root / hw / usb-bus.c @ ef816d83
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1 | 806b6024 | Gerd Hoffmann | #include "hw.h" |
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2 | 806b6024 | Gerd Hoffmann | #include "usb.h" |
3 | 806b6024 | Gerd Hoffmann | #include "qdev.h" |
4 | a5d2f727 | Gerd Hoffmann | #include "sysemu.h" |
5 | a5d2f727 | Gerd Hoffmann | #include "monitor.h" |
6 | a5d2f727 | Gerd Hoffmann | |
7 | a5d2f727 | Gerd Hoffmann | static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent); |
8 | 806b6024 | Gerd Hoffmann | |
9 | 806b6024 | Gerd Hoffmann | static struct BusInfo usb_bus_info = { |
10 | a5d2f727 | Gerd Hoffmann | .name = "USB",
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11 | a5d2f727 | Gerd Hoffmann | .size = sizeof(USBBus),
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12 | a5d2f727 | Gerd Hoffmann | .print_dev = usb_bus_dev_print, |
13 | 806b6024 | Gerd Hoffmann | }; |
14 | 806b6024 | Gerd Hoffmann | static int next_usb_bus = 0; |
15 | 72cf2d4f | Blue Swirl | static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
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16 | 806b6024 | Gerd Hoffmann | |
17 | b2317837 | Gerd Hoffmann | void usb_bus_new(USBBus *bus, DeviceState *host)
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18 | 806b6024 | Gerd Hoffmann | { |
19 | b2317837 | Gerd Hoffmann | qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
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20 | 806b6024 | Gerd Hoffmann | bus->busnr = next_usb_bus++; |
21 | ef816d83 | Gerd Hoffmann | bus->qbus.allow_hotplug = 1; /* Yes, we can */ |
22 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&bus->free); |
23 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&bus->used); |
24 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&busses, bus, next); |
25 | 806b6024 | Gerd Hoffmann | } |
26 | 806b6024 | Gerd Hoffmann | |
27 | 806b6024 | Gerd Hoffmann | USBBus *usb_bus_find(int busnr)
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28 | 806b6024 | Gerd Hoffmann | { |
29 | 806b6024 | Gerd Hoffmann | USBBus *bus; |
30 | 806b6024 | Gerd Hoffmann | |
31 | 806b6024 | Gerd Hoffmann | if (-1 == busnr) |
32 | 72cf2d4f | Blue Swirl | return QTAILQ_FIRST(&busses);
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33 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bus, &busses, next) { |
34 | 806b6024 | Gerd Hoffmann | if (bus->busnr == busnr)
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35 | 806b6024 | Gerd Hoffmann | return bus;
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36 | 806b6024 | Gerd Hoffmann | } |
37 | 806b6024 | Gerd Hoffmann | return NULL; |
38 | 806b6024 | Gerd Hoffmann | } |
39 | 806b6024 | Gerd Hoffmann | |
40 | 806b6024 | Gerd Hoffmann | static int usb_qdev_init(DeviceState *qdev, DeviceInfo *base) |
41 | 806b6024 | Gerd Hoffmann | { |
42 | 806b6024 | Gerd Hoffmann | USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev); |
43 | 806b6024 | Gerd Hoffmann | USBDeviceInfo *info = DO_UPCAST(USBDeviceInfo, qdev, base); |
44 | 806b6024 | Gerd Hoffmann | int rc;
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45 | 806b6024 | Gerd Hoffmann | |
46 | 806b6024 | Gerd Hoffmann | pstrcpy(dev->devname, sizeof(dev->devname), qdev->info->name);
