HANDLE -> "sptr" ; SetupPacket : WINUSB_SETUP_PACKET -> "int" ; Buffer : BYTE* optional, out -> "var" ; BufferLength : DWORD -> "int" ; LengthTransferred : DWORD* optional, out -> "var" ; Overlapped : OVERLAPPED* optional -> "var" ; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。 ; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "WINUSB.dll" #cfunc global WinUsb_ControlTransfer "WinUsb_ControlTransfer" sptr, int, sptr, int, sptr, sptr ; res = WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, varptr(Buffer), BufferLength, varptr(LengthTransferred), varptr(Overlapped)) ; InterfaceHandle : WINUSB_INTERFACE_HANDLE -> "sptr" ; SetupPacket : WINUSB_SETUP_PACKET -> "int" ; Buffer : BYTE* optional, out -> "sptr" ; BufferLength : DWORD -> "int" ; LengthTransferred : DWORD* optional, out -> "sptr" ; Overlapped : OVERLAPPED* optional -> "sptr" ; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。 ; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。
出力引数:
; BOOL WinUsb_ControlTransfer(WINUSB_INTERFACE_HANDLE InterfaceHandle, WINUSB_SETUP_PACKET SetupPacket, BYTE* Buffer, DWORD BufferLength, DWORD* LengthTransferred, OVERLAPPED* Overlapped) #uselib "WINUSB.dll" #cfunc global WinUsb_ControlTransfer "WinUsb_ControlTransfer" intptr, int, var, int, var, var ; res = WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped) ; InterfaceHandle : WINUSB_INTERFACE_HANDLE -> "intptr" ; SetupPacket : WINUSB_SETUP_PACKET -> "int" ; Buffer : BYTE* optional, out -> "var" ; BufferLength : DWORD -> "int" ; LengthTransferred : DWORD* optional, out -> "var" ; Overlapped : OVERLAPPED* optional -> "var" ; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。 ; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; BOOL WinUsb_ControlTransfer(WINUSB_INTERFACE_HANDLE InterfaceHandle, WINUSB_SETUP_PACKET SetupPacket, BYTE* Buffer, DWORD BufferLength, DWORD* LengthTransferred, OVERLAPPED* Overlapped) #uselib "WINUSB.dll" #cfunc global WinUsb_ControlTransfer "WinUsb_ControlTransfer" intptr, int, intptr, int, intptr, intptr ; res = WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, varptr(Buffer), BufferLength, varptr(LengthTransferred), varptr(Overlapped)) ; InterfaceHandle : WINUSB_INTERFACE_HANDLE -> "intptr" ; SetupPacket : WINUSB_SETUP_PACKET -> "int" ; Buffer : BYTE* optional, out -> "intptr" ; BufferLength : DWORD -> "int" ; LengthTransferred : DWORD* optional, out -> "intptr" ; Overlapped : OVERLAPPED* optional -> "intptr" ; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。 ; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。
import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
winusb = windows.NewLazySystemDLL("WINUSB.dll")
procWinUsb_ControlTransfer = winusb.NewProc("WinUsb_ControlTransfer")
)
// InterfaceHandle (WINUSB_INTERFACE_HANDLE), SetupPacket (WINUSB_SETUP_PACKET), Buffer (BYTE* optional, out), BufferLength (DWORD), LengthTransferred (DWORD* optional, out), Overlapped (OVERLAPPED* optional)
r1, _, err := procWinUsb_ControlTransfer.Call(
uintptr(InterfaceHandle),
uintptr(SetupPacket),
uintptr(Buffer),
uintptr(BufferLength),
uintptr(LengthTransferred),
uintptr(Overlapped),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // BOOLfunction WinUsb_ControlTransfer(
InterfaceHandle: THandle; // WINUSB_INTERFACE_HANDLE
SetupPacket: WINUSB_SETUP_PACKET; // WINUSB_SETUP_PACKET
Buffer: Pointer; // BYTE* optional, out
BufferLength: DWORD; // DWORD
LengthTransferred: Pointer; // DWORD* optional, out
Overlapped: Pointer // OVERLAPPED* optional
): BOOL; stdcall;
external 'WINUSB.dll' name 'WinUsb_ControlTransfer';result := DllCall("WINUSB\WinUsb_ControlTransfer"
, "Ptr", InterfaceHandle ; WINUSB_INTERFACE_HANDLE
, "Ptr", SetupPacket ; WINUSB_SETUP_PACKET
, "Ptr", Buffer ; BYTE* optional, out
, "UInt", BufferLength ; DWORD
, "Ptr", LengthTransferred ; DWORD* optional, out
, "Ptr", Overlapped ; OVERLAPPED* optional
, "Int") ; return: BOOL●WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped) = DLL("WINUSB.dll", "bool WinUsb_ControlTransfer(void*, void*, void*, dword, void*, void*)")
# 呼び出し: WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped)
# InterfaceHandle : WINUSB_INTERFACE_HANDLE -> "void*"
# SetupPacket : WINUSB_SETUP_PACKET -> "void*"
# Buffer : BYTE* optional, out -> "void*"
# BufferLength : DWORD -> "dword"
# LengthTransferred : DWORD* optional, out -> "void*"
# Overlapped : OVERLAPPED* optional -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。const std = @import("std");
extern "winusb" fn WinUsb_ControlTransfer(
InterfaceHandle: ?*anyopaque, // WINUSB_INTERFACE_HANDLE
SetupPacket: WINUSB_SETUP_PACKET, // WINUSB_SETUP_PACKET
Buffer: [*c]u8, // BYTE* optional, out
BufferLength: u32, // DWORD
LengthTransferred: [*c]u32, // DWORD* optional, out
Overlapped: [*c]OVERLAPPED // OVERLAPPED* optional
) callconv(std.os.windows.WINAPI) i32;proc WinUsb_ControlTransfer(
InterfaceHandle: pointer, # WINUSB_INTERFACE_HANDLE
SetupPacket: WINUSB_SETUP_PACKET, # WINUSB_SETUP_PACKET
Buffer: ptr uint8, # BYTE* optional, out
BufferLength: uint32, # DWORD
LengthTransferred: ptr uint32, # DWORD* optional, out
Overlapped: ptr OVERLAPPED # OVERLAPPED* optional
): int32 {.importc: "WinUsb_ControlTransfer", stdcall, dynlib: "WINUSB.dll".}pragma(lib, "winusb");
extern(Windows)
int WinUsb_ControlTransfer(
void* InterfaceHandle, // WINUSB_INTERFACE_HANDLE
WINUSB_SETUP_PACKET SetupPacket, // WINUSB_SETUP_PACKET
ubyte* Buffer, // BYTE* optional, out
uint BufferLength, // DWORD
uint* LengthTransferred, // DWORD* optional, out
OVERLAPPED* Overlapped // OVERLAPPED* optional
);ccall((:WinUsb_ControlTransfer, "WINUSB.dll"), stdcall, Int32,
(Ptr{Cvoid}, WINUSB_SETUP_PACKET, Ptr{UInt8}, UInt32, Ptr{UInt32}, Ptr{OVERLAPPED}),
InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped)
# InterfaceHandle : WINUSB_INTERFACE_HANDLE -> Ptr{Cvoid}
# SetupPacket : WINUSB_SETUP_PACKET -> WINUSB_SETUP_PACKET
# Buffer : BYTE* optional, out -> Ptr{UInt8}
# BufferLength : DWORD -> UInt32
# LengthTransferred : DWORD* optional, out -> Ptr{UInt32}
# Overlapped : OVERLAPPED* optional -> Ptr{OVERLAPPED}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
int32_t WinUsb_ControlTransfer(
void* InterfaceHandle,
WINUSB_SETUP_PACKET SetupPacket,
uint8_t* Buffer,
uint32_t BufferLength,
uint32_t* LengthTransferred,
void* Overlapped);
]]
local winusb = ffi.load("winusb")
-- winusb.WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped)
