hw/usb: Remove the USB bluetooth dongle device

We are going to remove the bluetooth backend, so the USB bluetooth
dongle can not work anymore. It's a completely optional device, no
board depends on it, so let's simply remove it now.

Message-Id: <20191120091014.16883-3-thuth@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

4 files changed, 0 insertions, 602 deletions

diff --git a/hw/usb/Kconfig b/hw/usb/Kconfig
index 555e093..5e70ed5 100644
--- a/hw/usb/Kconfig
+++ b/hw/usb/Kconfig
@@ -82,11 +82,6 @@ config USB_NETWORK
     default y
     depends on USB
 
-config USB_BLUETOOTH
-    bool
-    default y
-    depends on USB
-
 config USB_SMARTCARD
     bool
     default y
diff --git a/hw/usb/Makefile.objs b/hw/usb/Makefile.objs
index 303ac08..0ab20f9 100644
--- a/hw/usb/Makefile.objs
+++ b/hw/usb/Makefile.objs
@@ -25,7 +25,6 @@ common-obj-$(CONFIG_USB_STORAGE_UAS)  += dev-uas.o
 common-obj-$(CONFIG_USB_AUDIO)        += dev-audio.o
 common-obj-$(CONFIG_USB_SERIAL)       += dev-serial.o
 common-obj-$(CONFIG_USB_NETWORK)      += dev-network.o
-common-obj-$(CONFIG_USB_BLUETOOTH)    += dev-bluetooth.o
 
 ifeq ($(CONFIG_USB_SMARTCARD),y)
 common-obj-y                          += dev-smartcard-reader.o
diff --git a/hw/usb/dev-bluetooth.c b/hw/usb/dev-bluetooth.c
deleted file mode 100644
index f6944fa..0000000
--- a/hw/usb/dev-bluetooth.c
+++ /dev/null
@@ -1,581 +0,0 @@
-/*
- * QEMU Bluetooth HCI USB Transport Layer v1.0
- *
- * Copyright (C) 2007 OpenMoko, Inc.
- * Copyright (C) 2008 Andrzej Zaborowski  <balrog@zabor.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 or
- * (at your option) version 3 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "qemu/error-report.h"
-#include "qemu/module.h"
-#include "hw/usb.h"
-#include "migration/vmstate.h"
-#include "desc.h"
-#include "sysemu/bt.h"
-#include "hw/bt.h"
-
-struct USBBtState {
-    USBDevice dev;
-    struct HCIInfo *hci;
-    USBEndpoint *intr;
-
-    int config;
-
-#define CFIFO_LEN_MASK	255
-#define DFIFO_LEN_MASK	4095
-    struct usb_hci_in_fifo_s {
-        uint8_t data[(DFIFO_LEN_MASK + 1) * 2];
-        struct {
-            uint8_t *data;
-            int len;
-        } fifo[CFIFO_LEN_MASK + 1];
-        int dstart, dlen, dsize, start, len;
-    } evt, acl, sco;
-
-    struct usb_hci_out_fifo_s {
-        uint8_t data[4096];
-        int len;
-    } outcmd, outacl, outsco;
-};
-
-#define TYPE_USB_BT "usb-bt-dongle"
-#define USB_BT(obj) OBJECT_CHECK(struct USBBtState, (obj), TYPE_USB_BT)
-
-#define USB_EVT_EP	1
-#define USB_ACL_EP	2
-#define USB_SCO_EP	3
-
-enum {
-    STR_MANUFACTURER = 1,
-    STR_SERIALNUMBER,
-};
-
-static const USBDescStrings desc_strings = {
-    [STR_MANUFACTURER]     = "QEMU",
-    [STR_SERIALNUMBER]     = "1",
-};
-
-static const USBDescIface desc_iface_bluetooth[] = {
-    {
-        .bInterfaceNumber              = 0,
-        .bNumEndpoints                 = 3,
-        .bInterfaceClass               = 0xe0, /* Wireless */
-        .bInterfaceSubClass            = 0x01, /* Radio Frequency */
-        .bInterfaceProtocol            = 0x01, /* Bluetooth */
-        .eps = (USBDescEndpoint[]) {
-            {
-                .bEndpointAddress      = USB_DIR_IN | USB_EVT_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_INT,
-                .wMaxPacketSize        = 0x10,
-                .bInterval             = 0x02,
-            },
-            {
-                .bEndpointAddress      = USB_DIR_OUT | USB_ACL_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_BULK,
-                .wMaxPacketSize        = 0x40,
-                .bInterval             = 0x0a,
-            },
-            {
-                .bEndpointAddress      = USB_DIR_IN | USB_ACL_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_BULK,
-                .wMaxPacketSize        = 0x40,
-                .bInterval             = 0x0a,
-            },
-        },
-    },{
-        .bInterfaceNumber              = 1,
