usb_info
usb_info(usbatm, "loading firmware\n");
usb_info(usbatm, "loading boot ROM patch\n");
usb_info(usbatm, "starting device\n");
usb_info(usbatm, "found firmware %s\n", buf);
usb_info(usbatm, "found stage %d firmware %s\n", phase, buf);
usb_info(usbatm, "isochronous transfer not supported - using bulk\n");