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47 | 806b6024 | Gerd Hoffmann | dev->info = info; |
48 | 806b6024 | Gerd Hoffmann | rc = dev->info->init(dev); |
49 | a5d2f727 | Gerd Hoffmann | if (rc == 0) |
50 | a5d2f727 | Gerd Hoffmann | usb_device_attach(dev); |
51 | 806b6024 | Gerd Hoffmann | return rc;
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52 | 806b6024 | Gerd Hoffmann | } |
53 | 806b6024 | Gerd Hoffmann | |
54 | a8e662b5 | Gerd Hoffmann | static int usb_qdev_exit(DeviceState *qdev) |
55 | a8e662b5 | Gerd Hoffmann | { |
56 | a8e662b5 | Gerd Hoffmann | USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev); |
57 | a8e662b5 | Gerd Hoffmann | |
58 | a8e662b5 | Gerd Hoffmann | usb_device_detach(dev); |
59 | a8e662b5 | Gerd Hoffmann | if (dev->info->handle_destroy) {
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60 | a8e662b5 | Gerd Hoffmann | dev->info->handle_destroy(dev); |
61 | a8e662b5 | Gerd Hoffmann | } |
62 | a8e662b5 | Gerd Hoffmann | return 0; |
63 | a8e662b5 | Gerd Hoffmann | } |
64 | a8e662b5 | Gerd Hoffmann | |
65 | 806b6024 | Gerd Hoffmann | void usb_qdev_register(USBDeviceInfo *info)
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66 | 806b6024 | Gerd Hoffmann | { |
67 | 806b6024 | Gerd Hoffmann | info->qdev.bus_info = &usb_bus_info; |
68 | 806b6024 | Gerd Hoffmann | info->qdev.init = usb_qdev_init; |
69 | ef816d83 | Gerd Hoffmann | info->qdev.unplug = qdev_simple_unplug_cb; |
70 | a8e662b5 | Gerd Hoffmann | info->qdev.exit = usb_qdev_exit; |
71 | 806b6024 | Gerd Hoffmann | qdev_register(&info->qdev); |
72 | 806b6024 | Gerd Hoffmann | } |
73 | 806b6024 | Gerd Hoffmann | |
74 | 806b6024 | Gerd Hoffmann | void usb_qdev_register_many(USBDeviceInfo *info)
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75 | 806b6024 | Gerd Hoffmann | { |
76 | 806b6024 | Gerd Hoffmann | while (info->qdev.name) {
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77 | 806b6024 | Gerd Hoffmann | usb_qdev_register(info); |
78 | 806b6024 | Gerd Hoffmann | info++; |
79 | 806b6024 | Gerd Hoffmann | } |
80 | 806b6024 | Gerd Hoffmann | } |
81 | 806b6024 | Gerd Hoffmann | |
82 | a5d2f727 | Gerd Hoffmann | USBDevice *usb_create(USBBus *bus, const char *name) |
83 | 806b6024 | Gerd Hoffmann | { |
84 | 806b6024 | Gerd Hoffmann | DeviceState *dev; |
85 | 806b6024 | Gerd Hoffmann | |
86 | 806b6024 | Gerd Hoffmann | #if 1 |
87 | 806b6024 | Gerd Hoffmann | /* temporary stopgap until all usb is properly qdev-ified */
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88 | 806b6024 | Gerd Hoffmann | if (!bus) {
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89 | 806b6024 | Gerd Hoffmann | bus = usb_bus_find(-1);
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90 | 806b6024 | Gerd Hoffmann | if (!bus)
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91 | 806b6024 | Gerd Hoffmann | return NULL; |
92 | 806b6024 | Gerd Hoffmann | fprintf(stderr, "%s: no bus specified, using \"%s\" for \"%s\"\n",
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93 | 806b6024 | Gerd Hoffmann | __FUNCTION__, bus->qbus.name, name); |
94 | 806b6024 | Gerd Hoffmann | } |
95 | 806b6024 | Gerd Hoffmann | #endif
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96 | 806b6024 | Gerd Hoffmann | |
97 | 806b6024 | Gerd Hoffmann | dev = qdev_create(&bus->qbus, name); |
98 | 806b6024 | Gerd Hoffmann | return DO_UPCAST(USBDevice, qdev, dev);
