- reduced memory requirements a lot (from >100kb/controller to

560bytes/controller)
- no need for the client of libpayload to implement
  usbdisk_{create,remove}, just because USB was compiled in.
- usb hub support compiles, and works for some trivial cases (no device
  detach, trivial power management)
- usb keyboard support works in qemu, though there are reports that it
  doesn't work on real hardware yet.
- usb keyboard is integrated in both libc-getchar() and curses, if
  CONFIG_USB_HID is enabled

Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3662 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

payloads/libpayload/include/usb/usbdisk.h

@@ -38,7 +38,7 @@
  *
  * @param dev descriptor for the USB storage device
  */
-void usbdisk_create (usbdev_t *dev);
+void __attribute__((weak)) usbdisk_create (usbdev_t *dev);
 
 /**
  * To be implemented by libpayload-client. It's called by the USB stack
@@ -46,6 +46,6 @@ void usbdisk_create (usbdev_t *dev);
  *
  * @param dev descriptor for the USB storage device
  */
-void usbdisk_remove (usbdev_t *dev);
+void __attribute__((weak)) usbdisk_remove (usbdev_t *dev);
 
 #endif