centos man page for usb_descriptor_fillbuf

USB_DESCRIPTOR_FILLB(9) 				      Kernel Mode Gadget API					   USB_DESCRIPTOR_FILLB(9)

NAME
       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@users.sourceforge.net>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   USB_DESCRIPTOR_FILLB(9)