s3c2410_usb_set_power
s3c2410_usb_set_power(info, wIndex, 1);
s3c2410_usb_set_power(info, wIndex, 0);
s3c2410_usb_set_power(info, portno+1, 0);
s3c2410_usb_set_power(info, 1, 1);
s3c2410_usb_set_power(info, 2, 1);