-        .bAlternateSetting             = 0,
-        .bNumEndpoints                 = 2,
-        .bInterfaceClass               = 0xe0, /* Wireless */
-        .bInterfaceSubClass            = 0x01, /* Radio Frequency */
-        .bInterfaceProtocol            = 0x01, /* Bluetooth */
-        .eps = (USBDescEndpoint[]) {
-            {
-                .bEndpointAddress      = USB_DIR_OUT | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0,
-                .bInterval             = 0x01,
-            },
-            {
-                .bEndpointAddress      = USB_DIR_IN | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0,
-                .bInterval             = 0x01,
-            },
-        },
-    },{
-        .bInterfaceNumber              = 1,
-        .bAlternateSetting             = 1,
-        .bNumEndpoints                 = 2,
-        .bInterfaceClass               = 0xe0, /* Wireless */
-        .bInterfaceSubClass            = 0x01, /* Radio Frequency */
-        .bInterfaceProtocol            = 0x01, /* Bluetooth */
-        .eps = (USBDescEndpoint[]) {
-            {
-                .bEndpointAddress      = USB_DIR_OUT | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x09,
-                .bInterval             = 0x01,
-            },
-            {
-                .bEndpointAddress      = USB_DIR_IN | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x09,
-                .bInterval             = 0x01,
-            },
-        },
-    },{
-        .bInterfaceNumber              = 1,
-        .bAlternateSetting             = 2,
-        .bNumEndpoints                 = 2,
-        .bInterfaceClass               = 0xe0, /* Wireless */
-        .bInterfaceSubClass            = 0x01, /* Radio Frequency */
-        .bInterfaceProtocol            = 0x01, /* Bluetooth */
-        .eps = (USBDescEndpoint[]) {
-            {
-                .bEndpointAddress      = USB_DIR_OUT | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x11,
-                .bInterval             = 0x01,
-            },
-            {
-                .bEndpointAddress      = USB_DIR_IN | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x11,
-                .bInterval             = 0x01,
-            },
-        },
-    },{
-        .bInterfaceNumber              = 1,
-        .bAlternateSetting             = 3,
-        .bNumEndpoints                 = 2,
-        .bInterfaceClass               = 0xe0, /* Wireless */
-        .bInterfaceSubClass            = 0x01, /* Radio Frequency */
-        .bInterfaceProtocol            = 0x01, /* Bluetooth */
-        .eps = (USBDescEndpoint[]) {
-            {
-                .bEndpointAddress      = USB_DIR_OUT | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x19,
-                .bInterval             = 0x01,
-            },
-            {
-                .bEndpointAddress      = USB_DIR_IN | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x19,
-                .bInterval             = 0x01,
-            },
-        },
-    },{
-        .bInterfaceNumber              = 1,
-        .bAlternateSetting             = 4,
-        .bNumEndpoints                 = 2,
-        .bInterfaceClass               = 0xe0, /* Wireless */
-        .bInterfaceSubClass            = 0x01, /* Radio Frequency */
-        .bInterfaceProtocol            = 0x01, /* Bluetooth */
-        .eps = (USBDescEndpoint[]) {
-            {
-                .bEndpointAddress      = USB_DIR_OUT | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x21,
-                .bInterval             = 0x01,
-            },
-            {
-                .bEndpointAddress      = USB_DIR_IN | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x21,
-                .bInterval             = 0x01,
-            },
-        },
-    },{
-        .bInterfaceNumber              = 1,
-        .bAlternateSetting             = 5,
-        .bNumEndpoints                 = 2,
-        .bInterfaceClass               = 0xe0, /* Wireless */
-        .bInterfaceSubClass            = 0x01, /* Radio Frequency */
-        .bInterfaceProtocol            = 0x01, /* Bluetooth */
-        .eps = (USBDescEndpoint[]) {
-            {
-                .bEndpointAddress      = USB_DIR_OUT | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x31,
-                .bInterval             = 0x01,
-            },
-            {
-                .bEndpointAddress      = USB_DIR_IN | USB_SCO_EP,
-                .bmAttributes          = USB_ENDPOINT_XFER_ISOC,
-                .wMaxPacketSize        = 0x31,
-                .bInterval             = 0x01,
-            },
-        },
-    }
-};
-
-static const USBDescDevice desc_device_bluetooth = {
-    .bcdUSB                        = 0x0110,
-    .bDeviceClass                  = 0xe0, /* Wireless */
-    .bDeviceSubClass               = 0x01, /* Radio Frequency */
-    .bDeviceProtocol               = 0x01, /* Bluetooth */
-    .bMaxPacketSize0               = 64,
-    .bNumConfigurations            = 1,
-    .confs = (USBDescConfig[]) {
-        {
-            .bNumInterfaces        = 2,
-            .bConfigurationValue   = 1,
-            .bmAttributes          = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER,
-            .bMaxPower             = 0,
-            .nif = ARRAY_SIZE(desc_iface_bluetooth),
-            .ifs = desc_iface_bluetooth,
-        },
-    },
-};
-
-static const USBDesc desc_bluetooth = {
-    .id = {
-        .idVendor          = 0x0a12,
-        .idProduct         = 0x0001,
-        .bcdDevice         = 0x1958,
-        .iManufacturer     = STR_MANUFACTURER,
-        .iProduct          = 0,
-        .iSerialNumber     = STR_SERIALNUMBER,
-    },
-    .full = &desc_device_bluetooth,
-    .str  = desc_strings,
-};
-
-static void usb_bt_fifo_reset(struct usb_hci_in_fifo_s *fifo)
-{
-    fifo->dstart = 0;
-    fifo->dlen = 0;
-    fifo->dsize = DFIFO_LEN_MASK + 1;
-    fifo->start = 0;
-    fifo->len = 0;
-}
-
-static void usb_bt_fifo_enqueue(struct usb_hci_in_fifo_s *fifo,
-                const uint8_t *data, int len)
-{
-    int off = fifo->dstart + fifo->dlen;
-    uint8_t *buf;
-
-    fifo->dlen += len;
-    if (off <= DFIFO_LEN_MASK) {
-        if (off + len > DFIFO_LEN_MASK + 1 &&
-                        (fifo->dsize = off + len) > (DFIFO_LEN_MASK + 1) * 2) {
-            fprintf(stderr, "%s: can't alloc %i bytes\n", __func__, len);
-            exit(-1);
-        }
-        buf = fifo->data + off;
-    } else {
-        if (fifo->dlen > fifo->dsize) {
-            fprintf(stderr, "%s: can't alloc %i bytes\n", __func__, len);
-            exit(-1);
-        }
-        buf = fifo->data + off - fifo->dsize;
-    }
-
-    off = (fifo->start + fifo->len ++) & CFIFO_LEN_MASK;
-    fifo->fifo[off].data = memcpy(buf, data, len);
-    fifo->fifo[off].len = len;
-}
-
-static inline void usb_bt_fifo_dequeue(struct usb_hci_in_fifo_s *fifo,
-                USBPacket *p)
-{
-    int len;
-
-    assert(fifo->len != 0);
-
-    len = MIN(p->iov.size, fifo->fifo[fifo->start].len);
-    usb_packet_copy(p, fifo->fifo[fifo->start].data, len);
-    if (len == p->iov.size) {
-        fifo->fifo[fifo->start].len -= len;
-        fifo->fifo[fifo->start].data += len;
-    } else {
-        fifo->start ++;
-        fifo->start &= CFIFO_LEN_MASK;
-        fifo->len --;
-    }
-
-    fifo->dstart += len;
-    fifo->dlen -= len;
-    if (fifo->dstart >= fifo->dsize) {
-        fifo->dstart = 0;
-        fifo->dsize = DFIFO_LEN_MASK + 1;
-    }
-}
-
-static inline void usb_bt_fifo_out_enqueue(struct USBBtState *s,
-                struct usb_hci_out_fifo_s *fifo,
-                void (*send)(struct HCIInfo *, const uint8_t *, int),
-                int (*complete)(const uint8_t *, int),
-                USBPacket *p)
-{
-    usb_packet_copy(p, fifo->data + fifo->len, p->iov.size);
-    fifo->len += p->iov.size;
-    if (complete(fifo->data, fifo->len)) {
