usb: Alloc buffer for USB descriptor dynamically
The configuration descriptor includes all interface, endpoint and
auxiliary descriptors (e.g. report, union) so 512 bytes may not be enough.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/usb.h b/include/usb.h
index 55b9268..198ecbc 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -266,8 +266,9 @@
void *buffer, int transfer_len, int interval);
int usb_disable_asynch(int disable);
int usb_maxpacket(struct usb_device *dev, unsigned long pipe);
-int usb_get_configuration_no(struct usb_device *dev, unsigned char *buffer,
- int cfgno);
+int usb_get_configuration_no(struct usb_device *dev, int cfgno,
+ unsigned char *buffer, int length);
+int usb_get_configuration_len(struct usb_device *dev, int cfgno);
int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type,
unsigned char id, void *buf, int size);
int usb_get_class_descriptor(struct usb_device *dev, int ifnum,