ubuntu在线安装libusb

• 在线安装命令

• 1.安装命令： Ubuntu 测试 其他linux应该是一样的
   
  sudo apt-get install libusb-1.0-0-dev
  sudo apt-get install libusb-dev

   

• 编译命令

•  
  libusb库 1.23 之前(应该是的 1.23之前没有做测试)
  例1.gcc -o main main.c -lusb
  libusb库 1.23 之后
  例2.gcc -o main main.c -lusb-1.0

   

• 问题及测试程序 点击访问

• #include <stdio.h>
  #include <string.h>
  #include <stdlib.h>
  #include <unistd.h>
  #include <libusb-1.0/libusb.h>
  #include <stdio.h>
  #include <sys/types.h>
  
  static void print_devs(libusb_device **devs)
  {
  
  	libusb_device *dev;
  	int i = 0;
  	while ((dev = devs[i++]) != NULL) {
  		struct libusb_device_descriptor desc;
  		int r = libusb_get_device_descriptor(dev, &desc);
  		if (r < 0) {
  			fprintf(stderr, "failed to get device descriptor");
  			return;
  		}
                  	printf("%04x:%04x (bus %d, device %d)\n",
  			desc.idVendor, desc.idProduct,
  			libusb_get_bus_number(dev), libusb_get_device_address(dev));
  	}
  }
  
  int main(void)
  {
  	libusb_device **devs;
  	int r;
  	ssize_t cnt; 
  	r = libusb_init(NULL);
  	if (r < 0)
  		return r;
  	cnt = libusb_get_device_list(NULL, &devs);
  	if (cnt < 0)
  		return (int) cnt;
  	print_devs(devs);
  	libusb_free_device_list(devs, 1);
  	libusb_exit(NULL);
  	return 0;
  
  }

   

   

标签：在线,get,dev,devs,libusb,ubuntu,device,include
来源： https://blog.csdn.net/Britripe/article/details/110110165