Fixed bug #405.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5635 35acf78f-673a-0410-8e92-d51de3d6d3f4

readme.txt

@@ -89,6 +89,7 @@
 *****************************************************************************
 
 *** 2.5.2 ***
+- FIX: Fixed USB driver cannot be stopped (bug #405)(backported to 2.4.4).
 - FIX: Fixed several spelling errors (bug #404).
 - FIX: Fixed serial port in STM32F3 discovery test case (bug #402).
 - FIX: Fixed add %i to chprintf (bug #401).

testhal/STM32F4xx/USB_CDC/main.c

@@ -476,6 +476,10 @@ int main(void) {
   usbStart(serusbcfg.usbp, &usbcfg);
   usbConnectBus(serusbcfg.usbp);
 
+  /*
+   * Stopping and restarting the USB in order to test the stop procedure. The
+   * following lines are not usually required.
+   */
   chThdSleepMilliseconds(3000);
   usbDisconnectBus(serusbcfg.usbp);
   usbStop(serusbcfg.usbp);