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99 | 806b6024 | Gerd Hoffmann | } |
100 | a5d2f727 | Gerd Hoffmann | |
101 | a5d2f727 | Gerd Hoffmann | USBDevice *usb_create_simple(USBBus *bus, const char *name) |
102 | a5d2f727 | Gerd Hoffmann | { |
103 | a5d2f727 | Gerd Hoffmann | USBDevice *dev = usb_create(bus, name); |
104 | a5d2f727 | Gerd Hoffmann | qdev_init(&dev->qdev); |
105 | a5d2f727 | Gerd Hoffmann | return dev;
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106 | a5d2f727 | Gerd Hoffmann | } |
107 | a5d2f727 | Gerd Hoffmann | |
108 | a5d2f727 | Gerd Hoffmann | void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index, |
109 | a5d2f727 | Gerd Hoffmann | usb_attachfn attach) |
110 | a5d2f727 | Gerd Hoffmann | { |
111 | a5d2f727 | Gerd Hoffmann | port->opaque = opaque; |
112 | a5d2f727 | Gerd Hoffmann | port->index = index; |
113 | a5d2f727 | Gerd Hoffmann | port->attach = attach; |
114 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&bus->free, port, next); |
115 | a5d2f727 | Gerd Hoffmann | bus->nfree++; |
116 | a5d2f727 | Gerd Hoffmann | } |
117 | a5d2f727 | Gerd Hoffmann | |
118 | a8e662b5 | Gerd Hoffmann | void usb_unregister_port(USBBus *bus, USBPort *port)
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119 | a8e662b5 | Gerd Hoffmann | { |
120 | a8e662b5 | Gerd Hoffmann | if (port->dev)
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121 | a8e662b5 | Gerd Hoffmann | qdev_free(&port->dev->qdev); |
122 | a8e662b5 | Gerd Hoffmann | QTAILQ_REMOVE(&bus->free, port, next); |
123 | a8e662b5 | Gerd Hoffmann | bus->nfree--; |
124 | a8e662b5 | Gerd Hoffmann | } |
125 | a8e662b5 | Gerd Hoffmann | |
126 | a5d2f727 | Gerd Hoffmann | static void do_attach(USBDevice *dev) |
127 | a5d2f727 | Gerd Hoffmann | { |
128 | a5d2f727 | Gerd Hoffmann | USBBus *bus = usb_bus_from_device(dev); |
129 | a5d2f727 | Gerd Hoffmann | USBPort *port; |
130 | a5d2f727 | Gerd Hoffmann | |
131 | a5d2f727 | Gerd Hoffmann | if (dev->attached) {
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132 | a5d2f727 | Gerd Hoffmann | fprintf(stderr, "Warning: tried to attach usb device %s twice\n",
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133 | a5d2f727 | Gerd Hoffmann | dev->devname); |
134 | a5d2f727 | Gerd Hoffmann | return;
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135 | a5d2f727 | Gerd Hoffmann | } |
136 | a5d2f727 | Gerd Hoffmann | dev->attached++; |
137 | a5d2f727 | Gerd Hoffmann | |
138 | 72cf2d4f | Blue Swirl | port = QTAILQ_FIRST(&bus->free); |
139 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&bus->free, port, next); |
140 | a5d2f727 | Gerd Hoffmann | bus->nfree--; |
141 | a5d2f727 | Gerd Hoffmann | |
142 | a5d2f727 | Gerd Hoffmann | usb_attach(port, dev); |
143 | a5d2f727 | Gerd Hoffmann | |
144 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&bus->used, port, next); |
145 | a5d2f727 | Gerd Hoffmann | bus->nused++; |
146 | a5d2f727 | Gerd Hoffmann | } |
147 | a5d2f727 | Gerd Hoffmann | |
148 | a5d2f727 | Gerd Hoffmann | int usb_device_attach(USBDevice *dev)
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149 | a5d2f727 | Gerd Hoffmann | { |
150 | a5d2f727 | Gerd Hoffmann | USBBus *bus = usb_bus_from_device(dev); |
151 | a5d2f727 | Gerd Hoffmann | USBDevice *hub; |
152 | a5d2f727 | Gerd Hoffmann | |
