HID: introduce list for hiddev creation forcing

Introduce a list of devices for which there is need to
force a creation of the hiddev interface, but still they
are operated by generic driver (i.e. certain UPS).

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 29 insertions, 18 deletions

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 6a730df336b4..ec299f56c58b 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1113,6 +1113,33 @@ int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int i
 }
 EXPORT_SYMBOL_GPL(hid_input_report);
 
+static bool hid_match_one_id(struct hid_device *hdev,
+                const struct hid_device_id *id)
+{
+        return id->bus == hdev->bus &&
+                (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
+                (id->product == HID_ANY_ID || id->product == hdev->product);
+}
+
+static const struct hid_device_id *hid_match_id(struct hid_device *hdev,
+                const struct hid_device_id *id)
+{
+        for (; id->bus; id++)
+                if (hid_match_one_id(hdev, id))
+                        return id;
+
+        return NULL;
+}
+
+static const struct hid_device_id hid_hiddev_list[] = {
+        { }
+};
+
+static bool hid_hiddev(struct hid_device *hdev)
+{
+        return !!hid_match_id(hdev, hid_hiddev_list);
+}
+
 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
 {
         static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
@@ -1126,6 +1153,8 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
 
         if (hdev->bus != BUS_USB)
                 connect_mask &= ~HID_CONNECT_HIDDEV;
+        if (hid_hiddev(hdev))
+                connect_mask |= HID_CONNECT_HIDDEV_FORCE;
 
         if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
                                 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
@@ -1187,24 +1216,6 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
 }
 EXPORT_SYMBOL_GPL(hid_connect);
 
-static bool hid_match_one_id(struct hid_device *hdev,
-                const struct hid_device_id *id)
-{
-        return id->bus == hdev->bus &&
-                (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
-                (id->product == HID_ANY_ID || id->product == hdev->product);
-}
-
-static const struct hid_device_id *hid_match_id(struct hid_device *hdev,
-                const struct hid_device_id *id)
-{
-        for (; id->bus; id++)
-                if (hid_match_one_id(hdev, id))
-                        return id;
-
-        return NULL;
-}
-
 static const struct hid_device_id hid_blacklist[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },