aboutsummaryrefslogtreecommitdiff
path: root/tools/usb/usbip/README
blob: 7844490fc603dfe9dd5fd7abe2dd0d25a600eb5a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
#
# README for usbip-utils
#
# Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
#               2005-2008 Takahiro Hirofuchi

[Overview]
USB/IP protocol allows to pass USB device from server to client over the
network. Server is a machine which provides (shares) a USB device. Client is
a machine which uses USB device provided by server over the network.
The USB device may be either physical device connected to a server or
software entity created on a server using USB gadget subsystem.
Whole project consists of four parts:

    - usbip-vhci
        A client side kernel module which provides a virtual USB Host Controller
        and allows to import a USB device from a remote machine.

    - usbip-host (stub driver)
        A server side module which provides a USB device driver which can be
        bound to a physical USB device to make it exportable.

    - usbip-vudc
        A server side module which provides a virtual USB Device Controller and allows
        to export a USB device created using USB Gadget Subsystem.

    - usbip-utils
        A set of userspace tools used to handle connection and management.
        Used on both sides.

[Requirements]
    - USB/IP device drivers
        Found in the drivers/usb/usbip/ directory of the Linux kernel tree.

    - libudev >= 2.0
	libudev library

    - libwrap0-dev
	tcp wrapper library

    - gcc >= 4.0

    - libtool, automake >= 1.9, autoconf >= 2.5.0, pkg-config

[Optional]
    - hwdata
        Contains USB device identification data.


[Install]
    0. Generate configuration scripts.
	$ ./autogen.sh

    1. Compile & install the userspace utilities.
	$ ./configure [--with-tcp-wrappers=no] [--with-usbids-dir=<dir>]
	$ make install

    2. Compile & install USB/IP drivers.


[Usage]
On a server side there are two entities which can be shared.
First of them is physical usb device connected to the machine.
To make it available below steps should be executed:

    server:# (Physically attach your USB device.)

    server:# insmod usbip-core.ko
    server:# insmod usbip-host.ko

    server:# usbipd -D
	- Start usbip daemon.

    server:# usbip list -l
	- List driver assignments for USB devices.

    server:# usbip bind --busid 1-2
	- Bind usbip-host.ko to the device with busid 1-2.
	- The USB device 1-2 is now exportable to other hosts!
	- Use `usbip unbind --busid 1-2' to stop exporting the device.

Second of shareable entities is USB Gadget created using USB Gadget Subsystem
on a server machine. To make it available below steps should be executed:

    server:# (Create your USB gadget)
        - Currently the most preferable way of creating a new USB gadget
          is ConfigFS Composite Gadget. Please refer to its documentation
          for details.
        - See vudc_server_example.sh for a short example of USB gadget creation

    server:# insmod usbip-core.ko
    server:# insmod usbip-vudc.ko
        - To create more than one instance of vudc use num module param

    server:# (Bind gadget to one of available vudc)
        - Assign your new gadget to USB/IP UDC
        - Using ConfigFS interface you may do this simply by:
            server:# cd /sys/kernel/config/usb_gadget/<gadget_name>
            server:# echo "usbip-vudc.0" > UDC

    server:# usbipd -D --device
        - Start usbip daemon.

To attach new device to client machine below commands should be used:

    client:# insmod usbip-core.ko
    client:# insmod vhci-hcd.ko

    client:# usbip list --remote <host>
	- List exported USB devices on the <host>.

    client:# usbip attach --remote <host> --busid 1-2
	- Connect the remote USB device.
	- When using vudc on a server side busid is really vudc instance name.
	  For example: usbip-vudc.0

    client:# usbip port
	- Show virtual port status.

    client:# usbip detach --port <port>
	- Detach the USB device.


[Example]
---------------------------
	SERVER SIDE
---------------------------
Physically attach your USB devices to this host.

    trois:# insmod path/to/usbip-core.ko
    trois:# insmod path/to/usbip-host.ko
    trois:# usbipd -D

In another terminal, let's look up what USB devices are physically
attached to this host.

    trois:# usbip list -l
    Local USB devices
    =================
     - busid 1-1 (05a9:a511)
	     1-1:1.0 -> ov511

     - busid 3-2 (0711:0902)
	     3-2:1.0 -> none

     - busid 3-3.1 (08bb:2702)
	     3-3.1:1.0 -> snd-usb-audio
	     3-3.1:1.1 -> snd-usb-audio

     - busid 3-3.2 (04bb:0206)
	     3-3.2:1.0 -> usb-storage

     - busid 3-3 (0409:0058)
	     3-3:1.0 -> hub

     - busid 4-1 (046d:08b2)
	     4-1:1.0 -> none
	     4-1:1.1 -> none
	     4-1:1.2 -> none

     - busid 5-2 (058f:9254)
	     5-2:1.0 -> hub

A USB storage device of busid 3-3.2 is now bound to the usb-storage
driver. To export this device, we first mark the device as
"exportable"; the device is bound to the usbip-host driver. Please
remember you can not export a USB hub.

Mark the device of busid 3-3.2 as exportable:

    trois:# usbip --debug bind --busid 3-3.2
    ...
    usbip debug: usbip_bind.c:162:[unbind_other] 3-3.2:1.0 -> usb-storage
    ...
    bind device on busid 3-3.2: complete

    trois:# usbip list -l
    Local USB devices
    =================
    ...

     - busid 3-3.2 (04bb:0206)
	     3-3.2:1.0 -> usbip-host
    ...

---------------------------
	CLIENT SIDE
---------------------------
First, let's list available remote devices that are marked as
exportable on the host.

    deux:# insmod path/to/usbip-core.ko
    deux:# insmod path/to/vhci-hcd.ko

    deux:# usbip list --remote 10.0.0.3
    Exportable USB devices
    ======================
     - 10.0.0.3
	    1-1: Prolific Technology, Inc. : unknown product (067b:3507)
	       : /sys/devices/pci0000:00/0000:00:1f.2/usb1/1-1
	       : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00)
	       :  0 - Mass Storage / SCSI / Bulk (Zip) (08/06/50)

	1-2.2.1: Apple Computer, Inc. : unknown product (05ac:0203)
	       : /sys/devices/pci0000:00/0000:00:1f.2/usb1/1-2/1-2.2/1-2.2.1
	       : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00)
	       :  0 - Human Interface Devices / Boot Interface Subclass / Keyboard (03/01/01)

	1-2.2.3: OmniVision Technologies, Inc. : OV511+ WebCam (05a9:a511)
	       : /sys/devices/pci0000:00/0000:00:1f.2/usb1/1-2/1-2.2/1-2.2.3
	       : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00)
	       :  0 - Vendor Specific Class / unknown subclass / unknown protocol (ff/00/00)

	    3-1: Logitech, Inc. : QuickCam Pro 4000 (046d:08b2)
	       : /sys/devices/pci0000:00/0000:00:1e.0/0000:02:0a.0/usb3/3-1
	       : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00)
	       :  0 - Data / unknown subclass / unknown protocol (0a/ff/00)
	       :  1 - Audio / Control Device / unknown protocol (01/01/00)
	       :  2 - Audio / Streaming / unknown protocol (01/02/00)

Attach a remote USB device:

    deux:# usbip attach --remote 10.0.0.3 --busid 1-1
    port 0 attached

Show the devices attached to this client:

    deux:# usbip port
    Port 00: <Port in Use> at Full Speed(12Mbps)
	   Prolific Technology, Inc. : unknown product (067b:3507)
	   6-1 -> usbip://10.0.0.3:3240/1-1  (remote bus/dev 001/004)
	   6-1:1.0 used by usb-storage
			  /sys/class/scsi_device/0:0:0:0/device
			  /sys/class/scsi_host/host0/device
			  /sys/block/sda/device

Detach the imported device:

    deux:# usbip detach --port 0
    port 0 detached


[Checklist]
    - See 'Debug Tips' on the project wiki.
	- http://usbip.wiki.sourceforge.net/how-to-debug-usbip
    - usbip-host.ko must be bound to the target device.
	- See /sys/kernel/debug/usb/devices and find "Driver=..." lines of the device.
    - Target USB gadget must be bound to vudc
      (using USB gadget susbsys, not usbip bind command)
    - Shutdown firewall.
	- usbip now uses TCP port 3240.
    - Disable SELinux.
    - Check the kernel and daemon messages.


[Contact]
    Mailing List: linux-usb@vger.kernel.org