153 | a5d2f727 | Gerd Hoffmann | if (bus->nfree == 1) { |
154 | a5d2f727 | Gerd Hoffmann | /* Create a new hub and chain it on. */
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155 | a5d2f727 | Gerd Hoffmann | hub = usb_create_simple(bus, "QEMU USB Hub");
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156 | a5d2f727 | Gerd Hoffmann | } |
157 | a5d2f727 | Gerd Hoffmann | do_attach(dev); |
158 | a5d2f727 | Gerd Hoffmann | return 0; |
159 | a5d2f727 | Gerd Hoffmann | } |
160 | a5d2f727 | Gerd Hoffmann | |
161 | a8e662b5 | Gerd Hoffmann | int usb_device_detach(USBDevice *dev)
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162 | a8e662b5 | Gerd Hoffmann | { |
163 | a8e662b5 | Gerd Hoffmann | USBBus *bus = usb_bus_from_device(dev); |
164 | a8e662b5 | Gerd Hoffmann | USBPort *port; |
165 | a8e662b5 | Gerd Hoffmann | |
166 | a8e662b5 | Gerd Hoffmann | if (!dev->attached) {
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167 | a8e662b5 | Gerd Hoffmann | fprintf(stderr, "Warning: tried to detach unattached usb device %s\n",
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168 | a8e662b5 | Gerd Hoffmann | dev->devname); |
169 | a8e662b5 | Gerd Hoffmann | return -1; |
170 | a8e662b5 | Gerd Hoffmann | } |
171 | a8e662b5 | Gerd Hoffmann | dev->attached--; |
172 | a8e662b5 | Gerd Hoffmann | |
173 | a8e662b5 | Gerd Hoffmann | QTAILQ_FOREACH(port, &bus->used, next) { |
174 | a8e662b5 | Gerd Hoffmann | if (port->dev == dev)
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175 | a8e662b5 | Gerd Hoffmann | break;
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176 | a8e662b5 | Gerd Hoffmann | } |
177 | a8e662b5 | Gerd Hoffmann | assert(port != NULL);
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178 | a8e662b5 | Gerd Hoffmann | |
179 | a8e662b5 | Gerd Hoffmann | QTAILQ_REMOVE(&bus->used, port, next); |
180 | a8e662b5 | Gerd Hoffmann | bus->nused--; |
181 | a8e662b5 | Gerd Hoffmann | |
182 | a8e662b5 | Gerd Hoffmann | usb_attach(port, NULL);
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183 | a8e662b5 | Gerd Hoffmann | |
184 | a8e662b5 | Gerd Hoffmann | QTAILQ_INSERT_TAIL(&bus->free, port, next); |
185 | a8e662b5 | Gerd Hoffmann | bus->nfree++; |
186 | a8e662b5 | Gerd Hoffmann | return 0; |
187 | a8e662b5 | Gerd Hoffmann | } |
188 | a8e662b5 | Gerd Hoffmann | |
189 | a5d2f727 | Gerd Hoffmann | int usb_device_delete_addr(int busnr, int addr) |
190 | a5d2f727 | Gerd Hoffmann | { |
191 | a5d2f727 | Gerd Hoffmann | USBBus *bus; |
192 | a5d2f727 | Gerd Hoffmann | USBPort *port; |
193 | a5d2f727 | Gerd Hoffmann | USBDevice *dev; |
194 | a5d2f727 | Gerd Hoffmann | |
195 | a5d2f727 | Gerd Hoffmann | bus = usb_bus_find(busnr); |
196 | a5d2f727 | Gerd Hoffmann | if (!bus)
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197 | a5d2f727 | Gerd Hoffmann | return -1; |
198 | a5d2f727 | Gerd Hoffmann | |
199 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(port, &bus->used, next) { |
200 | a5d2f727 | Gerd Hoffmann | if (port->dev->addr == addr)
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201 | a5d2f727 | Gerd Hoffmann | break;
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202 | a5d2f727 | Gerd Hoffmann | } |
203 | a5d2f727 | Gerd Hoffmann | if (!port)
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204 | a5d2f727 | Gerd Hoffmann | return -1; |
