1 files changed, 75 insertions, 1 deletions

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index ea5f8bc900e0..699547ce257f 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1113,6 +1113,80 @@ int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int i
 }
 EXPORT_SYMBOL_GPL(hid_input_report);
 
+int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
+{
+	static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
+		"Joystick", "Gamepad", "Keyboard", "Keypad",
+		"Multi-Axis Controller"
+	};
+	const char *type, *bus;
+	char buf[64];
+	unsigned int i;
+	int len;
+
+	if (hdev->bus != BUS_USB)
+		connect_mask &= ~HID_CONNECT_HIDDEV;
+
+	if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
+				connect_mask & HID_CONNECT_HIDINPUT_FORCE))
+		hdev->claimed |= HID_CLAIMED_INPUT;
+	if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
+			!hdev->hiddev_connect(hdev,
+				connect_mask & HID_CONNECT_HIDDEV_FORCE))
+		hdev->claimed |= HID_CLAIMED_HIDDEV;
+	if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
+		hdev->claimed |= HID_CLAIMED_HIDRAW;
+
+	if (!hdev->claimed) {
+		dev_err(&hdev->dev, "claimed by neither input, hiddev nor "
+				"hidraw\n");
+		return -ENODEV;
+	}
+
+	if ((hdev->claimed & HID_CLAIMED_INPUT) &&
+			(connect_mask & HID_CONNECT_FF) && hdev->ff_init)
+		hdev->ff_init(hdev);
+
+	len = 0;
+	if (hdev->claimed & HID_CLAIMED_INPUT)
+		len += sprintf(buf + len, "input");
+	if (hdev->claimed & HID_CLAIMED_HIDDEV)
+		len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
+				hdev->minor);
+	if (hdev->claimed & HID_CLAIMED_HIDRAW)
+		len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
+				((struct hidraw *)hdev->hidraw)->minor);
+
+	type = "Device";
+	for (i = 0; i < hdev->maxcollection; i++) {
+		struct hid_collection *col = &hdev->collection[i];
+		if (col->type == HID_COLLECTION_APPLICATION &&
+		   (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
+		   (col->usage & 0xffff) < ARRAY_SIZE(types)) {
+			type = types[col->usage & 0xffff];
+			break;
+		}
+	}
+
+	switch (hdev->bus) {
+	case BUS_USB:
+		bus = "USB";
+		break;
+	case BUS_BLUETOOTH:
+		bus = "BLUETOOTH";
+		break;
+	default:
+		bus = "<UNKNOWN>";
+	}
+
+	dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
+			buf, bus, hdev->version >> 8, hdev->version & 0xff,
+			type, hdev->name, hdev->phys);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(hid_connect);
+
 static bool hid_match_one_id(struct hid_device *hdev,
 		const struct hid_device_id *id)
 {
@@ -1238,7 +1312,7 @@ static int hid_device_probe(struct device *dev)
 		} else { /* default probe */
 			ret = hid_parse(hdev);
 			if (!ret)
-				ret = hid_hw_start(hdev);
+				ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 		}
 		if (ret)
 			hdev->driver = NULL;