-        send(s->hci, fifo->data, fifo->len);
-        fifo->len = 0;
-    }
-
-    /* TODO: do we need to loop? */
-}
-
-static int usb_bt_hci_cmd_complete(const uint8_t *data, int len)
-{
-    len -= HCI_COMMAND_HDR_SIZE;
-    return len >= 0 &&
-            len >= ((struct hci_command_hdr *) data)->plen;
-}
-
-static int usb_bt_hci_acl_complete(const uint8_t *data, int len)
-{
-    len -= HCI_ACL_HDR_SIZE;
-    return len >= 0 &&
-            len >= le16_to_cpu(((struct hci_acl_hdr *) data)->dlen);
-}
-
-static int usb_bt_hci_sco_complete(const uint8_t *data, int len)
-{
-    len -= HCI_SCO_HDR_SIZE;
-    return len >= 0 &&
-            len >= ((struct hci_sco_hdr *) data)->dlen;
-}
-
-static void usb_bt_handle_reset(USBDevice *dev)
-{
-    struct USBBtState *s = (struct USBBtState *) dev->opaque;
-
-    usb_bt_fifo_reset(&s->evt);
-    usb_bt_fifo_reset(&s->acl);
-    usb_bt_fifo_reset(&s->sco);
-    s->outcmd.len = 0;
-    s->outacl.len = 0;
-    s->outsco.len = 0;
-}
-
-static void usb_bt_handle_control(USBDevice *dev, USBPacket *p,
-               int request, int value, int index, int length, uint8_t *data)
-{
-    struct USBBtState *s = (struct USBBtState *) dev->opaque;
-    int ret;
-
-    ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
-    if (ret >= 0) {
-        switch (request) {
-        case DeviceRequest | USB_REQ_GET_CONFIGURATION:
-            s->config = 0;
-            break;
-        case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
-            s->config = 1;
-            usb_bt_fifo_reset(&s->evt);
-            usb_bt_fifo_reset(&s->acl);
-            usb_bt_fifo_reset(&s->sco);
-            break;
-        }
-        return;
-    }
-
-    switch (request) {
-    case InterfaceRequest | USB_REQ_GET_STATUS:
-    case EndpointRequest | USB_REQ_GET_STATUS:
-        data[0] = 0x00;
-        data[1] = 0x00;
-        p->actual_length = 2;
-        break;
-    case InterfaceOutRequest | USB_REQ_CLEAR_FEATURE:
-    case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
-        goto fail;
-    case InterfaceOutRequest | USB_REQ_SET_FEATURE:
-    case EndpointOutRequest | USB_REQ_SET_FEATURE:
-        goto fail;
-        break;
-    case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_DEVICE) << 8):
-        if (s->config)
-            usb_bt_fifo_out_enqueue(s, &s->outcmd, s->hci->cmd_send,
-                            usb_bt_hci_cmd_complete, p);
-        break;
-    default:
-    fail:
-        p->status = USB_RET_STALL;
-        break;
-    }
-}
-
-static void usb_bt_handle_data(USBDevice *dev, USBPacket *p)
-{
-    struct USBBtState *s = (struct USBBtState *) dev->opaque;
-
-    if (!s->config)
-        goto fail;
-
-    switch (p->pid) {
-    case USB_TOKEN_IN:
-        switch (p->ep->nr) {
-        case USB_EVT_EP:
-            if (s->evt.len == 0) {
-                p->status = USB_RET_NAK;
-                break;
-            }
-            usb_bt_fifo_dequeue(&s->evt, p);
-            break;
-
-        case USB_ACL_EP:
-            if (s->evt.len == 0) {
-                p->status = USB_RET_STALL;
-                break;
-            }
-            usb_bt_fifo_dequeue(&s->acl, p);
-            break;
-
-        case USB_SCO_EP:
-            if (s->evt.len == 0) {
-                p->status = USB_RET_STALL;
-                break;
-            }
-            usb_bt_fifo_dequeue(&s->sco, p);
-            break;
-
-        default:
-            goto fail;
-        }
-        break;
-
-    case USB_TOKEN_OUT:
-        switch (p->ep->nr) {
-        case USB_ACL_EP:
-            usb_bt_fifo_out_enqueue(s, &s->outacl, s->hci->acl_send,
-                            usb_bt_hci_acl_complete, p);
-            break;
-
-        case USB_SCO_EP:
-            usb_bt_fifo_out_enqueue(s, &s->outsco, s->hci->sco_send,
-                            usb_bt_hci_sco_complete, p);
-            break;
-
-        default:
-            goto fail;
