diff --git a/cmake/xdbd_config.h.in b/cmake/xdbd_config.h.in
index 0c7dcc6..04608af 100644
--- a/cmake/xdbd_config.h.in
+++ b/cmake/xdbd_config.h.in
@@ -11,6 +11,10 @@
 #cmakedefine XDBD_CONFIG_WIN
 #cmakedefine XDBD_CONFIG_DEBUG_POOL
 
+#if !defined(XDBD_CONFIG_LINUX) && !defined(XDBD_CONFIG_OSX) && !defined(XDBD_CONFIG_WIN)
+# error "Unknow platform"
+#endif
+
 #define USB_ADB_PATH "/dev/adb/usb"
 #define USB_FFS_ADB_PATH "/dev/usb-ffs/adb/"
 
diff --git a/src/connection/usb/xdbd_connection_usb.c b/src/connection/usb/xdbd_connection_usb.c
index 7f272d1..0b8b848 100644
--- a/src/connection/usb/xdbd_connection_usb.c
+++ b/src/connection/usb/xdbd_connection_usb.c
@@ -185,7 +185,7 @@ int xdbd_open_usb_listening_sockets(xdbd_t *xdbd) {
 
 int xdbd_event_open_usb_connection(xdbd_usb_listening_t *uls) {
 
-	uls->fd_ctr = xdbd_open((char *)uls->ctr.data, 0);
+	uls->fd_ctr = xdbd_open((char *)uls->ctr.data, O_RDWR);
 	if (uls->fd_ctr < 0) {
 		bfdev_log_err("%s open failed: %m\n", uls->ctr.data);
 		return XDBD_ERR;
@@ -195,13 +195,13 @@ int xdbd_event_open_usb_connection(xdbd_usb_listening_t *uls) {
 	return usb_init_send(uls);
 #endif
 
-	uls->fd_out = xdbd_open((char *)uls->out.data, 0);
+	uls->fd_out = xdbd_open((char *)uls->out.data, O_RDWR);
 	if (uls->fd_out < 0) {
 		bfdev_log_err("%s open failed: %m\n", uls->out.data);
 		return XDBD_ERR;
 	}
 
-	uls->fd_in = xdbd_open((char *)uls->in.data, 0);
+	uls->fd_in = xdbd_open((char *)uls->in.data, O_RDWR);
 	if (uls->fd_in < 0) {
 		bfdev_log_err("%s open failed: %m\n", uls->in.data);
 		return XDBD_ERR;