Add libusb and libuvc

[rtmpclient.git] / app / src / main / jni / libusb-1.0.22 / examples / listdevs.c

diff --git a/app/src/main/jni/libusb-1.0.22/examples/listdevs.c b/app/src/main/jni/libusb-1.0.22/examples/listdevs.c
new file mode 100644 (file)
index 0000000..3328910
--- /dev/null
+++ b/app/src/main/jni/libusb-1.0.22/examples/listdevs.c
@@ -0,0 +1,71 @@
+/*
+ * libusb example program to list devices on the bus
+ * Copyright © 2007 Daniel Drake <dsd@gentoo.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; 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"
+
+static void print_devs(libusb_device **devs)
+{
+       libusb_device *dev;
+       int i = 0, j = 0;
+       uint8_t path[8]; 
+
+       while ((dev = devs[i++]) != NULL) {
+               struct libusb_device_descriptor desc;
+               int r = libusb_get_device_descriptor(dev, &desc);
+               if (r < 0) {
+                       fprintf(stderr, "failed to get device descriptor");
+                       return;
+               }
+
+               printf("%04x:%04x (bus %d, device %d)",
+                       desc.idVendor, desc.idProduct,
+                       libusb_get_bus_number(dev), libusb_get_device_address(dev));
+
+               r = libusb_get_port_numbers(dev, path, sizeof(path));
+               if (r > 0) {
+                       printf(" path: %d", path[0]);
+                       for (j = 1; j < r; j++)
+                               printf(".%d", path[j]);
+               }
+               printf("\n");
+       }
+}
+
+int main(void)
+{
+       libusb_device **devs;
+       int r;
+       ssize_t cnt;
+
+       r = libusb_init(NULL);
+       if (r < 0)
+               return r;
+
+       cnt = libusb_get_device_list(NULL, &devs);
+       if (cnt < 0)
+               return (int) cnt;
+
+       print_devs(devs);
+       libusb_free_device_list(devs, 1);
+
+       libusb_exit(NULL);
+       return 0;
+}