-        }
-        break;
-
-    default:
-    fail:
-        p->status = USB_RET_STALL;
-        break;
-    }
-}
-
-static void usb_bt_out_hci_packet_event(void *opaque,
-                const uint8_t *data, int len)
-{
-    struct USBBtState *s = (struct USBBtState *) opaque;
-
-    if (s->evt.len == 0) {
-        usb_wakeup(s->intr, 0);
-    }
-    usb_bt_fifo_enqueue(&s->evt, data, len);
-}
-
-static void usb_bt_out_hci_packet_acl(void *opaque,
-                const uint8_t *data, int len)
-{
-    struct USBBtState *s = (struct USBBtState *) opaque;
-
-    usb_bt_fifo_enqueue(&s->acl, data, len);
-}
-
-static void usb_bt_unrealize(USBDevice *dev, Error **errp)
-{
-    struct USBBtState *s = (struct USBBtState *) dev->opaque;
-
-    s->hci->opaque = NULL;
-    s->hci->evt_recv = NULL;
-    s->hci->acl_recv = NULL;
-}
-
-static void usb_bt_realize(USBDevice *dev, Error **errp)
-{
-    struct USBBtState *s = USB_BT(dev);
-
-    usb_desc_create_serial(dev);
-    usb_desc_init(dev);
-    s->dev.opaque = s;
-    if (!s->hci) {
-        s->hci = bt_new_hci(qemu_find_bt_vlan(0));
-    }
-    s->hci->opaque = s;
-    s->hci->evt_recv = usb_bt_out_hci_packet_event;
-    s->hci->acl_recv = usb_bt_out_hci_packet_acl;
-    usb_bt_handle_reset(&s->dev);
-    s->intr = usb_ep_get(dev, USB_TOKEN_IN, USB_EVT_EP);
-}
-
-static USBDevice *usb_bt_init(USBBus *bus, const char *cmdline)
-{
-    USBDevice *dev;
-    struct USBBtState *s;
-    HCIInfo *hci;
-    const char *name = TYPE_USB_BT;
-
-    if (*cmdline) {
-        hci = hci_init(cmdline);
-    } else {
-        hci = bt_new_hci(qemu_find_bt_vlan(0));
-    }
-    if (!hci)
-        return NULL;
-
-    dev = usb_create(bus, name);
-    s = USB_BT(dev);
-    s->hci = hci;
-    return dev;
-}
-
-static const VMStateDescription vmstate_usb_bt = {
-    .name = "usb-bt",
-    .unmigratable = 1,
-};
-
-static void usb_bt_class_initfn(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-    USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
-
-    uc->realize        = usb_bt_realize;
-    uc->product_desc   = "QEMU BT dongle";
-    uc->usb_desc       = &desc_bluetooth;
-    uc->handle_reset   = usb_bt_handle_reset;
-    uc->handle_control = usb_bt_handle_control;
-    uc->handle_data    = usb_bt_handle_data;
-    uc->unrealize      = usb_bt_unrealize;
-    dc->vmsd = &vmstate_usb_bt;
-    set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
-}
-
-static const TypeInfo bt_info = {
-    .name          = TYPE_USB_BT,
-    .parent        = TYPE_USB_DEVICE,
-    .instance_size = sizeof(struct USBBtState),
-    .class_init    = usb_bt_class_initfn,
-};
-
-static void usb_bt_register_types(void)
-{
-    type_register_static(&bt_info);
-    usb_legacy_register(TYPE_USB_BT, "bt", usb_bt_init);
-}
-
-type_init(usb_bt_register_types)
diff --git a/qemu-doc.texi b/qemu-doc.texi
index ed3df01..eea91a2 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -983,21 +983,6 @@ For instance, user-mode networking can be used with
 Smartcard reader device
 @item usb-audio
 USB audio device
-@item usb-bt-dongle
-Bluetooth dongle for the transport layer of HCI. It is connected to HCI
-scatternet 0 by default (corresponds to @code{-bt hci,vlan=0}).
-Note that the syntax for the @code{-device usb-bt-dongle} option is not as
-useful yet as it was with the legacy @code{-usbdevice} option. So to
-configure an USB bluetooth device, you might need to use
-"@code{-usbdevice bt}[:@var{hci-type}]" instead. This configures a
-bluetooth dongle whose type is specified in the same format as with
-the @option{-bt hci} option, @pxref{bt-hcis,,allowed HCI types}.  If
-no type is given, the HCI logic corresponds to @code{-bt hci,vlan=0}.
-This USB device implements the USB Transport Layer of HCI.  Example
-usage:
-@example
-@command{@value{qemu_system}} [...@var{OPTIONS}...] @option{-usbdevice} bt:hci,vlan=3 @option{-bt} device:keyboard,vlan=3
-@end example
 @end table
 
 @node host_usb_devices