usb_descriptor_fillbuf — fill buffer with descriptors
int usb_descriptor_fillbuf ( | void * buf, |
| unsigned buflen, | |
const struct usb_descriptor_header ** src); |
void * bufBuffer to be filled
unsigned buflenSize of buf
const struct usb_descriptor_header ** srcArray of descriptor pointers, terminated by null pointer.
Copies descriptors into the buffer, returning the length or a negative error code if they can't all be copied. Useful when assembling descriptors for an associated set of interfaces used as part of configuring a composite device; or in other cases where sets of descriptors need to be marshaled.