Example #1
0
int get_usbinfo(int bus, int dev, usbinfo_t *ui)
{
  struct udev *udev;
  struct udev_enumerate *enumerate;
  struct udev_list_entry *devices, *dev_list_entry;
  struct udev_device *udev_dev;
  char bus_str[16], dev_str[16];
  int found = 0;

  memset(ui, 0, sizeof(usbinfo_t));

  /* construct xenstore dev id */
  if (dev > 0xFFF) {
    xd_log(LOG_ERR, "bad device id %d", dev);
    return -EINVAL;
  }

  ui->usb_virtid = bus << 12 | (dev & 0xFFF);
  ui->usb_bus = bus;
  ui->usb_device = dev;

  /* udev scan */
  udev = udev_new();
  if (!udev) {
    xd_log(LOG_ERR, "Can't create udev");
    return -ENOMEM;
  }
  enumerate = udev_enumerate_new(udev);
  if (!enumerate) {
    xd_log(LOG_ERR, "Can't create enumeration");
    return -ENOMEM;
  }

  snprintf(bus_str, sizeof(bus_str), "%d", bus);
  snprintf(dev_str, sizeof(dev_str), "%d", dev);

  udev_enumerate_add_match_subsystem(enumerate, "usb");
  udev_enumerate_add_match_sysattr(enumerate, "busnum", bus_str);
  udev_enumerate_add_match_sysattr(enumerate, "devnum", dev_str);
  udev_enumerate_scan_devices(enumerate);
  devices = udev_enumerate_get_list_entry(enumerate);
  udev_list_entry_foreach(dev_list_entry, devices) {
    const char *path;
    path = udev_list_entry_get_name(dev_list_entry);
    udev_dev = udev_device_new_from_syspath(udev, path);
    sscanf(udev_device_get_sysattr_value(udev_dev, "idVendor"), "%x", &ui->usb_vendor);
    sscanf(udev_device_get_sysattr_value(udev_dev, "idProduct"), "%x", &ui->usb_product);
    udev_device_unref(udev_dev);
    udev_enumerate_unref(enumerate);
    udev_unref(udev);
    return 0;
  }
  udev_enumerate_unref(enumerate);
  udev_unref(udev);
  return -ENOENT;
}
Example #2
0
/**
 * Search udev for usb device with specified idVendor and idProduct
 */
const char* get_usb_device_syspath(const char* idVendor, const char* idProduct, char* buf) {
    struct udev* udev;
    struct udev_enumerate* en;
    struct udev_list_entry* dev_list_entry;

    udev = udev_new();
    if (udev<0) {
        return 0;
    }

    en = udev_enumerate_new(udev);
    udev_enumerate_add_match_subsystem(en, "usb");
    udev_enumerate_add_match_sysattr(en, "idVendor",idVendor);
    udev_enumerate_add_match_sysattr(en, "idProduct",idProduct);
    udev_enumerate_scan_devices(en);

    dev_list_entry = udev_enumerate_get_list_entry(en);
    if (dev_list_entry == 0 ) {
        return 0;
    }

    sprintf(buf, udev_list_entry_get_name(dev_list_entry));
    udev_enumerate_unref(en);
    udev_unref(udev);
    return buf;
}
void joystick_linux::enumerate_joysticks(udev *p_udev) {

	udev_enumerate *enumerate;
	udev_list_entry *devices, *dev_list_entry;
	udev_device *dev;

	enumerate = udev_enumerate_new(p_udev);
	udev_enumerate_add_match_subsystem(enumerate,"input");
	udev_enumerate_add_match_property(enumerate, "ID_INPUT_JOYSTICK", "1");

	udev_enumerate_scan_devices(enumerate);
	devices = udev_enumerate_get_list_entry(enumerate);
	udev_list_entry_foreach(dev_list_entry, devices) {

		const char* path = udev_list_entry_get_name(dev_list_entry);
		dev = udev_device_new_from_syspath(p_udev, path);
		const char* devnode = udev_device_get_devnode(dev);

		if (devnode) {

			String devnode_str = devnode;
			if (devnode_str.find(ignore_str) == -1) {
				joy_mutex->lock();
				open_joystick(devnode);
				joy_mutex->unlock();
			}
		}
		udev_device_unref(dev);
	}
	udev_enumerate_unref(enumerate);
}
Example #4
0
int scan_connected_devices(detector_state_t *state) {
	struct udev_list_entry *cursor;
	struct udev_enumerate *ue;
	struct udev_device *ud;

	const char *devnode = NULL;

	if( !(ue = udev_enumerate_new(state->u)) )
		return 1;

	udev_enumerate_add_match_subsystem(ue, "tty");
	udev_enumerate_add_match_property(ue, "ID_BUS", "usb");
	udev_enumerate_scan_devices(ue);
	cursor = udev_enumerate_get_list_entry(ue);

	do {
		ud = udev_device_new_from_syspath(
			state->u, udev_list_entry_get_name(cursor));

		if( (devnode = udev_device_get_devnode(ud)) )
			spawn_server(state->exec_path, devnode);

		udev_device_unref(ud);
	} while( (cursor = udev_list_entry_get_next(cursor)) );

