send a full frame containing only zeroes instead of a zero-byte frame
[hmcfgusb] / hmcfgusb.h
1 /* HM-CFG-USB libusb-driver
2 *
3 * Copyright (c) 2013 Michael Gernoth <michael@gernoth.net>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to
7 * deal in the Software without restriction, including without limitation the
8 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
9 * sell copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 typedef int (*hmcfgusb_cb_fn)(uint8_t *buf, int buf_len, void *data);
25
26 struct hmcfgusb_dev {
27 libusb_device_handle *usb_devh;
28 struct libusb_transfer *transfer;
29 int n_usb_pfd;
30 struct pollfd *pfd;
31 int n_pfd;
32 };
33
34 int hmcfgusb_send(struct hmcfgusb_dev *usbdev, unsigned char* send_data, int len, int done);
35 int hmcfgusb_send_null_frame(struct hmcfgusb_dev *usbdev, int silent);
36 struct hmcfgusb_dev *hmcfgusb_init(hmcfgusb_cb_fn cb, void *data);
37 int hmcfgusb_add_pfd(struct hmcfgusb_dev *dev, int fd, short events);
38 int hmcfgusb_poll(struct hmcfgusb_dev *dev, int timeout);
39 void hmcfgusb_close(struct hmcfgusb_dev *dev);
40 void hmcfgusb_set_debug(int d);
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