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Linux/tools/include/uapi/linux/usbdevice_fs.h

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  1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
  2 /*****************************************************************************/
  3 
  4 /*
  5  *      usbdevice_fs.h  --  USB device file system.
  6  *
  7  *      Copyright (C) 2000
  8  *          Thomas Sailer (sailer@ife.ee.ethz.ch)
  9  *
 10  *      This program is free software; you can redistribute it and/or modify
 11  *      it under the terms of the GNU General Public License as published by
 12  *      the Free Software Foundation; either version 2 of the License, or
 13  *      (at your option) any later version.
 14  *
 15  *      This program is distributed in the hope that it will be useful,
 16  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 17  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 18  *      GNU General Public License for more details.
 19  *
 20  *      You should have received a copy of the GNU General Public License
 21  *      along with this program; if not, write to the Free Software
 22  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 23  *
 24  *  History:
 25  *   0.1  04.01.2000  Created
 26  */
 27 
 28 /*****************************************************************************/
 29 
 30 #ifndef _UAPI_LINUX_USBDEVICE_FS_H
 31 #define _UAPI_LINUX_USBDEVICE_FS_H
 32 
 33 #include <linux/types.h>
 34 #include <linux/magic.h>
 35 
 36 /* --------------------------------------------------------------------- */
 37 
 38 /* usbdevfs ioctl codes */
 39 
 40 struct usbdevfs_ctrltransfer {
 41         __u8 bRequestType;
 42         __u8 bRequest;
 43         __u16 wValue;
 44         __u16 wIndex;
 45         __u16 wLength;
 46         __u32 timeout;  /* in milliseconds */
 47         void __user *data;
 48 };
 49 
 50 struct usbdevfs_bulktransfer {
 51         unsigned int ep;
 52         unsigned int len;
 53         unsigned int timeout; /* in milliseconds */
 54         void __user *data;
 55 };
 56 
 57 struct usbdevfs_setinterface {
 58         unsigned int interface;
 59         unsigned int altsetting;
 60 };
 61 
 62 struct usbdevfs_disconnectsignal {
 63         unsigned int signr;
 64         void __user *context;
 65 };
 66 
 67 #define USBDEVFS_MAXDRIVERNAME 255
 68 
 69 struct usbdevfs_getdriver {
 70         unsigned int interface;
 71         char driver[USBDEVFS_MAXDRIVERNAME + 1];
 72 };
 73 
 74 struct usbdevfs_connectinfo {
 75         unsigned int devnum;
 76         unsigned char slow;
 77 };
 78 
 79 struct usbdevfs_conninfo_ex {
 80         __u32 size;             /* Size of the structure from the kernel's */
 81                                 /* point of view. Can be used by userspace */
 82                                 /* to determine how much data can be       */
 83                                 /* used/trusted.                           */
 84         __u32 busnum;           /* USB bus number, as enumerated by the    */
 85                                 /* kernel, the device is connected to.     */
 86         __u32 devnum;           /* Device address on the bus.              */
 87         __u32 speed;            /* USB_SPEED_* constants from ch9.h        */
 88         __u8 num_ports;         /* Number of ports the device is connected */
 89                                 /* to on the way to the root hub. It may   */
 90                                 /* be bigger than size of 'ports' array so */
 91                                 /* userspace can detect overflows.         */
 92         __u8 ports[7];          /* List of ports on the way from the root  */
 93                                 /* hub to the device. Current limit in     */
 94                                 /* USB specification is 7 tiers (root hub, */
 95                                 /* 5 intermediate hubs, device), which     */
 96                                 /* gives at most 6 port entries.           */
 97 };
 98 
 99 #define USBDEVFS_URB_SHORT_NOT_OK       0x01
100 #define USBDEVFS_URB_ISO_ASAP           0x02
101 #define USBDEVFS_URB_BULK_CONTINUATION  0x04
102 #define USBDEVFS_URB_NO_FSBR            0x20    /* Not used */
103 #define USBDEVFS_URB_ZERO_PACKET        0x40
104 #define USBDEVFS_URB_NO_INTERRUPT       0x80
105 
106 #define USBDEVFS_URB_TYPE_ISO              0
107 #define USBDEVFS_URB_TYPE_INTERRUPT        1
108 #define USBDEVFS_URB_TYPE_CONTROL          2
109 #define USBDEVFS_URB_TYPE_BULK             3
110 
111 struct usbdevfs_iso_packet_desc {
112         unsigned int length;
113         unsigned int actual_length;
114         unsigned int status;
115 };
116 
117 struct usbdevfs_urb {
118         unsigned char type;
119         unsigned char endpoint;
120         int status;
121         unsigned int flags;
122         void __user *buffer;
123         int buffer_length;
124         int actual_length;
125         int start_frame;
126         union {
127                 int number_of_packets;  /* Only used for isoc urbs */
128                 unsigned int stream_id; /* Only used with bulk streams */