	udev_enumerate_unref(ue);
	return 0;
}
Example #5
0
int
wgbm_get_default_fd_for_pattern(const char *pattern)
{
    struct udev *ud;
    struct udev_enumerate *en;
    struct udev_list_entry *devices, *entry;
    const char *path, *filename;
    struct udev_device *device;
    int fd;

    ud = udev_new();
    en = udev_enumerate_new(ud);
    udev_enumerate_add_match_subsystem(en, "drm");
    udev_enumerate_add_match_sysname(en, pattern);
    udev_enumerate_scan_devices(en);
    devices = udev_enumerate_get_list_entry(en);

    udev_list_entry_foreach(entry, devices) {
        path = udev_list_entry_get_name(entry);
        device = udev_device_new_from_syspath(ud, path);
        filename = udev_device_get_devnode(device);
        fd = open(filename, O_RDWR | O_CLOEXEC);
        udev_device_unref(device);
        if (fd >= 0) {
            udev_enumerate_unref(en);
            udev_unref(ud);
            return fd;
        }
    }
Example #6
0
/* add or remove a ACL for a given uid from all matching devices */
static void apply_acl_to_devices(uid_t uid, int add)
{
	struct udev *udev;
	struct udev_enumerate *enumerate;
	struct udev_list_entry *list_entry;

	/* iterate over all devices tagged with ACL_SET */
	udev = udev_new();
	enumerate = udev_enumerate_new(udev);
	udev_enumerate_add_match_tag(enumerate, "udev-acl");
	udev_enumerate_scan_devices(enumerate);
	udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(enumerate)) {
		struct udev_device *device;
		const char *node;

		device = udev_device_new_from_syspath(udev_enumerate_get_udev(enumerate),
						      udev_list_entry_get_name(list_entry));
		if (device == NULL)
			continue;
		node = udev_device_get_devnode(device);
		if (node == NULL) {
			udev_device_unref(device);
			continue;
		}
		set_facl(node, uid, add);
		udev_device_unref(device);
	}
	udev_enumerate_unref(enumerate);
	udev_unref(udev);
}
Example #7
0
static int
udev_input_add_devices(struct udev_input *input, struct udev *udev)
{
	struct udev_enumerate *e;
	struct udev_list_entry *entry;
	struct udev_device *device;
	const char *path, *sysname;
	struct udev_seat *seat;
	int devices_found = 0;

	e = udev_enumerate_new(udev);
	udev_enumerate_add_match_subsystem(e, "input");
	udev_enumerate_scan_devices(e);
	udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
		path = udev_list_entry_get_name(entry);
		device = udev_device_new_from_syspath(udev, path);

		sysname = udev_device_get_sysname(device);
		if (strncmp("event", sysname, 5) != 0) {
			udev_device_unref(device);
			continue;
		}

		if (device_added(device, input) < 0) {
			udev_device_unref(device);
			udev_enumerate_unref(e);
			return -1;
		}

		udev_device_unref(device);
	}
Example #8
0
void udevenum(){
    struct udev_enumerate* enumerator = udev_enumerate_new(udev);
    udev_enumerate_add_match_subsystem(enumerator, "usb");
    udev_enumerate_add_match_sysattr(enumerator, "idVendor", V_CORSAIR_STR);
    udev_enumerate_scan_devices(enumerator);
    struct udev_list_entry* devices, *dev_list_entry;
    devices = udev_enumerate_get_list_entry(enumerator);

    udev_list_entry_foreach(dev_list_entry, devices){
        const char* path = udev_list_entry_get_name(dev_list_entry);
        struct udev_device* dev = udev_device_new_from_syspath(udev, path);
        // If the device matches a recognized device ID, open it
        const char* product = udev_device_get_sysattr_value(dev, "idProduct");
        if(!strcmp(product, P_K70_STR)){
            pthread_mutex_lock(&kblistmutex);
            openusb(dev, 70);
            pthread_mutex_unlock(&kblistmutex);
            continue;
        }
        if(!strcmp(product, P_K95_STR)){
            pthread_mutex_lock(&kblistmutex);
            openusb(dev, 95);
            pthread_mutex_unlock(&kblistmutex);
            continue;
        }
        // Free the device if it wasn't used
        udev_device_unref(dev);
    }
    udev_enumerate_unref(enumerator);
}
Example #9
0
void
UdevSubsystem::enumerate_udev_devices()
{
  assert(m_process_match_cb);

  // Enumerate over all devices already connected to the computer
  struct udev_enumerate* enumerate = udev_enumerate_new(m_udev);
  assert(enumerate);

  udev_enumerate_add_match_subsystem(enumerate, "usb");
  // not available yet: udev_enumerate_add_match_is_initialized(enumerate);
  udev_enumerate_scan_devices(enumerate);

  struct udev_list_entry* devices;
  struct udev_list_entry* dev_list_entry;

  devices = udev_enumerate_get_list_entry(enumerate);
  udev_list_entry_foreach(dev_list_entry, devices)
  {
    // name is path, value is NULL
    const char* path = udev_list_entry_get_name(dev_list_entry);

    struct udev_device* device = udev_device_new_from_syspath(m_udev, path);

    // manually filter for devtype, as udev enumerate can't do it by itself
    const char* devtype = udev_device_get_devtype(device);
    if (devtype && strcmp(devtype, "usb_device") == 0)
    {
      m_process_match_cb(device);
    }
    udev_device_unref(device);
  }
  udev_enumerate_unref(enumerate);
}
Example #10
0
GamepadController::GamepadController()
    : m_gamepadDevices(Nix::Gamepads::itemsLengthCap)
{
    m_udev = udev_new();
    m_gamepadsMonitor = udev_monitor_new_from_netlink(m_udev, "udev");

    udev_monitor_enable_receiving(m_gamepadsMonitor);
    udev_monitor_filter_add_match_subsystem_devtype(m_gamepadsMonitor, "input", 0);

    GIOChannel *channel = g_io_channel_unix_new(udev_monitor_get_fd(m_gamepadsMonitor));
    g_io_add_watch(channel, GIOCondition(G_IO_IN), static_cast<GIOFunc>(&GamepadController::onGamepadChange), this);
    g_io_channel_unref(channel);

    struct udev_enumerate* enumerate = udev_enumerate_new(m_udev);
    udev_enumerate_add_match_subsystem(enumerate, "input");
    udev_enumerate_add_match_property(enumerate, "ID_INPUT_JOYSTICK", "1");
    udev_enumerate_scan_devices(enumerate);
    struct udev_list_entry* cur;
    struct udev_list_entry* devs = udev_enumerate_get_list_entry(enumerate);
    udev_list_entry_foreach(cur, devs)
    {
        const char* devname = udev_list_entry_get_name(cur);
        struct udev_device* device = udev_device_new_from_syspath(m_udev, devname);
        if (isGamepadDevice(device))
            registerDevice(udev_device_get_devnode(device));
        udev_device_unref(device);
    }
    udev_enumerate_unref(enumerate);
}
/*
 * Cleans up resources and set exception that will get thrown upon return to java layer.
 */
jstring linux_listusb_clean_throw_exp(JNIEnv *env, int task, const char *expmsg,
		struct jstrarray_list *list, struct udev_device *udev_device,
		struct udev_enumerate *enumerator, struct udev *udev_ctx) {

	(*env)->ExceptionClear(env);
	free_jstrarraylist(list);

	/* free memory first, so even if throwing JNI exception fails, this succeeds. */
	if(task == 1) {
		udev_device_unref(udev_device);
		udev_enumerate_unref(enumerator);
		udev_unref(udev_ctx);
	}else {
	}

	jclass serialComExceptionClass = (*env)->FindClass(env, SCOMEXPCLASS);
	if((serialComExceptionClass == NULL) || ((*env)->ExceptionOccurred(env) != NULL)) {
		(*env)->ExceptionClear(env);
		if(task == 1) {
			LOGE(E_FINDCLASSSCOMEXPSTR, E_NEWSTRUTFSTR);
		}else {
			LOGE(E_FINDCLASSSCOMEXPSTR, expmsg);
		}
		return NULL;
	}

	if(task == 1) {
		(*env)->ThrowNew(env, serialComExceptionClass, E_NEWSTRUTFSTR);
	}else {
		(*env)->ThrowNew(env, serialComExceptionClass, expmsg);
	}

	return NULL;
}
QStringList QDeviceDiscovery::scanConnectedDevices()
{
    QStringList devices;

    if (!m_udev)
        return devices;

    udev_enumerate *ue = udev_enumerate_new(m_udev);
    udev_enumerate_add_match_subsystem(ue, "input");
    udev_enumerate_add_match_subsystem(ue, "drm");

    if (m_types & Device_Mouse)
        udev_enumerate_add_match_property(ue, "ID_INPUT_MOUSE", "1");
    if (m_types & Device_Touchpad)
        udev_enumerate_add_match_property(ue, "ID_INPUT_TOUCHPAD", "1");
    if (m_types & Device_Touchscreen)
        udev_enumerate_add_match_property(ue, "ID_INPUT_TOUCHSCREEN", "1");
    if (m_types & Device_Keyboard) {
        udev_enumerate_add_match_property(ue, "ID_INPUT_KEYBOARD", "1");
        udev_enumerate_add_match_property(ue, "ID_INPUT_KEY", "1");
    }
    if (m_types & Device_Tablet)
        udev_enumerate_add_match_property(ue, "ID_INPUT_TABLET", "1");

    if (udev_enumerate_scan_devices(ue) != 0) {
#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG
        qWarning() << "UDeviceHelper scan connected devices for enumeration failed";
#endif
        return devices;
    }

    udev_list_entry *entry;
    udev_list_entry_foreach (entry, udev_enumerate_get_list_entry(ue)) {
        const char *syspath = udev_list_entry_get_name(entry);
        udev_device *udevice = udev_device_new_from_syspath(m_udev, syspath);
        QString candidate = QString::fromUtf8(udev_device_get_devnode(udevice));
        if ((m_types & Device_InputMask) && candidate.startsWith(QLatin1String(QT_EVDEV_DEVICE)))
            devices << candidate;
        if ((m_types & Device_VideoMask) && candidate.startsWith(QLatin1String(QT_DRM_DEVICE))) {
            if (m_types & Device_DRM_PrimaryGPU) {
                udev_device *pci = udev_device_get_parent_with_subsystem_devtype(udevice, "pci", 0);
                if (pci) {
                    if (qstrcmp(udev_device_get_sysattr_value(pci, "boot_vga"), "1") == 0)
                        devices << candidate;
                }
            } else
                devices << candidate;
        }

        udev_device_unref(udevice);
    }
    udev_enumerate_unref(ue);

