加入Claim Interface，看看内核是否还报错

mainwindow.cpp

@@ -104,9 +104,20 @@ void MainWindow::on_pushButton_4_clicked()
     QString endpointAddress = match.captured(0); // 获取第一个匹配的结果
     uint8_t endpointValue = endpointAddress.mid(2).toUInt(NULL, 16); // 16 表示十六进制
 
-    uint8_t data=ui->textEdit->toPlainText().toUInt();
+
+
+    tmp = ui->comboBox_2->currentText();
+    QRegularExpression interfaceRegex("Interface #\\[(\\d+)\\]");
+    QRegularExpressionMatch interfaceMatch = interfaceRegex.match(tmp);
+    int interface = interfaceMatch.captured(1).toInt();
+
+    uint8_t* data =reinterpret_cast<uint8_t*>(ui->textEdit->toPlainText().toUtf8().data());
+    // uint8_t data=ui->textEdit->toPlainText().toUInt();
     int len = ui->textEdit->toPlainText().length();
-    if(uh->sendBulkTransfer(endpointValue,&data,len)){
+    for(int i=0;i<len;i++){
+        LOG_DEBUG("Send data is 0x%x",data[i]);
+    }
+    if(uh->sendBulkTransfer(endpointValue,data,len,interface)){
       LOG_DEBUG("Send endPoint 0x%x via BulkTransfer success.",endpointValue);
     }
 
@@ -121,9 +132,19 @@ void MainWindow::on_pushButton_3_clicked()
     QString endpointAddress = match.captured(0); // 获取第一个匹配的结果
     uint8_t endpointValue = endpointAddress.mid(2).toUInt(NULL, 16); // 16 表示十六进制
 
-    uint8_t data=ui->textEdit->toPlainText().toUInt();
+
+    tmp = ui->comboBox_2->currentText();
+    QRegularExpression interfaceRegex("Interface #\\[(\\d+)\\]");
+    QRegularExpressionMatch interfaceMatch = interfaceRegex.match(tmp);
+    int interface = interfaceMatch.captured(1).toInt();
+
+    uint8_t* data =reinterpret_cast<uint8_t*>(ui->textEdit->toPlainText().toUtf8().data());
     int len = ui->textEdit->toPlainText().length();
-    if(uh->sendAsyncTransfer(endpointValue,&data,len)){
+
+    for(int i=0;i<len;i++){
+        LOG_DEBUG("Send data is 0x%x",data[i]);
+    }
+    if(uh->sendAsyncTransfer(endpointValue,data,len,interface)){
         LOG_DEBUG("Send endPoint 0x%x via AsyncTransfer success.",endpointValue);
     }
 }

upper.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 16.0.1, 2025-06-06T11:38:55. -->
+<!-- Written by QtCreator 16.0.1, 2025-06-06T12:27:01. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
@@ -245,11 +245,14 @@
     <value type="bool" key="PE.EnvironmentAspect.PrintOnRun">false</value>
     <value type="QString" key="PerfRecordArgsId">-e cpu-cycles --call-graph dwarf,4096 -F 250</value>
     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4RunConfiguration:</value>
-    <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
+    <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey">/home/leo/devCode/outer/USBFilter_30/uppper_LibUSB/upper.pro</value>
-    <value type="bool" key="ProjectExplorer.RunConfiguration.Customized">false</value>
+    <value type="bool" key="ProjectExplorer.RunConfiguration.Customized">true</value>
+    <value type="bool" key="RunConfiguration.RunAsRoot">true</value>
     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
+    <value type="bool" key="RunConfiguration.UseLibrarySearchPath">true</value>
     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
+    <value type="QString" key="RunConfiguration.WorkingDirectory.default">/home/leo/devCode/outer/USBFilter_30/uppper_LibUSB/build/Desktop_Qt_5_15_2_GCC_64bit-Debug</value>
    </valuemap>
    <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
   </valuemap>

usbhandler.cpp

@@ -76,6 +76,8 @@ bool UsbHandler::sendControlTransfer(uint8_t bmRequestType, uint8_t bRequest, ui
         emit errorOccurred("No device handle.");
         return false;
     }
+
+
     int status = libusb_control_transfer(handle, bmRequestType, bRequest, wValue, wIndex, data, length, 1000);
     if (status < 0) {
         emit errorOccurred("Control transfer failed.");
@@ -84,19 +86,34 @@ bool UsbHandler::sendControlTransfer(uint8_t bmRequestType, uint8_t bRequest, ui
     return true;
 }
 
