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usb: Alloc buffer for USB descriptor dynamically

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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>
This commit is contained in:
Stefan Brüns 2015-12-22 01:18:13 +01:00 • committed by Marek Vasut
parent 78680314c5
commit c75f57fba4
2 changed files with 31 additions and 16 deletions
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5
include/usb.h
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@ -266,8 +266,9 @@ int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe,
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,