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// ======================================================================
// JVdG USB Gadget libusb test program
//
// Copyright 2011 Julien Viard de Galbert
//
// 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; either version 2
// of the License, or (at your option) any later version.
//
// 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.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
// MA 02110-1301, USA.
// ======================================================================
#include <stdio.h>
#include <libusb.h>
enum
{
// Generic requests
USBTINY_ECHO, // echo test
USBTINY_READ, // read byte
USBTINY_WRITE, // write byte
USBTINY_CLR, // clear bit
USBTINY_SET, // set bit
//
USBTINY_KEY_READ // read key status
};
#define USB_TIMEOUT 500
libusb_device_handle * usb_device;
int main(int argc, char ** argv)
{
libusb_init(NULL);
printf("USB gadget test program (c) 2010 Julien VdG\n");
usb_device = libusb_open_device_with_vid_pid (NULL, 0x6666, 0x0001);
if(NULL == usb_device) {
fprintf(stderr, "ERROR: USB device not found !\n");
libusb_exit(NULL);
return 2;
}
{
unsigned char res[4];
int st;
st = libusb_control_transfer(usb_device,
LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE,
USBTINY_READ,
0,
0,
res,
1,
USB_TIMEOUT);
printf("Read LEDs: %x (%d)\n",res[0], st);
st = libusb_control_transfer(usb_device,
LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE,
USBTINY_WRITE,
0xf & (res[0]+1),
1,
NULL,
0,
USB_TIMEOUT);
st = libusb_control_transfer(usb_device,
LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE,
USBTINY_KEY_READ,
0,
0,
res,
1,
USB_TIMEOUT);
printf("Read Keys: %x (%d)\n",res[0], st);
}
libusb_close(usb_device);
libusb_exit(NULL);
return 0;
}
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