#include "testlibusb.h"#define MY_VID 0x5345
#define MY_PID 0x1234USB::USB()
{usb_init(); /* initialize the library *///usb_set_debug(255);usb_find_busses(); /* find all busses */usb_find_devices(); /* find all connected devices */if (!(udev = open_dev())) {qDebug("error opening device: %s", usb_strerror());exit(1);} elseqDebug("open success: device %04X:%04X opened", MY_VID, MY_PID);printf_device_descriptor(&dev->descriptor);usb_close(udev);//my_usb_get_device_list();resize(320, 240);
}usb_dev_handle *USB::open_dev(void)
{struct usb_bus *bus;//struct usb_device *dev;for(bus = usb_get_busses(); bus; bus = bus->next) {for(dev = bus->devices; dev; dev = dev->next) {if((dev->descriptor.idVendor == MY_VID) && (dev->descriptor.idProduct == MY_PID)) {return usb_open(dev);}}}return 0;
}void USB::printf_device_descriptor(usb_device_descriptor *desc)
{qDebug("bLength:             %u",     desc->bLength);qDebug("bDescriptorType:     %02Xh",  desc->bDescriptorType);qDebug("bcdUSB:              %04Xh",  desc->bcdUSB);qDebug("bDeviceClass:        %02Xh",  desc->bDeviceClass);qDebug("bDeviceSubClass:     %02Xh",  desc->bDeviceSubClass);qDebug("bDeviceProtocol:     %02Xh",  desc->bDeviceProtocol);qDebug("bMaxPacketSize0:     %02Xh",  desc->bMaxPacketSize0);qDebug("idVendor:            %04Xh",  desc->idVendor);qDebug("idProduct:           %04Xh",  desc->idProduct);qDebug("bcdDevice:           %04Xh",  desc->bcdDevice);qDebug("iManufacturer:       %u",     desc->iManufacturer);qDebug("iProduct:            %u",     desc->iProduct);qDebug("iSerialNumber:       %u",     desc->iSerialNumber);qDebug("bNumConfigurations:  %u",     desc->bNumConfigurations);
}

#include "testlibusb.h"//for Tiny6410
//#define MY_VID 0x5345
//#define MY_PID 0x1234//for 51 USB Board
#define MY_VID 0x8888
#define MY_PID 0x0001// Device configuration and interface id.
#define MY_CONFIG 1
#define MY_INTF 0// Device endpoint 2
#define EP_IN 0x82
#define EP_OUT 0x02// Device of bytes to transfer.
#define BUF_SIZE 64//#define DEBUG_GUI
USB::USB()
{
#ifndef DEBUG_GUIusb_init(); /* initialize the library *///usb_set_debug(255);usb_find_busses(); /* find all busses */usb_find_devices(); /* find all connected devices */if (!(udev = open_dev())) {qDebug("error opening device: %s", usb_strerror());exit(1);} elseqDebug("open success: device %04X:%04X opened", MY_VID, MY_PID);printf_device_descriptor(&dev->descriptor);my_init_usbdev();
#endiftextEdit = new QTextEdit(this);textEdit->setGeometry(50,20,230,40);sendButton = new QPushButton(this);sendButton->setText("send");sendButton->setGeometry(130,80,60,40);connect(sendButton,SIGNAL(clicked()),this,SLOT(send_slot()));readButton = new QPushButton(this);readButton->setText("read");readButton->setGeometry(130,140,60,40);connect(readButton,SIGNAL(clicked()),this,SLOT(read_slot()));recvLabel = new QLabel(this);recvLabel->setText("recv data:");recvLabel->setGeometry(20,180,280,40);//my_usb_get_device_list();resize(320, 240);
}//关闭程序时被调用
USB::~USB()
{
#ifndef DEBUG_GUIqDebug("close usb device.");usb_close(udev);
#endif
}//打开指定VID、PID的USB设备
usb_dev_handle *USB::open_dev(void)
{struct usb_bus *bus;for(bus = usb_get_busses(); bus; bus = bus->next) {for(dev = bus->devices; dev; dev = dev->next) {if((dev->descriptor.idVendor == MY_VID) && (dev->descriptor.idProduct == MY_PID)) {return usb_open(dev);}}}return 0;
}//打印USB设备描述符
void USB::printf_device_descriptor(usb_device_descriptor *desc)
{qDebug("bLength:             %u",     desc->bLength);qDebug("bDescriptorType:     %02Xh",  desc->bDescriptorType);qDebug("bcdUSB:              %04Xh",  desc->bcdUSB);qDebug("bDeviceClass:        %02Xh",  desc->bDeviceClass);qDebug("bDeviceSubClass:     %02Xh",  desc->bDeviceSubClass);qDebug("bDeviceProtocol:     %02Xh",  desc->bDeviceProtocol);qDebug("bMaxPacketSize0:     %02Xh",  desc->bMaxPacketSize0);qDebug("idVendor:            %04Xh",  desc->idVendor);qDebug("idProduct:           %04Xh",  desc->idProduct);qDebug("bcdDevice:           %04Xh",  desc->bcdDevice);qDebug("iManufacturer:       %u",     desc->iManufacturer);qDebug("iProduct:            %u",     desc->iProduct);qDebug("iSerialNumber:       %u",     desc->iSerialNumber);qDebug("bNumConfigurations:  %u",     desc->bNumConfigurations);
}//指定USB设备的配置和接口
void USB::my_init_usbdev()
{//libusb规定下面这两个函数必须要被调用if (usb_set_configuration(udev, MY_CONFIG) < 0) {qDebug("error setting config #%d: %s", MY_CONFIG, usb_strerror());exit(1);}if (usb_claim_interface(udev, MY_INTF) < 0) {qDebug("error claiming interface #%d:\n%s", MY_INTF, usb_strerror());exit(1);}
}//发送按钮响应函数
void USB::send_slot()
{int ret, num;QString s = textEdit->toPlainText();QByteArray a = s.toLatin1();char *tmp = a.data();num = s.length();//qDebug()<<"text: "<<tmp<<"length: "<<num;//批量写(同步)ret = usb_bulk_write(udev, EP_OUT, tmp, num, 5000);if (ret < 0) {qDebug("error writing: %s", usb_strerror());exit(1);}
}//读按钮响应函数
void USB::read_slot()
{int ret;char readdata[BUF_SIZE];//批量读(同步)ret = usb_bulk_read(udev, EP_IN, readdata, sizeof(readdata), 5000);if (ret < 0) {qDebug("error reading:%s", usb_strerror());exit(1);}readdata[ret] = '\0';//将接收到的数据显示在Label上recvLabel->setText("recv: " + QLatin1String(readdata));
}