usb_get_string_simple

/* main.c */

#include <stdio.h>
#include <string.h>
#include <usb.h>
#include "myusbfunctions.h"

#define BREAK_HERE raise(SIGINT)

char version[] = "This is my string";
struct usb_device *curr_dev;
struct usb_dev_handle *curr_udev;
int	timeout = 2200;

#define	buflen	64
char buffer[buflen];

int main(void)
{
int i;

i=explore();										/* nr of matches */
if (0==i)
	{
	printf("No chip was found\n");
	exit(0);
	}
else
	{
	if (i>1)
		{
		printf("Confict: more than one chip was found\n");
		exit(0);
		}
	}
printf("%s\n", version);
//BREAK_HERE;
//i = usb_interrupt_read(curr_udev, curr_dev->config->interface->altsetting->endpoint->bEndpointAddress, buffer, curr_dev->config->interface->altsetting->endpoint->wMaxPacketSize, timeout);

	i=usb_interrupt_read(curr_udev, 0x81, buffer, 64, 2200);
	printf("i=%d\n",i);

usb_close (curr_udev);
return 0;
}
/* eof main.c */

-------------------------------------------------------------------------

/* myusbfunctions.h */
extern struct usb_device *curr_dev;
extern struct usb_dev_handle *curr_udev;
extern int usb_interrupt_read(usb_dev_handle *dev, int ep, char *bytes, int size, int timeout);

int explore (void)
{
struct usb_bus *bus;
struct usb_device *dev;
extern char version[];
int nr=0 ;

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

for (bus = usb_busses; bus; bus = bus->next)
	{
	for (dev = bus->devices; dev; dev = dev->next)
		{
		int ret;
		char string[256];
		usb_dev_handle *udev;

		udev = usb_open(dev);
		if (udev)
			{
			if (dev->descriptor.iManufacturer)
				{
				ret = usb_get_string_simple(udev, dev->descriptor.iManufacturer, string, sizeof(string));
				}

			if (dev->descriptor.iProduct)
				{
				ret = usb_get_string_simple(udev, dev->descriptor.iProduct, string, sizeof(string));
				if (ret > 0)
					{
					if (0==strcmp(version,string))	/* match */
						{
						curr_dev = dev;	/* copy device */
						nr++;
						}
					}
				}
			usb_close (udev);
			}
		}
	}
if (nr == 1)
	{
	curr_udev = usb_open(curr_dev);
	}
return nr;
}

/* eof myusbfunctions.h */