#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG
    qWarning() << "UDeviceHelper found matching devices" << devices;
#endif

    return devices;
}
Example #13
0
rw_status_t
rw_udev_register_cb(rw_udev_handle_t *handle,
                    void *userdata, rw_udev_cb_t cb)
{
  struct udev_enumerate *enumerate = NULL;
  struct udev_list_entry *devices, *dev_list_entry;
  int ret = -1;
  rw_status_t status = RW_STATUS_SUCCESS;
  rw_pci_address_t pci_addr;
  rw_pci_device_t *dev;
  struct udev_device *udevice;
  
  handle->cb = cb;
  handle->userdata = userdata;
  
  //walk throight he list and call the callback..
  enumerate = udev_enumerate_new(handle->udev);
  if (!enumerate){
    goto free_and_ret;
  }
  udev_enumerate_add_match_subsystem(enumerate, "net");
  udev_enumerate_scan_devices(enumerate);
  devices = udev_enumerate_get_list_entry(enumerate);
  udev_list_entry_foreach(dev_list_entry, devices) {
    const char *path;
    path = udev_list_entry_get_name(dev_list_entry);
    ret = rw_sys_populate_pci_from_path(path, &pci_addr);
    if (!ret){
      
    }else{
      udevice = udev_device_new_from_syspath(handle->udev, path);
      dev = rw_udev_insert_device(handle, &pci_addr);
      rw_udev_update_device(udevice, dev);
      if (dev){
        handle->cb(handle->userdata, dev, RW_UDEV_DEVICE_ADD);
      }
      udev_device_unref(udevice);
    }
  }
  
  handle->mon = udev_monitor_new_from_netlink(handle->udev, "udev");
  udev_monitor_filter_add_match_subsystem_devtype(handle->mon, "net", NULL);
  udev_monitor_enable_receiving(handle->mon);
  /* Get the file descriptor (fd) for the monitor.
     This fd will get passed to select() */
  handle->fd = udev_monitor_get_fd(handle->mon);

  
ret:
  return status;
  
free_and_ret:
  if (enumerate){
    udev_enumerate_unref(enumerate);
    enumerate = NULL;
  }
  status = RW_STATUS_FAILURE;
  goto ret;
}
Example #14
0
static virInterfacePtr
udevInterfaceLookupByMACString(virConnectPtr conn, const char *macstr)
{
    struct udev_iface_driver *driverState = conn->interfacePrivateData;
    struct udev *udev = udev_ref(driverState->udev);
    struct udev_enumerate *enumerate = NULL;
    struct udev_list_entry *dev_entry;
    struct udev_device *dev;
    const char *name;
    virInterfacePtr ret = NULL;

    enumerate = udevGetDevices(udev, VIR_UDEV_IFACE_ALL);

    if (!enumerate) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("failed to lookup interface with MAC address '%s'"),
                       macstr);
        goto err;
    }

    /* Match on MAC */
    udev_enumerate_add_match_sysattr(enumerate, "address", macstr);

    /* Do the scan to load up the enumeration */
    udev_enumerate_scan_devices(enumerate);

    /* Get a list we can walk */
    dev_entry = udev_enumerate_get_list_entry(enumerate);

    /* Check that we got something back */
    if (!dev_entry) {
        virReportError(VIR_ERR_NO_INTERFACE,
                       _("couldn't find interface with MAC address '%s'"),
                       macstr);
        goto err;
    }

    /* Check that we didn't get multiple items back */
    if (udev_list_entry_get_next(dev_entry)) {
        virReportError(VIR_ERR_MULTIPLE_INTERFACES,
                       _("the MAC address '%s' matches multiple interfaces"),
                       macstr);
        goto err;
    }

    dev = udev_device_new_from_syspath(udev, udev_list_entry_get_name(dev_entry));
    name = udev_device_get_sysname(dev);
    ret = virGetInterface(conn, name, macstr);
    udev_device_unref(dev);

err:
    if (enumerate)
        udev_enumerate_unref(enumerate);
    udev_unref(udev);

    return ret;
}
Example #15
0
udev_enumerate_ptr Root::mk_enumerate() const
{
    udev_enumerate_ptr res
        (udev_enumerate_new(p.get())
         , [](udev_enumerate *p) {
            if (p) udev_enumerate_unref(p);
        });
    return res;
}
  /* 
     This implementation uses udev to retrieve capture devices.
     We support both udev and default v4l2 ways to retrieve 
     devices. Udev is not supported on all systems.