-bool UsbHandler::sendBulkTransfer(uint8_t endpoint, uint8_t *data, int length)
+bool UsbHandler::sendBulkTransfer(uint8_t endpoint, uint8_t *data, int length,int interfaceNum)
 {
+    int status;
     if (handle == nullptr) {
         emit errorOccurred("No device handle.");
         return false;
     }
 
-    int actualLength;
+    // 获取接口权限（可选，部分系统如Linux必须）
-    int status = libusb_bulk_transfer(handle, endpoint, data, length, &actualLength, 1000);
+    if (libusb_kernel_driver_active(handle, interfaceNum)) {
+        libusb_detach_kernel_driver(handle, interfaceNum);
+    }
+
+    status = libusb_claim_interface(handle, interfaceNum);
     if (status < 0) {
-        emit errorOccurred("Bulk transfer failed.");
+        LOG_ERROR("Failed to claim interface: %d",interfaceNum);
         return false;
     }
+
+    int actualLength;
+    status = libusb_bulk_transfer(handle, endpoint, data, length, &actualLength, 1000);
+    if (status < 0) {
+        emit errorOccurred("Bulk transfer failed.");
+        libusb_release_interface(handle, interfaceNum);
+        return false;
+    }
+
+    libusb_release_interface(handle, interfaceNum);
     return true;
 }
 
@@ -118,8 +135,9 @@ bool UsbHandler::sendBulkTransfer(uint8_t endpoint, uint8_t *data, int length)
 // }
 
 
-bool UsbHandler::sendAsyncTransfer(uint8_t endpoint, uint8_t *data, int length)
+bool UsbHandler::sendAsyncTransfer(uint8_t endpoint, uint8_t *data, int length,int interfaceNum)
 {
+    int status;
     if (handle == nullptr) {
         emit errorOccurred("No device handle.");
         return false;
@@ -132,6 +150,18 @@ bool UsbHandler::sendAsyncTransfer(uint8_t endpoint, uint8_t *data, int length)
         return false;
     }
 
+    // 获取接口权限（可选，部分系统如Linux必须）
+    if (libusb_kernel_driver_active(handle, interfaceNum)) {
+        libusb_detach_kernel_driver(handle, interfaceNum);
+    }
+
+    status = libusb_claim_interface(handle, interfaceNum);
+    if (status < 0) {
+        LOG_ERROR("Failed to claim interface: %d",interfaceNum);
+        return false;
+    }
+
+
     // 2. 设置传输类型和参数
     if (endpoint & LIBUSB_ENDPOINT_IN) {  // 如果是输入端点 (IN)
         libusb_fill_bulk_transfer(transfer, handle, endpoint, data, length,
@@ -158,14 +188,16 @@ bool UsbHandler::sendAsyncTransfer(uint8_t endpoint, uint8_t *data, int length)
     }
 
     // 3. 提交传输
-    int status = libusb_submit_transfer(transfer);
+    status = libusb_submit_transfer(transfer);
     if (status < 0) {
         emit errorOccurred("Failed to submit async transfer.");
         libusb_free_transfer(transfer);
+        libusb_release_interface(handle, interfaceNum);
         return false;
     }
 
-    libusb_handle_events(context);  // 确保事件循环能处理异步传输
+    libusb_release_interface(handle, interfaceNum);
+    // libusb_handle_events(context);  // 确保事件循环能处理异步传输
 
     return true;
 }

usbhandler.h

@@ -31,8 +31,8 @@ public:
         );
 
 
-    bool sendBulkTransfer(uint8_t endpoint, uint8_t *data, int length);
+    bool sendBulkTransfer(uint8_t endpoint, uint8_t *data, int length,int interfaceNum);
-    bool sendAsyncTransfer(uint8_t endpoint, uint8_t *data, int length);
+    bool sendAsyncTransfer(uint8_t endpoint, uint8_t *data, int length,int interfaceNum);
     void listInterfaces(int deviceIndex);
 
     // bool sendInterruptTransfer(uint8_t endpoint, uint8_t *data, int length);