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422 giacomo 1
/*****************************************************************************/
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/*
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 *      usbdevice_fs.h  --  USB device file system.
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 *
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 *      Copyright (C) 2000
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 *          Thomas Sailer (sailer@ife.ee.ethz.ch)
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 *
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 *      This program is free software; you can redistribute it and/or modify
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 *      it under the terms of the GNU General Public License as published by
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 *      the Free Software Foundation; either version 2 of the License, or
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 *      (at your option) any later version.
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 *
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 *      This program is distributed in the hope that it will be useful,
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 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *      GNU General Public License for more details.
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 *
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 *      You should have received a copy of the GNU General Public License
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 *      along with this program; if not, write to the Free Software
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 *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 *
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 *  History:
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 *   0.1  04.01.2000  Created
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 *
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 *  $Id: usbdevice_fs.h,v 1.1 2004-01-28 15:26:57 giacomo Exp $
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 */
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/*****************************************************************************/
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#ifndef _LINUX_USBDEVICE_FS_H
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#define _LINUX_USBDEVICE_FS_H
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#include <linux/types.h>
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/* --------------------------------------------------------------------- */
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#define USBDEVICE_SUPER_MAGIC 0x9fa2
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/* usbdevfs ioctl codes */
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struct usbdevfs_ctrltransfer {
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        __u8 bRequestType;
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        __u8 bRequest;
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        __u16 wValue;
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        __u16 wIndex;
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        __u16 wLength;
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        __u32 timeout;  /* in milliseconds */
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        void __user *data;
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};
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struct usbdevfs_bulktransfer {
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        unsigned int ep;
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        unsigned int len;
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        unsigned int timeout; /* in milliseconds */
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        void __user *data;
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};
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struct usbdevfs_setinterface {
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        unsigned int interface;
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        unsigned int altsetting;
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};
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struct usbdevfs_disconnectsignal {
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        unsigned int signr;
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        void *context;
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};
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#define USBDEVFS_MAXDRIVERNAME 255
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struct usbdevfs_getdriver {
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        unsigned int interface;
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        char driver[USBDEVFS_MAXDRIVERNAME + 1];
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};
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struct usbdevfs_connectinfo {
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        unsigned int devnum;
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        unsigned char slow;
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};
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#define USBDEVFS_URB_SHORT_NOT_OK          1
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#define USBDEVFS_URB_ISO_ASAP              2
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#define USBDEVFS_URB_TYPE_ISO              0
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#define USBDEVFS_URB_TYPE_INTERRUPT        1
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#define USBDEVFS_URB_TYPE_CONTROL          2
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#define USBDEVFS_URB_TYPE_BULK             3
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struct usbdevfs_iso_packet_desc {
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        unsigned int length;
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        unsigned int actual_length;
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        unsigned int status;
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};
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struct usbdevfs_urb {
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        unsigned char type;
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        unsigned char endpoint;
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        int status;
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        unsigned int flags;
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        void __user *buffer;
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        int buffer_length;
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        int actual_length;
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        int start_frame;
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        int number_of_packets;
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        int error_count;
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        unsigned int signr;  /* signal to be sent on error, -1 if none should be sent */
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        void *usercontext;
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        struct usbdevfs_iso_packet_desc iso_frame_desc[0];
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};
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/* ioctls for talking directly to drivers */
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struct usbdevfs_ioctl {
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        int     ifno;           /* interface 0..N ; negative numbers reserved */
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        int     ioctl_code;     /* MUST encode size + direction of data so the
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                                 * macros in <asm/ioctl.h> give correct values */
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        void __user *data;      /* param buffer (in, or out) */
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};
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/* You can do most things with hubs just through control messages,
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 * except find out what device connects to what port. */
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struct usbdevfs_hub_portinfo {
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        char nports;            /* number of downstream ports in this hub */
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        char port [127];        /* e.g. port 3 connects to device 27 */
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};
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#define USBDEVFS_CONTROL           _IOWR('U', 0, struct usbdevfs_ctrltransfer)
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#define USBDEVFS_BULK              _IOWR('U', 2, struct usbdevfs_bulktransfer)
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#define USBDEVFS_RESETEP           _IOR('U', 3, unsigned int)
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#define USBDEVFS_SETINTERFACE      _IOR('U', 4, struct usbdevfs_setinterface)
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#define USBDEVFS_SETCONFIGURATION  _IOR('U', 5, unsigned int)
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#define USBDEVFS_GETDRIVER         _IOW('U', 8, struct usbdevfs_getdriver)
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#define USBDEVFS_SUBMITURB         _IOR('U', 10, struct usbdevfs_urb)
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#define USBDEVFS_DISCARDURB        _IO('U', 11)
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#define USBDEVFS_REAPURB           _IOW('U', 12, void *)
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#define USBDEVFS_REAPURBNDELAY     _IOW('U', 13, void *)
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#define USBDEVFS_DISCSIGNAL        _IOR('U', 14, struct usbdevfs_disconnectsignal)
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#define USBDEVFS_CLAIMINTERFACE    _IOR('U', 15, unsigned int)
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#define USBDEVFS_RELEASEINTERFACE  _IOR('U', 16, unsigned int)
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#define USBDEVFS_CONNECTINFO       _IOW('U', 17, struct usbdevfs_connectinfo)
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#define USBDEVFS_IOCTL             _IOWR('U', 18, struct usbdevfs_ioctl)
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#define USBDEVFS_HUB_PORTINFO      _IOR('U', 19, struct usbdevfs_hub_portinfo)
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#define USBDEVFS_RESET             _IO('U', 20)
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#define USBDEVFS_CLEAR_HALT        _IOR('U', 21, unsigned int)
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#define USBDEVFS_DISCONNECT        _IO('U', 22)
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#define USBDEVFS_CONNECT           _IO('U', 23)
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/* --------------------------------------------------------------------- */
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#ifdef __KERNEL__
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#include <linux/list.h>
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#include <asm/semaphore.h>
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struct dev_state {
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        struct list_head list;      /* state list */
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        struct rw_semaphore devsem; /* protects modifications to dev (dev == NULL indicating disconnect) */
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        struct usb_device *dev;
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        struct file *file;
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        spinlock_t lock;            /* protects the async urb lists */
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        struct list_head async_pending;
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        struct list_head async_completed;
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        wait_queue_head_t wait;     /* wake up if a request completed */
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        unsigned int discsignr;
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        struct task_struct *disctask;
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        void *disccontext;
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        unsigned long ifclaimed;
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};
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/* internal methods & data */
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extern struct usb_driver usbdevfs_driver;
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extern struct file_operations usbdevfs_drivers_fops;
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extern struct file_operations usbdevfs_devices_fops;
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extern struct file_operations usbdevfs_device_file_operations;
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extern struct inode_operations usbdevfs_device_inode_operations;
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extern struct inode_operations usbdevfs_bus_inode_operations;
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extern struct file_operations usbdevfs_bus_file_operations;
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extern void usbdevfs_conn_disc_event(void);
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#endif /* __KERNEL__ */
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/* --------------------------------------------------------------------- */
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#endif /* _LINUX_USBDEVICE_FS_H */