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path: root/drivers/hid/hid-core.c
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Diffstat (limited to 'drivers/hid/hid-core.c')
-rw-r--r--drivers/hid/hid-core.c76
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;