2 * Linux host USB redirector
4 * Copyright (c) 2005 Fabrice Bellard
6 * Copyright (c) 2008 Max Krasnyansky
7 * Support for host device auto connect & disconnect
8 * Magor rewrite to support fully async operation
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include "qemu-common.h"
29 #include "qemu-timer.h"
33 #if defined(__linux__)
35 #include <sys/ioctl.h>
36 #include <linux/usbdevice_fs.h>
37 #include <linux/version.h>
40 /* We redefine it to avoid version problems */
41 struct usb_ctrltransfer {
51 typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id,
52 int vendor_id, int product_id,
53 const char *product_name, int speed);
54 static int usb_host_find_device(int *pbus_num, int *paddr,
55 char *product_name, int product_name_size,
61 #define dprintf printf
66 #define USBDEVFS_PATH "/proc/bus/usb"
67 #define PRODUCT_NAME_SZ 32
68 #define MAX_ENDPOINTS 16
70 struct sigaction sigact;
72 /* endpoint association data */
78 typedef struct USBHostDevice {
87 struct endp_data endp_table[MAX_ENDPOINTS];
89 /* Host side address */
93 struct USBHostDevice *next;
96 static int is_isoc(USBHostDevice *s, int ep)
98 return s->endp_table[ep - 1].type == USBDEVFS_URB_TYPE_ISO;
101 static int is_halted(USBHostDevice *s, int ep)
103 return s->endp_table[ep - 1].halted;
106 static void clear_halt(USBHostDevice *s, int ep)
108 s->endp_table[ep - 1].halted = 0;
111 static void set_halt(USBHostDevice *s, int ep)
113 s->endp_table[ep - 1].halted = 1;
116 static USBHostDevice *hostdev_list;
118 static void hostdev_link(USBHostDevice *dev)
120 dev->next = hostdev_list;
124 static void hostdev_unlink(USBHostDevice *dev)
126 USBHostDevice *pdev = hostdev_list;
127 USBHostDevice **prev = &hostdev_list;
140 static USBHostDevice *hostdev_find(int bus_num, int addr)
142 USBHostDevice *s = hostdev_list;
144 if (s->bus_num == bus_num && s->addr == addr)
153 * We always allocate one isoc descriptor even for bulk transfers
154 * to simplify allocation and casts.
156 typedef struct AsyncURB
158 struct usbdevfs_urb urb;
159 struct usbdevfs_iso_packet_desc isocpd;
165 static AsyncURB *async_alloc(void)
167 return (AsyncURB *) qemu_mallocz(sizeof(AsyncURB));
170 static void async_free(AsyncURB *aurb)
175 static void async_complete(void *opaque)
177 USBHostDevice *s = opaque;
183 int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &aurb);
188 if (errno == ENODEV && !s->closing) {
189 printf("husb: device %d.%d disconnected\n", s->bus_num, s->addr);
190 usb_device_del_addr(0, s->dev.addr);
194 dprintf("husb: async. reap urb failed errno %d\n", errno);
200 dprintf("husb: async completed. aurb %p status %d alen %d\n",
201 aurb, aurb->urb.status, aurb->urb.actual_length);
204 switch (aurb->urb.status) {
206 p->len = aurb->urb.actual_length;
210 set_halt(s, p->devep);
213 p->len = USB_RET_NAK;
217 usb_packet_complete(p);
224 static void async_cancel(USBPacket *unused, void *opaque)
226 AsyncURB *aurb = opaque;
227 USBHostDevice *s = aurb->hdev;
229 dprintf("husb: async cancel. aurb %p\n", aurb);
231 /* Mark it as dead (see async_complete above) */
234 int r = ioctl(s->fd, USBDEVFS_DISCARDURB, aurb);
236 dprintf("husb: async. discard urb failed errno %d\n", errno);
240 static int usb_host_update_interfaces(USBHostDevice *dev, int configuration)
242 int dev_descr_len, config_descr_len;
243 int interface, nb_interfaces, nb_configurations;
246 if (configuration == 0) /* address state - ignore */
250 dev_descr_len = dev->descr[0];
251 if (dev_descr_len > dev->descr_len)
253 nb_configurations = dev->descr[17];
256 while (i < dev->descr_len) {
257 dprintf("husb: i is %d, descr_len is %d, dl %d, dt %d\n", i, dev->descr_len,
258 dev->descr[i], dev->descr[i+1]);
260 if (dev->descr[i+1] != USB_DT_CONFIG) {
264 config_descr_len = dev->descr[i];
266 printf("husb: config #%d need %d\n", dev->descr[i + 5], configuration);
268 if (configuration < 0 || configuration == dev->descr[i + 5])
271 i += config_descr_len;
274 if (i >= dev->descr_len) {
275 fprintf(stderr, "husb: update iface failed. no matching configuration\n");
278 nb_interfaces = dev->descr[i + 4];
280 #ifdef USBDEVFS_DISCONNECT
281 /* earlier Linux 2.4 do not support that */
283 struct usbdevfs_ioctl ctrl;
284 for (interface = 0; interface < nb_interfaces; interface++) {
285 ctrl.ioctl_code = USBDEVFS_DISCONNECT;
286 ctrl.ifno = interface;
287 ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl);
288 if (ret < 0 && errno != ENODATA) {
289 perror("USBDEVFS_DISCONNECT");
296 /* XXX: only grab if all interfaces are free */
297 for (interface = 0; interface < nb_interfaces; interface++) {
298 ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface);
300 if (errno == EBUSY) {
301 printf("husb: update iface. device already grabbed\n");
303 perror("husb: failed to claim interface");
310 printf("husb: %d interfaces claimed for configuration %d\n",
311 nb_interfaces, configuration);
316 static void usb_host_handle_reset(USBDevice *dev)
318 USBHostDevice *s = (USBHostDevice *)dev;
320 dprintf("husb: reset device %u.%u\n", s->bus_num, s->addr);
322 ioctl(s->fd, USBDEVFS_RESET);
323 usb_host_update_interfaces(s, s->configuration);
326 static void usb_host_handle_destroy(USBDevice *dev)
328 USBHostDevice *s = (USBHostDevice *)dev;
332 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
344 static int usb_linux_update_endp_table(USBHostDevice *s);
346 static int usb_host_handle_control(USBDevice *dev,
353 USBHostDevice *s = (USBHostDevice *)dev;
354 struct usb_ctrltransfer ct;
355 struct usbdevfs_setinterface si;
356 int intf_update_required = 0;
359 if (request == (DeviceOutRequest | USB_REQ_SET_ADDRESS)) {
360 /* specific SET_ADDRESS support */
363 } else if (request == ((USB_RECIP_INTERFACE << 8) |
364 USB_REQ_SET_INTERFACE)) {
365 /* set alternate setting for the interface */
366 si.interface = index;
367 si.altsetting = value;
368 ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si);
369 usb_linux_update_endp_table(s);
370 } else if (request == (DeviceOutRequest | USB_REQ_SET_CONFIGURATION)) {
371 dprintf("husb: ctrl set config %d\n", value & 0xff);
372 if (s->configuration != (value & 0xff)) {
373 s->configuration = (value & 0xff);
374 intf_update_required = 1;
379 ct.bRequestType = request >> 8;
380 ct.bRequest = request;
386 ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
388 dprintf("husb: ctrl req 0x%x val 0x%x index %u len %u ret %d\n",
389 ct.bRequest, ct.wValue, ct.wIndex, ct.wLength, ret);
397 return USB_RET_STALL;
400 if (intf_update_required) {
401 dprintf("husb: updating interfaces\n");
402 usb_host_update_interfaces(s, value & 0xff);
408 static int usb_host_handle_data(USBDevice *dev, USBPacket *p)
410 USBHostDevice *s = (USBHostDevice *) dev;
412 struct usbdevfs_urb *urb;
415 aurb = async_alloc();
417 dprintf("husb: async malloc failed\n");
425 if (p->pid == USB_TOKEN_IN)
426 urb->endpoint = p->devep | 0x80;
428 urb->endpoint = p->devep;
430 if (is_halted(s, p->devep)) {
431 ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT, &urb->endpoint);
433 dprintf("husb: failed to clear halt. ep 0x%x errno %d\n",
434 urb->endpoint, errno);
437 clear_halt(s, p->devep);
440 urb->buffer = p->data;
441 urb->buffer_length = p->len;
443 if (is_isoc(s, p->devep)) {
444 /* Setup ISOC transfer */
445 urb->type = USBDEVFS_URB_TYPE_ISO;
446 urb->flags = USBDEVFS_URB_ISO_ASAP;
447 urb->number_of_packets = 1;
448 urb->iso_frame_desc[0].length = p->len;
450 /* Setup bulk transfer */
451 urb->type = USBDEVFS_URB_TYPE_BULK;
454 urb->usercontext = s;
456 ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb);
458 dprintf("husb: data submit. ep 0x%x len %u aurb %p\n", urb->endpoint, p->len, aurb);
461 dprintf("husb: submit failed. errno %d\n", errno);
469 return USB_RET_STALL;
473 usb_defer_packet(p, async_cancel, aurb);
474 return USB_RET_ASYNC;
477 /* returns 1 on problem encountered or 0 for success */
478 static int usb_linux_update_endp_table(USBHostDevice *s)
480 uint8_t *descriptors;
481 uint8_t devep, type, configuration, alt_interface;
482 struct usb_ctrltransfer ct;
483 int interface, ret, length, i;
485 ct.bRequestType = USB_DIR_IN;
486 ct.bRequest = USB_REQ_GET_CONFIGURATION;
490 ct.data = &configuration;
493 ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
495 perror("usb_linux_update_endp_table");
499 /* in address state */
500 if (configuration == 0)
503 /* get the desired configuration, interface, and endpoint descriptors
504 * from device description */
505 descriptors = &s->descr[18];
506 length = s->descr_len - 18;
509 if (descriptors[i + 1] != USB_DT_CONFIG ||
510 descriptors[i + 5] != configuration) {
511 dprintf("invalid descriptor data - configuration\n");
517 if (descriptors[i + 1] != USB_DT_INTERFACE ||
518 (descriptors[i + 1] == USB_DT_INTERFACE &&
519 descriptors[i + 4] == 0)) {
524 interface = descriptors[i + 2];
526 ct.bRequestType = USB_DIR_IN | USB_RECIP_INTERFACE;
527 ct.bRequest = USB_REQ_GET_INTERFACE;
529 ct.wIndex = interface;
531 ct.data = &alt_interface;
534 ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
536 perror("usb_linux_update_endp_table");
540 /* the current interface descriptor is the active interface
541 * and has endpoints */
542 if (descriptors[i + 3] != alt_interface) {
547 /* advance to the endpoints */
548 while (i < length && descriptors[i +1] != USB_DT_ENDPOINT)
555 if (descriptors[i + 1] != USB_DT_ENDPOINT)
558 devep = descriptors[i + 2];
559 switch (descriptors[i + 3] & 0x3) {
561 type = USBDEVFS_URB_TYPE_CONTROL;
564 type = USBDEVFS_URB_TYPE_ISO;
567 type = USBDEVFS_URB_TYPE_BULK;
570 type = USBDEVFS_URB_TYPE_INTERRUPT;
573 dprintf("usb_host: malformed endpoint type\n");
574 type = USBDEVFS_URB_TYPE_BULK;
576 s->endp_table[(devep & 0xf) - 1].type = type;
577 s->endp_table[(devep & 0xf) - 1].halted = 0;
585 static USBDevice *usb_host_device_open_addr(int bus_num, int addr, const char *prod_name)
588 USBHostDevice *dev = NULL;
589 struct usbdevfs_connectinfo ci;
592 dev = qemu_mallocz(sizeof(USBHostDevice));
596 dev->bus_num = bus_num;
599 printf("husb: open device %d.%d\n", bus_num, addr);
601 snprintf(buf, sizeof(buf), USBDEVFS_PATH "/%03d/%03d",
603 fd = open(buf, O_RDWR | O_NONBLOCK);
609 /* read the device description */
610 dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
611 if (dev->descr_len <= 0) {
612 perror("husb: reading device data failed");
619 printf("=== begin dumping device descriptor data ===\n");
620 for (x = 0; x < dev->descr_len; x++)
621 printf("%02x ", dev->descr[x]);
622 printf("\n=== end dumping device descriptor data ===\n");
627 dev->configuration = 1;
629 /* XXX - do something about initial configuration */
630 if (!usb_host_update_interfaces(dev, -1))
633 ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci);
635 perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
639 printf("husb: grabbed usb device %d.%d\n", bus_num, addr);
641 ret = usb_linux_update_endp_table(dev);
646 dev->dev.speed = USB_SPEED_LOW;
648 dev->dev.speed = USB_SPEED_HIGH;
649 dev->dev.handle_packet = usb_generic_handle_packet;
651 dev->dev.handle_reset = usb_host_handle_reset;
652 dev->dev.handle_control = usb_host_handle_control;
653 dev->dev.handle_data = usb_host_handle_data;
654 dev->dev.handle_destroy = usb_host_handle_destroy;
656 if (!prod_name || prod_name[0] == '\0')
657 snprintf(dev->dev.devname, sizeof(dev->dev.devname),
658 "host:%d.%d", bus_num, addr);
660 pstrcpy(dev->dev.devname, sizeof(dev->dev.devname),
663 /* USB devio uses 'write' flag to check for async completions */
664 qemu_set_fd_handler(dev->fd, NULL, async_complete, dev);
668 return (USBDevice *) dev;
678 USBDevice *usb_host_device_open(const char *devname)
681 char product_name[PRODUCT_NAME_SZ];
683 if (usb_host_find_device(&bus_num, &addr,
684 product_name, sizeof(product_name),
688 if (hostdev_find(bus_num, addr)) {
689 term_printf("husb: host usb device %d.%d is already open\n", bus_num, addr);
693 return usb_host_device_open_addr(bus_num, addr, product_name);
696 static int get_tag_value(char *buf, int buf_size,
697 const char *str, const char *tag,
698 const char *stopchars)
702 p = strstr(str, tag);
709 while (*p != '\0' && !strchr(stopchars, *p)) {
710 if ((q - buf) < (buf_size - 1))
718 static int usb_host_scan(void *opaque, USBScanFunc *func)
723 int bus_num, addr, speed, device_count, class_id, product_id, vendor_id;
725 char product_name[512];
727 f = fopen(USBDEVFS_PATH "/devices", "r");
729 term_printf("husb: could not open %s\n", USBDEVFS_PATH "/devices");
733 bus_num = addr = speed = class_id = product_id = vendor_id = 0;
736 if (fgets(line, sizeof(line), f) == NULL)
738 if (strlen(line) > 0)
739 line[strlen(line) - 1] = '\0';
740 if (line[0] == 'T' && line[1] == ':') {
741 if (device_count && (vendor_id || product_id)) {
742 /* New device. Add the previously discovered device. */
743 ret = func(opaque, bus_num, addr, class_id, vendor_id,
744 product_id, product_name, speed);
748 if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ") < 0)
751 if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ") < 0)
754 if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0)
756 if (!strcmp(buf, "480"))
757 speed = USB_SPEED_HIGH;
758 else if (!strcmp(buf, "1.5"))
759 speed = USB_SPEED_LOW;
761 speed = USB_SPEED_FULL;
762 product_name[0] = '\0';
767 } else if (line[0] == 'P' && line[1] == ':') {
768 if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ") < 0)
770 vendor_id = strtoul(buf, NULL, 16);
771 if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ") < 0)
773 product_id = strtoul(buf, NULL, 16);
774 } else if (line[0] == 'S' && line[1] == ':') {
775 if (get_tag_value(buf, sizeof(buf), line, "Product=", "") < 0)
777 pstrcpy(product_name, sizeof(product_name), buf);
778 } else if (line[0] == 'D' && line[1] == ':') {
779 if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (") < 0)
781 class_id = strtoul(buf, NULL, 16);
785 if (device_count && (vendor_id || product_id)) {
786 /* Add the last device. */
787 ret = func(opaque, bus_num, addr, class_id, vendor_id,
788 product_id, product_name, speed);
795 struct USBAutoFilter {
796 struct USBAutoFilter *next;
803 static QEMUTimer *usb_auto_timer;
804 static struct USBAutoFilter *usb_auto_filter;
806 static int usb_host_auto_scan(void *opaque, int bus_num, int addr,
807 int class_id, int vendor_id, int product_id,
808 const char *product_name, int speed)
810 struct USBAutoFilter *f;
811 struct USBDevice *dev;
817 for (f = usb_auto_filter; f; f = f->next) {
818 if (f->bus_num >= 0 && f->bus_num != bus_num)
821 if (f->addr >= 0 && f->addr != addr)
824 if (f->vendor_id >= 0 && f->vendor_id != vendor_id)
827 if (f->product_id >= 0 && f->product_id != product_id)
832 /* Allredy attached ? */
833 if (hostdev_find(bus_num, addr))
836 dprintf("husb: auto open: bus_num %d addr %d\n", bus_num, addr);
838 dev = usb_host_device_open_addr(bus_num, addr, product_name);
840 usb_device_add_dev(dev);
846 static void usb_host_auto_timer(void *unused)
848 usb_host_scan(NULL, usb_host_auto_scan);
849 qemu_mod_timer(usb_auto_timer, qemu_get_clock(rt_clock) + 2000);
853 * Add autoconnect filter
854 * -1 means 'any' (device, vendor, etc)
856 static void usb_host_auto_add(int bus_num, int addr, int vendor_id, int product_id)
858 struct USBAutoFilter *f = qemu_mallocz(sizeof(*f));
860 fprintf(stderr, "husb: failed to allocate auto filter\n");
864 f->bus_num = bus_num;
866 f->vendor_id = vendor_id;
867 f->product_id = product_id;
869 if (!usb_auto_filter) {
871 * First entry. Init and start the monitor.
872 * Right now we're using timer to check for new devices.