205 | a5d2f727 | Gerd Hoffmann | dev = port->dev; |
206 | a5d2f727 | Gerd Hoffmann | |
207 | a8e662b5 | Gerd Hoffmann | qdev_free(&dev->qdev); |
208 | a5d2f727 | Gerd Hoffmann | return 0; |
209 | a5d2f727 | Gerd Hoffmann | } |
210 | a5d2f727 | Gerd Hoffmann | |
211 | a5d2f727 | Gerd Hoffmann | static const char *usb_speed(unsigned int speed) |
212 | a5d2f727 | Gerd Hoffmann | { |
213 | a5d2f727 | Gerd Hoffmann | static const char *txt[] = { |
214 | a5d2f727 | Gerd Hoffmann | [ USB_SPEED_LOW ] = "1.5",
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215 | a5d2f727 | Gerd Hoffmann | [ USB_SPEED_FULL ] = "12",
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216 | a5d2f727 | Gerd Hoffmann | [ USB_SPEED_HIGH ] = "480",
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217 | a5d2f727 | Gerd Hoffmann | }; |
218 | a5d2f727 | Gerd Hoffmann | if (speed >= ARRAY_SIZE(txt))
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219 | a5d2f727 | Gerd Hoffmann | return "?"; |
220 | a5d2f727 | Gerd Hoffmann | return txt[speed];
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221 | a5d2f727 | Gerd Hoffmann | } |
222 | a5d2f727 | Gerd Hoffmann | |
223 | a5d2f727 | Gerd Hoffmann | static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent) |
224 | a5d2f727 | Gerd Hoffmann | { |
225 | a5d2f727 | Gerd Hoffmann | USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev); |
226 | a5d2f727 | Gerd Hoffmann | USBBus *bus = usb_bus_from_device(dev); |
227 | a5d2f727 | Gerd Hoffmann | |
228 | a5d2f727 | Gerd Hoffmann | monitor_printf(mon, "%*saddr %d.%d, speed %s, name %s\n", indent, "", |
229 | a5d2f727 | Gerd Hoffmann | bus->busnr, dev->addr, |
230 | a5d2f727 | Gerd Hoffmann | usb_speed(dev->speed), dev->devname); |
231 | a5d2f727 | Gerd Hoffmann | } |
232 | a5d2f727 | Gerd Hoffmann | |
233 | a5d2f727 | Gerd Hoffmann | void usb_info(Monitor *mon)
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234 | a5d2f727 | Gerd Hoffmann | { |
235 | a5d2f727 | Gerd Hoffmann | USBBus *bus; |
236 | a5d2f727 | Gerd Hoffmann | USBDevice *dev; |
237 | a5d2f727 | Gerd Hoffmann | USBPort *port; |
238 | a5d2f727 | Gerd Hoffmann | |
239 | 72cf2d4f | Blue Swirl | if (QTAILQ_EMPTY(&busses)) {
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240 | a5d2f727 | Gerd Hoffmann | monitor_printf(mon, "USB support not enabled\n");
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241 | a5d2f727 | Gerd Hoffmann | return;
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242 | a5d2f727 | Gerd Hoffmann | } |
243 | a5d2f727 | Gerd Hoffmann | |
244 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bus, &busses, next) { |
245 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(port, &bus->used, next) { |
246 | a5d2f727 | Gerd Hoffmann | dev = port->dev; |
247 | a5d2f727 | Gerd Hoffmann | if (!dev)
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248 | a5d2f727 | Gerd Hoffmann | continue;
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249 | a5d2f727 | Gerd Hoffmann | monitor_printf(mon, " Device %d.%d, Speed %s Mb/s, Product %s\n",
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250 | a5d2f727 | Gerd Hoffmann | bus->busnr, dev->addr, usb_speed(dev->speed), dev->devname); |
251 | a5d2f727 | Gerd Hoffmann | } |
252 | a5d2f727 | Gerd Hoffmann | } |
253 | a5d2f727 | Gerd Hoffmann | } |