-- InterfaceHandle : WINUSB_INTERFACE_HANDLE
-- SetupPacket : WINUSB_SETUP_PACKET
-- Buffer : BYTE* optional, out
-- BufferLength : DWORD
-- LengthTransferred : DWORD* optional, out
-- Overlapped : OVERLAPPED* optional
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。const koffi = require('koffi');
const lib = koffi.load('WINUSB.dll');
const WinUsb_ControlTransfer = lib.func('__stdcall', 'WinUsb_ControlTransfer', 'int32_t', ['void *', 'WINUSB_SETUP_PACKET', 'uint8_t *', 'uint32_t', 'uint32_t *', 'void *']);
// WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped)
// InterfaceHandle : WINUSB_INTERFACE_HANDLE -> 'void *'
// SetupPacket : WINUSB_SETUP_PACKET -> 'WINUSB_SETUP_PACKET'
// Buffer : BYTE* optional, out -> 'uint8_t *'
// BufferLength : DWORD -> 'uint32_t'
// LengthTransferred : DWORD* optional, out -> 'uint32_t *'
// Overlapped : OVERLAPPED* optional -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。const lib = Deno.dlopen("WINUSB.dll", {
WinUsb_ControlTransfer: { parameters: ["pointer", "buffer", "pointer", "u32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped)
// InterfaceHandle : WINUSB_INTERFACE_HANDLE -> "pointer"
// SetupPacket : WINUSB_SETUP_PACKET -> "buffer"
// Buffer : BYTE* optional, out -> "pointer"
// BufferLength : DWORD -> "u32"
// LengthTransferred : DWORD* optional, out -> "pointer"
// Overlapped : OVERLAPPED* optional -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。<?php
$ffi = FFI::cdef(<<<C
int32_t WinUsb_ControlTransfer(
void* InterfaceHandle,
WINUSB_SETUP_PACKET SetupPacket,
uint8_t* Buffer,
uint32_t BufferLength,
uint32_t* LengthTransferred,
void* Overlapped);
C, "WINUSB.dll");
// $ffi->WinUsb_ControlTransfer(InterfaceHandle, SetupPacket, Buffer, BufferLength, LengthTransferred, Overlapped);
// InterfaceHandle : WINUSB_INTERFACE_HANDLE
// SetupPacket : WINUSB_SETUP_PACKET
// Buffer : BYTE* optional, out
// BufferLength : DWORD
// LengthTransferred : DWORD* optional, out
// Overlapped : OVERLAPPED* optional
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Winusb extends StdCallLibrary {
Winusb INSTANCE = Native.load("winusb", Winusb.class);
boolean WinUsb_ControlTransfer(
Pointer InterfaceHandle, // WINUSB_INTERFACE_HANDLE
WINUSB_SETUP_PACKET /* extends Structure (by value) */ SetupPacket, // WINUSB_SETUP_PACKET
byte[] Buffer, // BYTE* optional, out
int BufferLength, // DWORD
IntByReference LengthTransferred, // DWORD* optional, out
Pointer Overlapped // OVERLAPPED* optional
);
}@[Link("winusb")]
lib LibWINUSB
fun WinUsb_ControlTransfer = WinUsb_ControlTransfer(
InterfaceHandle : Void*, # WINUSB_INTERFACE_HANDLE
SetupPacket : WINUSB_SETUP_PACKET, # WINUSB_SETUP_PACKET
Buffer : UInt8*, # BYTE* optional, out
BufferLength : UInt32, # DWORD
LengthTransferred : UInt32*, # DWORD* optional, out
Overlapped : OVERLAPPED* # OVERLAPPED* optional
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef WinUsb_ControlTransferNative = Int32 Function(Pointer<Void>, WINUSB_SETUP_PACKET, Pointer<Uint8>, Uint32, Pointer<Uint32>, Pointer<Void>);
typedef WinUsb_ControlTransferDart = int Function(Pointer<Void>, int, Pointer<Uint8>, int, Pointer<Uint32>, Pointer<Void>);
final WinUsb_ControlTransfer = DynamicLibrary.open('WINUSB.dll')
