Add a working serial driver to usb stack. At the moment it simply echos back what it gets. You can test it on linux by

0) change relevant defines in usb_core.c
1) modprobe usbserial vendor=0x0781 product=0x7421 debug=1
2) picocom /dev/ttyUSB0
3) look at your logf screen if you build with logf support and enabled LOGF_ENABLE define in usb_serial.c
I also modified usb_core so that storage and serial both can make use the the 'usb_core'-thread. More will come :)


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15850 a1c6a512-1295-4272-9138-f99709370657

firmware/usbstack/usb_serial.h

@@ -0,0 +1,29 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id:  $
+ *
+ * Copyright (C) 2007 by Christian Gmeiner
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef USB_SERIAL_H
+#define USB_SERIAL_H
+
+#include "usb_ch9.h"
+
+void usb_serial_init(void);
+void usb_serial_transfer_complete(int endpoint);
+bool usb_serial_control_request(struct usb_ctrlrequest* req);
+
+#endif
+