   */
  std::vector<V4L2_Device> v4l2_get_devices() {
    
    std::vector<V4L2_Device> result;
    struct udev* udev;
    struct udev_enumerate* enumerate;
    struct udev_list_entry* devices;
    struct udev_list_entry* dev_list_entry;
    struct udev_device* dev;
 
    udev = udev_new();
    if(!udev) {
      printf("Error: Cannot udev_new()\n");
      return result;
    }
 
    enumerate = udev_enumerate_new(udev);
    udev_enumerate_add_match_subsystem(enumerate, "video4linux");
    udev_enumerate_scan_devices(enumerate);
    devices = udev_enumerate_get_list_entry(enumerate);

    udev_list_entry_foreach(dev_list_entry, devices) {

      /* Get the device by syspath. */
      const char* syspath = udev_list_entry_get_name(dev_list_entry);
      dev = udev_device_new_from_syspath(udev, syspath);

      if(!dev) {
        printf("Error: cannot get the device using the syspath: %s\n", syspath);
        continue;
      }

      V4L2_Device v4l2_device;
      v4l2_device.path = udev_device_get_devnode(dev);

      if(v4l2_device.path.size() == 0) {
        printf("Error: Cannot find devpath.\n");
        continue;
      }

      dev = udev_device_get_parent_with_subsystem_devtype(dev, "usb", "usb_device");

      if(!dev) {
        printf("Error:Cannot find related usb device.\n");
        continue;
      }

      v4l2_device.id_vendor = udev_device_get_sysattr_value(dev, "idVendor");
      v4l2_device.id_product = udev_device_get_sysattr_value(dev, "idProduct");

      result.push_back(v4l2_device);
    }

    udev_enumerate_unref(enumerate);
    udev_unref(udev);
    
    return result;
  }
Example #17
0
void input_init(char* mapfile) {
  #ifdef HAVE_LIBCEC
  init_cec();
  #endif

  udev = udev_new();
  if (!udev) {
    fprintf(stderr, "Can't create udev\n");
    exit(1);
  }

  autoadd = (numDevices == 0);
  if (autoadd) {
    struct udev_enumerate *enumerate = udev_enumerate_new(udev);
    udev_enumerate_add_match_subsystem(enumerate, "input");
    udev_enumerate_scan_devices(enumerate);
    struct udev_list_entry *devices = udev_enumerate_get_list_entry(enumerate);

    struct udev_list_entry *dev_list_entry;
    udev_list_entry_foreach(dev_list_entry, devices) {
      const char *path = udev_list_entry_get_name(dev_list_entry);
      struct udev_device *dev = udev_device_new_from_syspath(udev, path);
      const char *devnode = udev_device_get_devnode(dev);
      int id;
      if (devnode != NULL && sscanf(devnode, "/dev/input/event%d", &id) == 1) {
        input_create(devnode, mapfile);
      }
      udev_device_unref(dev);
    }

    udev_enumerate_unref(enumerate);
  }

  udev_mon = udev_monitor_new_from_netlink(udev, "udev");
  udev_monitor_filter_add_match_subsystem_devtype(udev_mon, "input", NULL);
  udev_monitor_enable_receiving(udev_mon);

  udev_fdindex = numFds++;
  sig_fdindex = numFds++;

  if (fds == NULL)
    fds = malloc(sizeof(struct pollfd)*numFds);
  else
    fds = realloc(fds, sizeof(struct pollfd)*numFds);

  if (fds == NULL) {
    fprintf(stderr, "Not enough memory\n");
    exit(EXIT_FAILURE);
  }

  defaultMapfile = mapfile;
  fds[udev_fdindex].fd = udev_monitor_get_fd(udev_mon);
  fds[udev_fdindex].events = POLLIN;

  main_thread_id = pthread_self();
}
Example #18
0
void GamepadInit(void) {
	struct udev_list_entry* devices;
	struct udev_list_entry* item;
	struct udev_enumerate* enu;
	int i;

	/* initialize connection state */
	for (i = 0; i != GAMEPAD_COUNT; ++i) {
		STATE[i].flags = 0;
		STATE[i].fd = STATE[i].effect = -1;
	}

	/* open the udev handle */
	UDEV = udev_new();
	if (UDEV == NULL) {
		/* FIXME: flag error? */
		return;
	}
	
	/* open monitoring device (safe to fail) */
	MON = udev_monitor_new_from_netlink(UDEV, "udev");
	/* FIXME: flag error if hot-plugging can't be supported? */
	if (MON != NULL) {
		udev_monitor_enable_receiving(MON);
		udev_monitor_filter_add_match_subsystem_devtype(MON, "input", NULL);
	}

	/* enumerate joypad devices */
	enu = udev_enumerate_new(UDEV);
	udev_enumerate_add_match_subsystem(enu, "input");
	udev_enumerate_scan_devices(enu);
	devices = udev_enumerate_get_list_entry(enu);

	udev_list_entry_foreach(item, devices) {
		const char* name;
		const char* sysPath;
		const char* devPath;
		struct udev_device* dev;

		name = udev_list_entry_get_name(item);
		dev = udev_device_new_from_syspath(UDEV, name);
		sysPath = udev_device_get_syspath(dev);
		devPath = udev_device_get_devnode(dev);

		if (sysPath != NULL && devPath != NULL && strstr(sysPath, "/js") != 0) {
			GamepadAddDevice(devPath);
		}

		udev_device_unref(dev);
	}

	/* cleanup */
	udev_enumerate_unref(enu);
}
Example #19
0
/*
 * this function is not powerful because it reinitializes a new udev search each
 * time it would be nicer to call this only one time + one time at each hotplug
 * but it is already very fast, so, let's keep it simple and non intrusive
 */
bool CLinuxInputDevices::IsUdevJoystick(const char *devpath)
{
#if defined(HAVE_LIBUDEV)
  struct udev *udev;
  struct udev_enumerate *enumerate;
  struct udev_list_entry *devices, *dev_list_entry;
  struct udev_device *dev;
  const char *path;
  const char *devfoundpath;

