WhyCan Forum(哇酷开发者社区)

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <libusb-1.0/libusb.h>

#define USB_VID         0x1fc8
#define USB_PID         0x300b
#define INTERFACE_NUM   0
#define ENDPOINT_A      0x02
#define ENDPOINT_B      0x82

/* For USB communication */
#define TMOUT 500
#define LENGTH 64

libusb_device_handle *burner_hand;

void dumpit(int x, unsigned char msg[], int len)
{
    int i;

    if (len == 0)
        return;
    printf("%3d: ", x);
    for (i = 0;  i < len;  i++)
        printf("%02x ", msg[i]);
    printf("\n");
}


int start_burner()
{
    int i;
    int j;
    int ret;
    int received;
    int ok;
    unsigned char msg[LENGTH];

    if (burner_hand == NULL)
    {
        /* Initialize libusb */
        if ((ret = libusb_init(NULL)))
            return ret;

        /* Get a handle for the device */
        if ((burner_hand = libusb_open_device_with_vid_pid(NULL, USB_VID, USB_PID)) == NULL)
        {
            libusb_exit(NULL);
            return -100;
        }
        /* Detach any kernel driver */
        if ((ret = libusb_kernel_driver_active(burner_hand, 0)))
        {
            if ((ret = libusb_detach_kernel_driver(burner_hand, 0)))
            {
                stop_burner();
                return ret;
            }
        }
        /* Claim the device */
        /* Interface 0 is audio. Interface 1 is control */
        if ((ret = libusb_claim_interface(burner_hand, INTERFACE_NUM)))
        {
			printf(" 33333333333333 \n");
            stop_burner();
            return ret;
        }
    }

    memset(msg, 0, sizeof(msg));
	//0x00, 0x09, 0x00, 0x00, 0x01, 0x00, 0x03, 0xE8, 0x02, 0x00, 0x00, 0x00, 0x00, 0xEF, 0x40, 0x19
    msg[0] = 0x00;
    msg[1] = 0x09;
    msg[2] = 0x00;
    msg[3] = 0x00;
    msg[4] = 0x01;
    msg[5] = 0x00;
    msg[6] = 0x03;
    msg[7] = 0xE8;
    msg[8] = 0x02;
    msg[9] = 0x00;
    msg[10] = 0x00;
    msg[11] = 0x00;
    msg[12] = 0x00;
    msg[13] = 0xEF;
    msg[14] = 0x40;
    msg[15] = 0x19;

	if ((ok = libusb_bulk_transfer(burner_hand, ENDPOINT_A, msg, 64, &received, TMOUT)))
		exit(2);

	printf("Sent %d %d\n", ok, received);
    if ((ok = libusb_bulk_transfer(burner_hand, ENDPOINT_B, msg, LENGTH, &received, 5*TMOUT)))
        ; //exit(2);

	printf("Received %d %d\n", ok, received);
	dumpit(0, msg, received);


    return 0;
}

int stop_burner(void)
{
    int ret;

    if (burner_hand)
    {
        /* Release claimed interface */
        ret = libusb_release_interface(burner_hand, INTERFACE_NUM);
        if (ret  &&  (ret != LIBUSB_ERROR_NO_DEVICE))
        {
            /* Close opened interface */
            libusb_close(burner_hand);
            burner_hand = NULL;
            return ret;
        }

#if 0
        if (ret != LIBUSB_ERROR_NO_DEVICE)
        {
            /* Re-attach kernel driver */
            if ((ret = libusb_attach_kernel_driver(burner_hand, 0)))
                return ret;
        }
#endif

        /* Close opened interface */
        libusb_close(burner_hand);
        burner_hand = NULL;

        /* Stop using libusb */
        libusb_exit(NULL);
    }

    return 0;
}

int main(int argc, char *argv[])
{
    if (start_burner())
    {
        printf("Failed to connect to burner\n");
        exit(2);
    }

    if (stop_burner())
    {
        printf("Failed to disconnect from burner\n");
        exit(2);
    }
	else
	{
        printf("Disconnect from burner sucessful!\n");
	}
    return 0;
}