[PATCH] USB: usb gadget serial driver v2.0

This patch updates the serial gadget driver:

 - The bulk is Al Borcher's version 2.0 updates:

     * Use the new utilities to build config descriptors from tables.

     * Add CDC ACM support, which brings lots of goodness including
       interop with Windows.

     * Work better given PXA 25x hardware automagic.

 - I have a few minor tweaks.

     * Match the recent tty API change:  from_user is gone!!

     * Define new product ID for the CDC ACM version, so Windows
       registry won't get confused by the non-ACM version.

     * Add OTG descriptor

     * Allocates packet buffers more efficiently on platforms like
       OMAP: use kmalloc not the dma-coherent allocator.

Al has some docs on how to talk to Windows this, including an INF file.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/usb/gadget/Makefile

@@ -13,7 +13,7 @@ obj-$(CONFIG_USB_LH7A40X)	+= lh7a40x_udc.o
 #
 g_zero-objs			:= zero.o usbstring.o config.o epautoconf.o
 g_ether-objs			:= ether.o usbstring.o config.o epautoconf.o
-g_serial-objs			:= serial.o usbstring.o epautoconf.o
+g_serial-objs			:= serial.o usbstring.o config.o epautoconf.o
 gadgetfs-objs			:= inode.o
 g_file_storage-objs		:= file_storage.o usbstring.o config.o \
 					epautoconf.o