  udev = udev_new();
  if (!udev)
    return false; // can't create udev

  enumerate = udev_enumerate_new(udev);
  if (enumerate == NULL)
  {
    udev_unref(udev);
    return false;
  }

  if (udev_enumerate_add_match_subsystem(enumerate, "input") == 0)
  {
    if (udev_enumerate_add_match_property(enumerate, "ID_INPUT_JOYSTICK", "1") == 0)
    {
      if (udev_enumerate_scan_devices(enumerate) >= 0)
      {
        devices = udev_enumerate_get_list_entry(enumerate);

        udev_list_entry_foreach(dev_list_entry, devices)
        {
          path = udev_list_entry_get_name(dev_list_entry);
          dev = udev_device_new_from_syspath(udev, path);
          if (dev != NULL)
          {
            devfoundpath = udev_device_get_devnode(dev);
            if (devfoundpath != NULL)
            {
              // found (finally !)
              //printf("=> %s\n", devfoundpath);
              if (strcmp(devfoundpath, devpath) == 0)
              {
                udev_device_unref(dev);
                udev_enumerate_unref(enumerate);
                udev_unref(udev);
                return true;
              }
            }
            udev_device_unref(dev);
          }
        }
      }
    }
Example #20
0
int find_and_open_p6s() {
    int result = -1;
    char buf[300];
    memset(buf, 0, sizeof(buf));

    get_usb_device_syspath(ID_VENDOR_YEALINK,ID_PRODUCT_VOIPUSBPHONE, buf);
    int len = strlen(buf);
    if (len==0) {
        return result;
    }
    printf("Found Skypemate P6S USB at %s \n", buf);

    struct udev* udev;
    struct udev_enumerate* enumerate;
    struct udev_list_entry* dev_list_entry;
    struct udev_device* dev;

    udev = udev_new();
    if (udev<0) {
        perror("error creating udev object");
        return result;
    }

    // enumerating all hidraw devices
    enumerate = udev_enumerate_new(udev);
    udev_enumerate_add_match_subsystem(enumerate, "hidraw");
    udev_enumerate_scan_devices(enumerate);

    dev_list_entry = udev_enumerate_get_list_entry(enumerate);
    while ((dev_list_entry!=0) && (result==-1)) {
        const char* syspath = udev_list_entry_get_name(dev_list_entry);
        dev = udev_device_new_from_syspath(udev, syspath);
        // get hidraw USB parent
        struct udev_device* parent = udev_device_get_parent_with_subsystem_devtype(dev, "usb","usb_device");
        if (parent != 0) {
            const char* parent_syspath = udev_device_get_syspath(parent);
            if ( strcmp(buf, parent_syspath) == 0) {
                // found it
                const char* devnode = udev_device_get_devnode(dev);
                printf("Found corresponding hidraw device: %s \n", devnode);
                result = open(devnode, O_RDONLY);
            }
        }

        udev_device_unref(dev);
        dev_list_entry = udev_list_entry_get_next(dev_list_entry);
    }

    udev_enumerate_unref(enumerate);
    udev_unref(udev);
    return result;
}
Example #21
0
File: udev.c Project: sylware/lwl
//we have no seat filters, we account all input devices and all dce6 display
//devices
void lwl_udev_input_cold_plug(void)
{
  struct udev_enumerate *e;

  e=udev_enumerate_new(lwl_udev);
  if(!e){
    PERRC("fatal:cold plug:unable to create enumeration\n");
    exit(LWL_ERR);
  }

  int r=udev_enumerate_add_match_subsystem(e,"input");
  if(r){
    PERRC("fatal:cold plug:unable to select input subsystem for enumeration\n");
    exit(LWL_ERR);
  }

  r=udev_enumerate_add_match_subsystem(e,"dce6_display");
  if(r){
    PERRC("fatal:cold plug:unable to select dce6_display subsystem for"
                                                              " enumeration\n");
    exit(LWL_ERR);
  }

  r=udev_enumerate_scan_devices(e);
  if(r){
    PERRC("fatal:cold plug:error while enumerating input devices\n");
    exit(LWL_ERR);
  }

  struct udev_list_entry *first=udev_enumerate_get_list_entry(e);
  struct udev_list_entry *item=0;
  LOG_UDEV("cold plug:starting input devices enumeration...\n");
  udev_list_entry_foreach(item,first){
    struct udev_device *d=udev_device_new_from_syspath(lwl_udev,
                                                udev_list_entry_get_name(item));

    if(!d) continue;

    void *subsys=(void*)udev_device_get_subsystem(d);

    if(!strncmp(INPUT_STR,subsys,cs_n(INPUT_STR)))
      input_device_add(d);
    else if(!strncmp(DCE6_DISPLAY_STR,subsys,cs_n(DCE6_DISPLAY_STR))){
      struct gbl *o=output_plugged(d);
      if(o) registry_gbl_ref(o);
    }
    udev_device_unref(d);
  }
  LOG_UDEV("cold plug:end of input devices enumeration\n");
  udev_enumerate_unref(e);
}
Example #22
0
static int
udevNumOfInterfacesByStatus(virConnectPtr conn, virUdevStatus status,
                            virInterfaceObjListFilter filter)
{
    struct udev_iface_driver *driverState = conn->interfacePrivateData;
    struct udev *udev = udev_ref(driverState->udev);
    struct udev_enumerate *enumerate = NULL;
    struct udev_list_entry *devices;
    struct udev_list_entry *dev_entry;
    int count = 0;

    enumerate = udevGetDevices(udev, status);

    if (!enumerate) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("failed to get number of %s interfaces on host"),
                       virUdevStatusString(status));
        count = -1;
        goto cleanup;
    }

