43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
#ifndef HIDDEV_H
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#define HIDDEV_H
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#include <libusb-1.0/libusb.h>
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#include <thread>
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/* USB热拔插支持: USB热拔插通过事件驱动，不用频繁查询USB的连接事件，减少CPU占用。
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部分libusb库不支持热拔插，根据实际情况选择是否开启热拔插 */
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#define USB_HOT_PLUG_SUPPORT 0
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class HIDDev {
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public:
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HIDDev();
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~HIDDev();
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bool openDevice(int vendor_id, int product_id);
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void closeDevice();
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int read(unsigned char *data, int length);
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int write(const unsigned char *data, int length);
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void handleEvents();
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bool isConnected();
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private:
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#if USB_HOT_PLUG_SUPPORT
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// 热拔插回调函数
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static int LIBUSB_CALL hotplug_callback(libusb_context *ctx, libusb_device *device,
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libusb_hotplug_event event, void *user_data);
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#endif
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void usbEventHandling();
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libusb_device_handle *dev_handle;
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libusb_context *ctx;
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std::thread usbThread; // USB事件线程，处理USB的断开重连事件
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bool stopThread = false; // 线程停止标志位，用于程序退出时，线程能正确退出
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bool devArrived = false; // USB设备连接标志位，表示设备插入待连接
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int vendorId;
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int productId;
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bool connected = false;
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bool reconnectFlag = false;
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bool tryReconnect();
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};
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#endif // HIDDEV_H
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