62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <libusb-1.0/libusb.h>
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#define VENDOR_ID 0x1a86 // 替换为你的设备 VID
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#define PRODUCT_ID 0x55de // 替换为你的设备 PID
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#define BULK_EP_OUT 0x06 // OUT端点地址（低位为0表示OUT）
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#define INTERFACE_NUMBER 4 // USB接口编号
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int main(void) {
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libusb_device_handle *handle = NULL;
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int r;
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int transferred;
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unsigned char send_data[] = {0x01, 0x02, 0x03, 0x04, 0x05}; // 要发送的数据
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// 初始化libusb
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r = libusb_init(NULL);
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if (r < 0) {
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fprintf(stderr, "Failed to init libusb: %s\n", libusb_error_name(r));
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return EXIT_FAILURE;
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}
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// 打开设备
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handle = libusb_open_device_with_vid_pid(NULL, VENDOR_ID, PRODUCT_ID);
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if (!handle) {
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fprintf(stderr, "Failed to open device\n");
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libusb_exit(NULL);
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return EXIT_FAILURE;
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}
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// 获取接口权限（可选，部分系统如Linux必须）
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if (libusb_kernel_driver_active(handle, INTERFACE_NUMBER)) {
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libusb_detach_kernel_driver(handle, INTERFACE_NUMBER);
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}
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r = libusb_claim_interface(handle, INTERFACE_NUMBER);
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if (r < 0) {
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fprintf(stderr, "Failed to claim interface: %s\n", libusb_error_name(r));
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libusb_close(handle);
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libusb_exit(NULL);
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return EXIT_FAILURE;
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}
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// 发送数据（Bulk OUT）
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r = libusb_bulk_transfer(handle, BULK_EP_OUT, send_data, sizeof(send_data), &transferred, 1000);
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if (r == 0) {
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printf("Sent %d\n", transferred);
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if (transferred != sizeof(send_data)) {
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fprintf(stderr, "Warning: Only %d of %zu bytes sent\n", transferred, sizeof(send_data));
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}
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} else {
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fprintf(stderr, "Failed to send data: %s\n", libusb_error_name(r));
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}
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// 释放接口 & 关闭
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libusb_release_interface(handle, INTERFACE_NUMBER);
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libusb_close(handle);
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libusb_exit(NULL);
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return EXIT_SUCCESS;
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}
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