TQ2440使用2---linux下用dnw进行烧写

TQ2440使用0---linux下用dnw进行烧写
dnw.c

/* dnw2 linux main file. This depends on libusb.
 *
 * Author: Fox <[e-mail]>
 * License: GPL
 *
 */

#include <stdio.h>
#include <usb.h>
#include <errno.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

#define QQ2440_SECBULK_IDVENDOR        0x5345
#define QQ2440_SECBULK_IDPRODUCT    0x1234

struct usb_dev_handle * open_port() {
    struct usb_bus *busses, *bus;

    usb_init();
    usb_find_busses();
    usb_find_devices();

    busses = usb_get_busses();
    for (bus = busses; bus; bus = bus->next) {
        struct usb_device *dev;
        for (dev = bus->devices; dev; dev = dev->next) {
            printf("idVendor:0x%x\t,ipProduct:0x%x\n",
                    dev->descriptor.idVendor, dev->descriptor.idProduct);
            if (QQ2440_SECBULK_IDVENDOR == dev->descriptor.idVendor
                    && QQ2440_SECBULK_IDPRODUCT == dev->descriptor.idProduct) {
                printf("Target usb device found!\n");
                struct usb_dev_handle *hdev = usb_open(dev);
                if (!hdev) {
                    perror("Cannot open device");
                } else {
                    if (0 != usb_claim_interface(hdev, 0)) {
                        perror("Cannot claim interface");
                        usb_close(hdev);
                        hdev = NULL;
                    }
                }
                return hdev;
            }
        }
    }

    printf("Target usb device not found!\n");

    return NULL;
}

void usage() {
    printf("Usage: dnw2 \n\n");
}

unsigned char* prepare_write_buf(char *filename, unsigned int *len) {
    unsigned char *write_buf = NULL;
    struct stat fs;

    int fd = open(filename, O_RDONLY);
    if (-1 == fd) {
        perror("Cannot open file");
        return NULL;
    }
    if (-1 == fstat(fd, &fs)) {
        perror("Cannot get file size");
        goto error;
    }
    write_buf = (unsigned char*) malloc(fs.st_size + 10);
    if (NULL == write_buf) {
        perror("malloc failed");
        goto error;
    }

    if (fs.st_size != read(fd, write_buf + 8, fs.st_size)) {
        perror("Reading file failed");
        goto error;
    }

    printf("Filename : %s\n", filename);
    printf("Filesize : %d bytes\n", (int)fs.st_size);

    *((u_int32_t*) write_buf) = 0x30000000; //download address
    *((u_int32_t*) write_buf + 1) = fs.st_size + 10; //download size;

    *len = fs.st_size + 10;
    return write_buf;

error: if (fd != -1)
           close(fd);
       if (NULL != write_buf)
           free(write_buf);
       fs.st_size = 0;
       return NULL;

}

int main(int argc, char *argv[]) {
    if (2 != argc) {
        usage();
        return 1;
    }

    struct usb_dev_handle *hdev = open_port();
    if (!hdev) {
        return 1;
    }

    unsigned int len = 0;
    unsigned char* write_buf = prepare_write_buf(argv[1], &len);
    if (NULL == write_buf)
        return 1;

    unsigned int remain = len;
    unsigned int towrite;
    printf("Writing data ...\n");
    while (remain) {
        towrite = remain > 512 ? 512 : remain;
        if (towrite != usb_bulk_write(hdev, 0x03, write_buf + (len - remain),
                    towrite, 3000)) {
            perror("usb_bulk_write failed");
            break;
        }
        remain -= towrite;
        printf("\r%d\t %d bytes     ", (len-remain)*100/len, len-remain);
        fflush(stdout);
    }
    if (0 == remain)
        printf("Done!\n");
    return 0;
}

[转]
Makefile:

dusb:dusb.c
    gcc -g -o $@ $< -lusb
clean:
    rm -rf ./*.o dusb

如果提示找不到头文件,
fatal error: usb.h: No such file or directory
这可能是libusb库没有安装

sudo apt-get install libusb-dev