.lookupFunction<WinUsb_ControlTransferNative, WinUsb_ControlTransferDart>('WinUsb_ControlTransfer');
// InterfaceHandle : WINUSB_INTERFACE_HANDLE -> Pointer<Void>
// SetupPacket : WINUSB_SETUP_PACKET -> WINUSB_SETUP_PACKET
// Buffer : BYTE* optional, out -> Pointer<Uint8>
// BufferLength : DWORD -> Uint32
// LengthTransferred : DWORD* optional, out -> Pointer<Uint32>
// Overlapped : OVERLAPPED* optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function WinUsb_ControlTransfer(
InterfaceHandle: THandle; // WINUSB_INTERFACE_HANDLE
SetupPacket: WINUSB_SETUP_PACKET; // WINUSB_SETUP_PACKET
Buffer: Pointer; // BYTE* optional, out
BufferLength: DWORD; // DWORD
LengthTransferred: Pointer; // DWORD* optional, out
Overlapped: Pointer // OVERLAPPED* optional
): BOOL; stdcall;
external 'WINUSB.dll' name 'WinUsb_ControlTransfer';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "WinUsb_ControlTransfer"
c_WinUsb_ControlTransfer :: Ptr () -> WINUSB_SETUP_PACKET -> Ptr Word8 -> Word32 -> Ptr Word32 -> Ptr () -> IO CInt
-- InterfaceHandle : WINUSB_INTERFACE_HANDLE -> Ptr ()
-- SetupPacket : WINUSB_SETUP_PACKET -> WINUSB_SETUP_PACKET
-- Buffer : BYTE* optional, out -> Ptr Word8
-- BufferLength : DWORD -> Word32
-- LengthTransferred : DWORD* optional, out -> Ptr Word32
-- Overlapped : OVERLAPPED* optional -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
-- ※値渡し構造体は GHC FFI で直接渡せません。Ptr で渡すラッパ(C側)経由にしてください。open Ctypes
open Foreign
let winusb_controltransfer =
foreign "WinUsb_ControlTransfer"
((ptr void) @-> WINUSB_SETUP_PACKET @-> (ptr uint8_t) @-> uint32_t @-> (ptr uint32_t) @-> (ptr void) @-> returning int32_t)
(* InterfaceHandle : WINUSB_INTERFACE_HANDLE -> (ptr void) *)
(* SetupPacket : WINUSB_SETUP_PACKET -> WINUSB_SETUP_PACKET *)
(* Buffer : BYTE* optional, out -> (ptr uint8_t) *)
(* BufferLength : DWORD -> uint32_t *)
(* LengthTransferred : DWORD* optional, out -> (ptr uint32_t) *)
(* Overlapped : OVERLAPPED* optional -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)(cffi:define-foreign-library winusb (t "WINUSB.dll"))
(cffi:use-foreign-library winusb)
(cffi:defcfun ("WinUsb_ControlTransfer" win-usb-control-transfer :convention :stdcall) :int32
(interface-handle :pointer) ; WINUSB_INTERFACE_HANDLE
(setup-packet (:struct winusb-setup-packet)) ; WINUSB_SETUP_PACKET
(buffer :pointer) ; BYTE* optional, out
(buffer-length :uint32) ; DWORD
(length-transferred :pointer) ; DWORD* optional, out
(overlapped :pointer)) ; OVERLAPPED* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $WinUsb_ControlTransfer = Win32::API::More->new('WINUSB',
'BOOL WinUsb_ControlTransfer(HANDLE InterfaceHandle, LPVOID SetupPacket, LPVOID Buffer, DWORD BufferLength, LPVOID LengthTransferred, LPVOID Overlapped)');
# my $ret = $WinUsb_ControlTransfer->Call($InterfaceHandle, $SetupPacket, $Buffer, $BufferLength, $LengthTransferred, $Overlapped);
# InterfaceHandle : WINUSB_INTERFACE_HANDLE -> HANDLE
# SetupPacket : WINUSB_SETUP_PACKET -> LPVOID
# Buffer : BYTE* optional, out -> LPVOID
# BufferLength : DWORD -> DWORD
# LengthTransferred : DWORD* optional, out -> LPVOID
# Overlapped : OVERLAPPED* optional -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。