/*
 * This module implements the elementary function for reading the EEPROM
 * content out of a CP2102 device.
 */

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <usb.h>
#include "cp210x_defs.h"

extern u_char eeprom[SIZE_EEPROM];

void
read_eeprom(usbh)
	usb_dev_handle *usbh;
{
	int rc;

	rc = usb_control_msg(usbh, DEVICE_IN_REQTYPE, CP210x_CONFIG,
			     REG_EEPROM, 0, (char *) eeprom, SIZE_EEPROM,
			     USB_READ_TIMEOUT);
	if (rc != SIZE_EEPROM) {
		fprintf(stderr,
			"EEPROM read error: usb_control_msg() returned %d\n",
			rc);
		exit(1);
	}
}