usb_descriptor_fillbuf (9) Linux Manual Page
usb_descriptor_fillbuf – fill buffer with descriptors
Synopsis
int usb_descriptor_fillbuf(void *buf, unsigned buflen, const struct usb_descriptor_header **src);Arguments
buf
-
- Buffer to be filled
buflen
- Size of buf
src
- Array of descriptor pointers, terminated by null pointer.
Description
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.
Author
David Brownell <dbrownell [at] users.sourceforge.net>
- Author.