129         };
130         int error_count;
131         unsigned int signr;     /* signal to be sent on completion,
132                                   or 0 if none should be sent. */
133         void __user *usercontext;
134         struct usbdevfs_iso_packet_desc iso_frame_desc[0];
135 };
136 
137 /* ioctls for talking directly to drivers */
138 struct usbdevfs_ioctl {
139         int     ifno;           /* interface 0..N ; negative numbers reserved */
140         int     ioctl_code;     /* MUST encode size + direction of data so the
141                                  * macros in <asm/ioctl.h> give correct values */
142         void __user *data;      /* param buffer (in, or out) */
143 };
144 
145 /* You can do most things with hubs just through control messages,
146  * except find out what device connects to what port. */
147 struct usbdevfs_hub_portinfo {
148         char nports;            /* number of downstream ports in this hub */
149         char port [127];        /* e.g. port 3 connects to device 27 */
150 };
151 
152 /* System and bus capability flags */
153 #define USBDEVFS_CAP_ZERO_PACKET                0x01
154 #define USBDEVFS_CAP_BULK_CONTINUATION          0x02
155 #define USBDEVFS_CAP_NO_PACKET_SIZE_LIM         0x04
156 #define USBDEVFS_CAP_BULK_SCATTER_GATHER        0x08
157 #define USBDEVFS_CAP_REAP_AFTER_DISCONNECT      0x10
158 #define USBDEVFS_CAP_MMAP                       0x20
159 #define USBDEVFS_CAP_DROP_PRIVILEGES            0x40
160 #define USBDEVFS_CAP_CONNINFO_EX                0x80
161 
162 /* USBDEVFS_DISCONNECT_CLAIM flags & struct */
163 
164 /* disconnect-and-claim if the driver matches the driver field */
165 #define USBDEVFS_DISCONNECT_CLAIM_IF_DRIVER     0x01
166 /* disconnect-and-claim except when the driver matches the driver field */
167 #define USBDEVFS_DISCONNECT_CLAIM_EXCEPT_DRIVER 0x02
168 
169 struct usbdevfs_disconnect_claim {
170         unsigned int interface;
171         unsigned int flags;
172         char driver[USBDEVFS_MAXDRIVERNAME + 1];
173 };
174 
175 struct usbdevfs_streams {
176         unsigned int num_streams; /* Not used by USBDEVFS_FREE_STREAMS */
177         unsigned int num_eps;
178         unsigned char eps[0];
179 };
180 
181 /*
182  * USB_SPEED_* values returned by USBDEVFS_GET_SPEED are defined in
183  * linux/usb/ch9.h
184  */
185 
186 #define USBDEVFS_CONTROL           _IOWR('U', 0, struct usbdevfs_ctrltransfer)
187 #define USBDEVFS_CONTROL32           _IOWR('U', 0, struct usbdevfs_ctrltransfer32)
188 #define USBDEVFS_BULK              _IOWR('U', 2, struct usbdevfs_bulktransfer)
189 #define USBDEVFS_BULK32              _IOWR('U', 2, struct usbdevfs_bulktransfer32)
190 #define USBDEVFS_RESETEP           _IOR('U', 3, unsigned int)
191 #define USBDEVFS_SETINTERFACE      _IOR('U', 4, struct usbdevfs_setinterface)
192 #define USBDEVFS_SETCONFIGURATION  _IOR('U', 5, unsigned int)
193 #define USBDEVFS_GETDRIVER         _IOW('U', 8, struct usbdevfs_getdriver)
194 #define USBDEVFS_SUBMITURB         _IOR('U', 10, struct usbdevfs_urb)
195 #define USBDEVFS_SUBMITURB32       _IOR('U', 10, struct usbdevfs_urb32)
196 #define USBDEVFS_DISCARDURB        _IO('U', 11)
197 #define USBDEVFS_REAPURB           _IOW('U', 12, void *)
198 #define USBDEVFS_REAPURB32         _IOW('U', 12, __u32)
199 #define USBDEVFS_REAPURBNDELAY     _IOW('U', 13, void *)
200 #define USBDEVFS_REAPURBNDELAY32   _IOW('U', 13, __u32)
201 #define USBDEVFS_DISCSIGNAL        _IOR('U', 14, struct usbdevfs_disconnectsignal)
202 #define USBDEVFS_DISCSIGNAL32      _IOR('U', 14, struct usbdevfs_disconnectsignal32)
203 #define USBDEVFS_CLAIMINTERFACE    _IOR('U', 15, unsigned int)
204 #define USBDEVFS_RELEASEINTERFACE  _IOR('U', 16, unsigned int)
205 #define USBDEVFS_CONNECTINFO       _IOW('U', 17, struct usbdevfs_connectinfo)
206 #define USBDEVFS_IOCTL             _IOWR('U', 18, struct usbdevfs_ioctl)
207 #define USBDEVFS_IOCTL32           _IOWR('U', 18, struct usbdevfs_ioctl32)
208 #define USBDEVFS_HUB_PORTINFO      _IOR('U', 19, struct usbdevfs_hub_portinfo)
209 #define USBDEVFS_RESET             _IO('U', 20)
210 #define USBDEVFS_CLEAR_HALT        _IOR('U', 21, unsigned int)
211 #define USBDEVFS_DISCONNECT        _IO('U', 22)
212 #define USBDEVFS_CONNECT           _IO('U', 23)
213 #define USBDEVFS_CLAIM_PORT        _IOR('U', 24, unsigned int)
214 #define USBDEVFS_RELEASE_PORT      _IOR('U', 25, unsigned int)
215 #define USBDEVFS_GET_CAPABILITIES  _IOR('U', 26, __u32)
216 #define USBDEVFS_DISCONNECT_CLAIM  _IOR('U', 27, struct usbdevfs_disconnect_claim)
217 #define USBDEVFS_ALLOC_STREAMS     _IOR('U', 28, struct usbdevfs_streams)
218 #define USBDEVFS_FREE_STREAMS      _IOR('U', 29, struct usbdevfs_streams)
219 #define USBDEVFS_DROP_PRIVILEGES   _IOW('U', 30, __u32)
220 #define USBDEVFS_GET_SPEED         _IO('U', 31)
221 /*
222  * Returns struct usbdevfs_conninfo_ex; length is variable to allow
223  * extending size of the data returned.
224  */
225 #define USBDEVFS_CONNINFO_EX(len)  _IOC(_IOC_READ, 'U', 32, len)
226 
227 #endif /* _UAPI_LINUX_USBDEVICE_FS_H */
228 

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