usb_descriptor_fillbuf (9) - Linux Manuals
usb_descriptor_fillbuf: fill buffer with descriptors
NAME
usb_descriptor_fillbuf - fill buffer with descriptors
SYNOPSIS
-
int usb_descriptor_fillbuf(void
* buf, unsignedbuflen, 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.
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