config root man

/* $FreeBSD: release/9.1.0/sys/dev/usb/usb_error.c 217265 2011-01-11 13:59:06Z jhb $ */
/*-
 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>

#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>

static const char* usb_errstr_table[USB_ERR_MAX] = {
	[USB_ERR_NORMAL_COMPLETION]	= "USB_ERR_NORMAL_COMPLETION",
	[USB_ERR_PENDING_REQUESTS]	= "USB_ERR_PENDING_REQUESTS",
	[USB_ERR_NOT_STARTED]		= "USB_ERR_NOT_STARTED",
	[USB_ERR_INVAL]			= "USB_ERR_INVAL",
	[USB_ERR_NOMEM]			= "USB_ERR_NOMEM",
	[USB_ERR_CANCELLED]		= "USB_ERR_CANCELLED",
	[USB_ERR_BAD_ADDRESS]		= "USB_ERR_BAD_ADDRESS",
	[USB_ERR_BAD_BUFSIZE]		= "USB_ERR_BAD_BUFSIZE",
	[USB_ERR_BAD_FLAG]		= "USB_ERR_BAD_FLAG",
	[USB_ERR_NO_CALLBACK]		= "USB_ERR_NO_CALLBACK",
	[USB_ERR_IN_USE]		= "USB_ERR_IN_USE",
	[USB_ERR_NO_ADDR]		= "USB_ERR_NO_ADDR",
	[USB_ERR_NO_PIPE]		= "USB_ERR_NO_PIPE",
	[USB_ERR_ZERO_NFRAMES]		= "USB_ERR_ZERO_NFRAMES",
	[USB_ERR_ZERO_MAXP]		= "USB_ERR_ZERO_MAXP",
	[USB_ERR_SET_ADDR_FAILED]	= "USB_ERR_SET_ADDR_FAILED",
	[USB_ERR_NO_POWER]		= "USB_ERR_NO_POWER",
	[USB_ERR_TOO_DEEP]		= "USB_ERR_TOO_DEEP",
	[USB_ERR_IOERROR]		= "USB_ERR_IOERROR",
	[USB_ERR_NOT_CONFIGURED]	= "USB_ERR_NOT_CONFIGURED",
	[USB_ERR_TIMEOUT]		= "USB_ERR_TIMEOUT",
	[USB_ERR_SHORT_XFER]		= "USB_ERR_SHORT_XFER",
	[USB_ERR_STALLED]		= "USB_ERR_STALLED",
	[USB_ERR_INTERRUPTED]		= "USB_ERR_INTERRUPTED",
	[USB_ERR_DMA_LOAD_FAILED]	= "USB_ERR_DMA_LOAD_FAILED",
	[USB_ERR_BAD_CONTEXT]		= "USB_ERR_BAD_CONTEXT",
	[USB_ERR_NO_ROOT_HUB]		= "USB_ERR_NO_ROOT_HUB",
	[USB_ERR_NO_INTR_THREAD]	= "USB_ERR_NO_INTR_THREAD",
	[USB_ERR_NOT_LOCKED]		= "USB_ERR_NOT_LOCKED",
};

/*------------------------------------------------------------------------*
 *	usbd_errstr
 *
 * This function converts an USB error code into a string.
 *------------------------------------------------------------------------*/
const char *
usbd_errstr(usb_error_t err)
{
	return (err < USB_ERR_MAX ? usb_errstr_table[err] : "USB_ERR_UNKNOWN");
}