    /* Do the scan to load up the enumeration */
    udev_enumerate_scan_devices(enumerate);

    /* Get a list we can walk */
    devices = udev_enumerate_get_list_entry(enumerate);

    /* For each item so we can count */
    udev_list_entry_foreach(dev_entry, devices) {
        struct udev_device *dev;
        const char *path;
        virInterfaceDefPtr def;

        path = udev_list_entry_get_name(dev_entry);
        dev = udev_device_new_from_syspath(udev, path);

        def = udevGetMinimalDefForDevice(dev);
        if (filter(conn, def))
            count++;
        udev_device_unref(dev);
        virInterfaceDefFree(def);
    }

 cleanup:
    if (enumerate)
        udev_enumerate_unref(enumerate);
    udev_unref(udev);

    return count;
}
Example #23
0
int show_sysfs(const char *seat, const char *prefix, unsigned n_columns) {
        struct udev *udev;
        struct udev_list_entry *first = NULL;
        struct udev_enumerate *e;
        int r;

        if (n_columns <= 0)
                n_columns = columns();

        if (!prefix)
                prefix = "";

        if (isempty(seat))
                seat = "seat0";

        udev = udev_new();
        if (!udev)
                return -ENOMEM;

        e = udev_enumerate_new(udev);
        if (!e) {
                r = -ENOMEM;
                goto finish;
        }

        if (!streq(seat, "seat0"))
                r = udev_enumerate_add_match_tag(e, seat);
        else
                r = udev_enumerate_add_match_tag(e, "seat");

        if (r < 0)
                goto finish;

        r = udev_enumerate_scan_devices(e);
        if (r < 0)
                goto finish;

        first = udev_enumerate_get_list_entry(e);
        if (first)
                show_sysfs_one(udev, seat, &first, "/", prefix, n_columns);

finish:
        if (e)
                udev_enumerate_unref(e);

        if (udev)
                udev_unref(udev);

        return r;
}
Example #24
0
static int
get_usbinfo(int bus, int dev, usbinfo_t *ui)
{
  struct udev_enumerate *enumerate;
  struct udev_list_entry *devices, *dev_list_entry;
  struct udev_device *udev_dev;
  char bus_str[16], dev_str[16];
  int vendor, product;

  enumerate = udev_enumerate_new(udev_handle);
  if (!enumerate) {
    xd_log(LOG_ERR, "Can't create enumeration");
    return -ENOMEM;
  }

  snprintf(bus_str, sizeof(bus_str), "%d", bus);
  snprintf(dev_str, sizeof(dev_str), "%d", dev);

  udev_enumerate_add_match_subsystem(enumerate, "usb");
  udev_enumerate_add_match_sysattr(enumerate, "busnum", bus_str);
  udev_enumerate_add_match_sysattr(enumerate, "devnum", dev_str);
  udev_enumerate_scan_devices(enumerate);
  devices = udev_enumerate_get_list_entry(enumerate);
  udev_list_entry_foreach(dev_list_entry, devices) {
    const char *path;

    path = udev_list_entry_get_name(dev_list_entry);
    udev_dev = udev_device_new_from_syspath(udev_handle, path);
    sscanf(udev_device_get_sysattr_value(udev_dev, "idVendor"), "%x", &vendor);
    sscanf(udev_device_get_sysattr_value(udev_dev, "idProduct"), "%x", &product);
    udev_device_unref(udev_dev);
    udev_enumerate_unref(enumerate);
    return usbowls_build_usbinfo(bus, dev, vendor, product, ui);
  }
  udev_enumerate_unref(enumerate);
  return -ENOENT;
}
Example #25
0
static int usb_dongle_probe(struct udev *udev, const char *subsystem)
{
	struct udev_enumerate *udev_enumerate;
	int ret;

	mylog_trace("%s enumerate '%s'", __func__, subsystem == NULL ? "<all>" : subsystem);
	udev_enumerate = udev_enumerate_new(udev);
	if (udev_enumerate == NULL)
		return -1;
	udev_enumerate_add_match_subsystem(udev_enumerate, subsystem);
	udev_enumerate_scan_devices(udev_enumerate);
	ret = usb_dongle_probe_print_list(udev_enumerate);
	udev_enumerate_unref(udev_enumerate);
	return ret;
}
Example #26
0
int Storage::enumerate_mmcblk_devices(struct udev *udev)
{
    struct udev_enumerate *udev_enumerate;

    qDebug() << Q_FUNC_INFO << ": enumerate 'block' devices";
    udev_enumerate = udev_enumerate_new(udev);
    if (udev_enumerate == NULL)
        return -1;
    udev_enumerate_add_match_subsystem(udev_enumerate,"block");
    udev_enumerate_scan_devices(udev_enumerate);
    struct udev_list_entry *list_entry;

    udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(udev_enumerate))
    {
        struct udev_device *device;

