<commit_before>/*
 * <linux/usb/gadget.h>
 *
 * We call the USB code inside a Linux-based peripheral device a "gadget"
 * driver, except for the hardware-specific bus glue.  One USB host can
 * master many USB gadgets, but the gadgets are only slaved to one host.
 *
 *
 * (C) Copyright 2002-2004 by <NAME>
 * All Rights Reserved.
 *
 * This software is licensed under the GNU GPL version 2.
 */

#ifndef __LINUX_USB_GADGET_H
#define __LINUX_USB_GADGET_H

#include <linux/slab.h>
#include <linux/usb/ch9.h>

struct usb_ep;

/**
 * struct usb_request - describes one i/o request
 * @buf: Buffer used for data.  Always provide this; some controllers
 *	only use PIO, or don't use DMA for some endpoints.
 * @dma: DMA address corresponding to 'buf'.  If you don't set this
 *	field, and the usb controller needs one, it is responsible
 *	for mapping and unmapping the buffer.
 * @length: Length of that data
 * @stream_id: The stream id, when USB3.0 bulk streams are being used
 * @no_interrupt: If true, hints that no completion irq is needed.
 *	Helpful sometimes with deep request queues that are handled
 *	directly by DMA controllers.
 * @zero: If true, when writing data, makes the last packet be "short"
 *     by adding a zero length packet as needed;
 * @short_not_ok: When reading data, makes short packets be
 *     treated as errors (queue stops advancing till cleanup).
 * @complete: Function called when request completes, so this request and
 *	its buffer may be re-used.  The function will always be called with
 *	interrupts disabled, and it must not sleep.
 *	Reads terminate with a short packet, or when the buffer fills,
 *	whichever comes first.  When writes terminate, some data bytes
 *	will usually still be in flight (often in a hardware fifo).
 *	Errors (for reads or writes) stop the queue from advancing
 *	until the completion function returns, so that any transfers
 *	invalidated by the error may first be dequeued.<commit_msg>usb: gadget: add missing #include's<commit_after>/*
 * <linux/usb/gadget.h>
 *
 * We call the USB code inside a Linux-based peripheral device a "gadget"
 * driver, except for the hardware-specific bus glue.  One USB host can
 * master many USB gadgets, but the gadgets are only slaved to one host.
 *
 *
 * (C) Copyright 2002-2004 by <NAME>
 * All Rights Reserved.
 *
 * This software is licensed under the GNU GPL version 2.
 */

#ifndef __LINUX_USB_GADGET_H
#define __LINUX_USB_GADGET_H

#include <linux/device.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/usb/ch9.h>

struct usb_ep;

/**
 * struct usb_request - describes one i/o request
 * @buf: Buffer used for data.  Always provide this; some controllers
 *	only use PIO, or don't use DMA for some endpoints.
 * @dma: DMA address corresponding to 'buf'.  If you don't set this
 *	field, and the usb controller needs one, it is responsible
 *	for mapping and unmapping the buffer.
 * @length: Length of that data
 * @stream_id: The stream id, when USB3.0 bulk streams are being used
 * @no_interrupt: If true, hints that no completion irq is needed.
 *	Helpful sometimes with deep request queues that are handled
 *	directly by DMA controllers.
 * @zero: If true, when writing data, makes the last packet be "short"
 *     by adding a zero length packet as needed;
 * @short_not_ok: When reading data, makes short packets be
 *     treated as errors (queue stops advancing till cleanup).
 * @complete: Function called when request completes, so this request and
 *	its buffer may be re-used.  The function will always be called with
 *	interrupts disabled, and it must not sleep.
 *	Reads terminate with a short packet, or when the buffer fills,
 *	whichever comes first.  When writes terminate, some data bytes
 *	will usually still be in flight (often in a hardware fifo).
 *	Errors (for reads or writes) stop the queue from advancing
 *	until the completion function returns, so that any transfers
 *	invalidated by the error may first be dequeued.
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