'\" t
.\"     Title: usb_descriptor_fillbuf
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: March 2017
.\"    Manual: Kernel Mode Gadget API
.\"    Source: Kernel Hackers Manual 4.10.7
.\"  Language: English
.\"
.TH "USB_DESCRIPTOR_FILLB" "9" "March 2017" "Kernel Hackers Manual 4\&.10\&" "Kernel Mode Gadget API"
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.SH "NAME"
usb_descriptor_fillbuf \- fill buffer with descriptors
.SH "SYNOPSIS"
.HP \w'int\ usb_descriptor_fillbuf('u
.BI "int usb_descriptor_fillbuf(void\ *\ " "buf" ", unsigned\ " "buflen" ", const\ struct\ usb_descriptor_header\ **\ " "src" ");"
.SH "ARGUMENTS"
.PP
\fIbuf\fR
.RS 4
Buffer to be filled
.RE
.PP
\fIbuflen\fR
.RS 4
Size of buf
.RE
.PP
\fIsrc\fR
.RS 4
Array of descriptor pointers, terminated by null pointer\&.
.RE
.SH "DESCRIPTION"
.PP
Copies descriptors into the buffer, returning the length or a negative error code if they can\*(Aqt 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\&.
.SH "AUTHOR"
.PP
\fBDavid Brownell\fR <\&dbrownell@users.sourceforge.net\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br