873 * If this turns out to be too expensive we can move that into a
876 usb_auto_timer = qemu_new_timer(rt_clock, usb_host_auto_timer, NULL);
877 if (!usb_auto_timer) {
878 fprintf(stderr, "husb: failed to allocate auto scan timer\n");
883 /* Check for new devices every two seconds */
884 qemu_mod_timer(usb_auto_timer, qemu_get_clock(rt_clock) + 2000);
887 dprintf("husb: auto filter: bus_num %d addr %d vid %d pid %d\n",
888 bus_num, addr, vendor_id, product_id);
890 f->next = usb_auto_filter;
894 typedef struct FindDeviceState {
899 char product_name[PRODUCT_NAME_SZ];
902 static int usb_host_find_device_scan(void *opaque, int bus_num, int addr,
904 int vendor_id, int product_id,
905 const char *product_name, int speed)
907 FindDeviceState *s = opaque;
908 if ((vendor_id == s->vendor_id &&
909 product_id == s->product_id) ||
910 (bus_num == s->bus_num &&
912 pstrcpy(s->product_name, PRODUCT_NAME_SZ, product_name);
913 s->bus_num = bus_num;
922 'bus.addr' (decimal numbers) or
923 'vendor_id:product_id' (hexa numbers) */
924 static int usb_host_find_device(int *pbus_num, int *paddr,
925 char *product_name, int product_name_size,
932 p = strchr(devname, '.');
934 *pbus_num = strtoul(devname, NULL, 0);
936 if (*(p + 1) == '*') {
937 usb_host_auto_add(*pbus_num, -1, -1, -1);
941 *paddr = strtoul(p + 1, NULL, 0);
942 fs.bus_num = *pbus_num;
944 ret = usb_host_scan(&fs, usb_host_find_device_scan);
946 pstrcpy(product_name, product_name_size, fs.product_name);
949 p = strchr(devname, ':');
951 fs.vendor_id = strtoul(devname, NULL, 16);
953 if (*(p + 1) == '*') {
954 usb_host_auto_add(-1, -1, fs.vendor_id, -1);
958 fs.product_id = strtoul(p + 1, NULL, 16);
959 ret = usb_host_scan(&fs, usb_host_find_device_scan);
961 *pbus_num = fs.bus_num;
963 pstrcpy(product_name, product_name_size, fs.product_name);
970 /**********************/
971 /* USB host device info */
973 struct usb_class_info {
975 const char *class_name;
978 static const struct usb_class_info usb_class_info[] = {
979 { USB_CLASS_AUDIO, "Audio"},
980 { USB_CLASS_COMM, "Communication"},
981 { USB_CLASS_HID, "HID"},
982 { USB_CLASS_HUB, "Hub" },
983 { USB_CLASS_PHYSICAL, "Physical" },
984 { USB_CLASS_PRINTER, "Printer" },
985 { USB_CLASS_MASS_STORAGE, "Storage" },
986 { USB_CLASS_CDC_DATA, "Data" },
987 { USB_CLASS_APP_SPEC, "Application Specific" },
988 { USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
989 { USB_CLASS_STILL_IMAGE, "Still Image" },
990 { USB_CLASS_CSCID, "Smart Card" },
991 { USB_CLASS_CONTENT_SEC, "Content Security" },
995 static const char *usb_class_str(uint8_t class)
997 const struct usb_class_info *p;
998 for(p = usb_class_info; p->class != -1; p++) {
999 if (p->class == class)
1002 return p->class_name;
1005 static void usb_info_device(int bus_num, int addr, int class_id,
1006 int vendor_id, int product_id,
1007 const char *product_name,
1010 const char *class_str, *speed_str;
1016 case USB_SPEED_FULL:
1019 case USB_SPEED_HIGH:
1027 term_printf(" Device %d.%d, speed %s Mb/s\n",
1028 bus_num, addr, speed_str);
1029 class_str = usb_class_str(class_id);
1031 term_printf(" %s:", class_str);
1033 term_printf(" Class %02x:", class_id);
1034 term_printf(" USB device %04x:%04x", vendor_id, product_id);
1035 if (product_name[0] != '\0')
1036 term_printf(", %s", product_name);
1040 static int usb_host_info_device(void *opaque, int bus_num, int addr,
1042 int vendor_id, int product_id,
1043 const char *product_name,
1046 usb_info_device(bus_num, addr, class_id, vendor_id, product_id,
1047 product_name, speed);
1051 void usb_host_info(void)
1053 usb_host_scan(NULL, usb_host_info_device);
1058 void usb_host_info(void)
1060 term_printf("USB host devices not supported\n");
1063 /* XXX: modify configure to compile the right host driver */
1064 USBDevice *usb_host_device_open(const char *devname)