xusb: add check for interface kernel driver

This commit adds a call to libusb_kernel_driver_active and prints out the result. This
provides a way to quickly check the result when testing.

Signed-off-by: Nathan Hjelm <hjelmn@google.com>

examples/xusb.c

diff --git a/examples/xusb.c b/examples/xusb.c
index bf328fe..61ce4dd 100644
--- a/examples/xusb.c
+++ b/examples/xusb.c
@@ -914,6 +914,8 @@
 	libusb_set_auto_detach_kernel_driver(handle, 1);
 	for (iface = 0; iface < nb_ifaces; iface++)
 	{
+		int ret = libusb_kernel_driver_active(handle, iface);
+		printf("\nKernel driver attached for interface %d: %d\n", iface, ret);
 		printf("\nClaiming interface %d...\n", iface);
 		r = libusb_claim_interface(handle, iface);
 		if (r != LIBUSB_SUCCESS) {

libusb/version_nano.h

diff --git a/libusb/version_nano.h b/libusb/version_nano.h
index fa21711..374ee65 100644
--- a/libusb/version_nano.h
+++ b/libusb/version_nano.h
@@ -1 +1 @@
-#define LIBUSB_NANO 11641
+#define LIBUSB_NANO 11642