| /* |
| * Copyright 2012-2015 Google Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <stdio.h> |
| #include "em100.h" |
| |
| /* USB communication */ |
| |
| int send_cmd(libusb_device_handle *dev, void *data) |
| { |
| int actual; |
| int length = 16; /* haven't seen any other length yet */ |
| libusb_bulk_transfer(dev, 1 | LIBUSB_ENDPOINT_OUT, |
| data, length, &actual, BULK_SEND_TIMEOUT); |
| return (actual == length); |
| } |
| |
| int get_response(libusb_device_handle *dev, void *data, int length) |
| { |
| int actual; |
| libusb_bulk_transfer(dev, 2 | LIBUSB_ENDPOINT_IN, |
| data, length, &actual, BULK_SEND_TIMEOUT); |
| return actual; |
| } |
| |
| |