        device = udev_device_new_from_syspath(udev_enumerate_get_udev(udev_enumerate),
                                      udev_list_entry_get_name(list_entry));
        if (device != NULL) {
            QString sysname("/dev/");
            sysname += QString(udev_device_get_sysname(device));
            if (sysname.contains(QRegExp("mmcblk[1-9]\\d*"))  || sysname.contains(QRegExp("mmcblk[1-9]")))
            {
                QString path = udev_device_get_devpath(device);
                QString parent = udev_device_get_devpath( udev_device_get_parent (device));
                QString action = "add";
                QString devtype = udev_device_get_devtype(device);

                qDebug() << "Enumerate device " << path << ":" << action;
                qDebug() << "    Got Device";
                qDebug() << "    Node: " <<  udev_device_get_devnode(device);
                qDebug() << "    Subsystem: "<< udev_device_get_subsystem(device);
                qDebug() << "    Devtype: " << devtype;
                qDebug() << "    Action: " << action;
                qDebug() << "    Sysname: " << sysname;
                qDebug() << "    sysnum: " << udev_device_get_sysnum (device);
                qDebug() << "    parent: " << parent;

                processRemovableUdevEvents(devtype, path, sysname, action);
            }

            udev_device_unref(device);
        }
    }

    udev_enumerate_unref(udev_enumerate);
    return 0;
}
Example #27
0
void Init()
{
  s_devnode_name_map.clear();

  // During initialization we use udev to iterate over all /dev/input/event* devices.
  // Note: the Linux kernel is currently limited to just 32 event devices. If this ever
  //            changes, hopefully udev will take care of this.

  udev* udev = udev_new();
  _assert_msg_(PAD, udev != nullptr, "Couldn't initialize libudev.");

  // List all input devices
  udev_enumerate* enumerate = udev_enumerate_new(udev);
  udev_enumerate_add_match_subsystem(enumerate, "input");
  udev_enumerate_scan_devices(enumerate);
  udev_list_entry* devices = udev_enumerate_get_list_entry(enumerate);

  // Iterate over all input devices
  udev_list_entry* dev_list_entry;
  udev_list_entry_foreach(dev_list_entry, devices)
  {
    const char* path = udev_list_entry_get_name(dev_list_entry);

    udev_device* dev = udev_device_new_from_syspath(udev, path);

    const char* devnode = udev_device_get_devnode(dev);
    // We only care about devices which we have read/write access to.
    if (devnode && access(devnode, W_OK) == 0)
    {
      // Unfortunately udev gives us no way to filter out the non event device interfaces.
      // So we open it and see if it works with evdev ioctls or not.
      std::string name = GetName(devnode);
      auto input = std::make_shared<evdevDevice>(devnode);

      if (input->IsInteresting())
      {
        g_controller_interface.AddDevice(std::move(input));
        s_devnode_name_map.insert(std::pair<std::string, std::string>(devnode, name));
      }
    }
    udev_device_unref(dev);
  }
  udev_enumerate_unref(enumerate);
  udev_unref(udev);

  StartHotplugThread();
}
Example #28
0
cairo_drm_device_t *
cairo_drm_device_default (void)
{
    struct udev *udev;
    struct udev_enumerate *e;
    struct udev_list_entry *entry;
    cairo_drm_device_t *dev;

    /* optimistic atomic pointer read */
    dev = _cairo_drm_default_device;
    if (dev != NULL)
	return dev;

    udev = udev_new();
    if (udev == NULL) {
	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
	return (cairo_drm_device_t *) &_nil_device;
    }

    e = udev_enumerate_new (udev);
    udev_enumerate_add_match_subsystem (e, "drm");
    udev_enumerate_scan_devices (e);
    udev_list_entry_foreach (entry, udev_enumerate_get_list_entry (e)) {
	struct udev_device *device;

	device =
	    udev_device_new_from_syspath (udev,
		    udev_list_entry_get_name (entry));

	dev = cairo_drm_device_get (device);

	udev_device_unref (device);

	if (dev != NULL) {
	    if (dev->fd == -1) { /* try again, we may find a usable card */
		cairo_drm_device_destroy (dev);
		dev = NULL;
	    } else
		break;
	}
    }
    udev_enumerate_unref (e);
    udev_unref (udev);

    cairo_drm_device_destroy (dev); /* owned by _cairo_drm_default_device */
    return dev;
}
bool QUdevService::isPropertyAvailable(const char *property, const char *value)
{
    bool available = false;
    struct udev_enumerate *enumerate = 0;
    if (context) {
        if ((enumerate = udev_enumerate_new(context))
            && (0 == udev_enumerate_add_match_property(enumerate, property, value))
            && (0 == udev_enumerate_scan_devices(enumerate))) {
            available = (0 != udev_enumerate_get_list_entry(enumerate));
        }
    }

    if (enumerate)
        udev_enumerate_unref(enumerate);

    return available;
}
bool QUdevService::isSubsystemAvailable(const char *subsystem)
{
    bool available = false;
    struct udev_enumerate *enumerate = 0;
    if (context) {
        if ((enumerate = udev_enumerate_new(context))
            && (0 == udev_enumerate_add_match_subsystem(enumerate, subsystem))
            && (0 == udev_enumerate_scan_devices(enumerate))) {
            available = (0 != udev_enumerate_get_list_entry(enumerate));
        }
    }

    if (enumerate)
        udev_enumerate_unref(enumerate);

    return available;
}