From dbd0d90aa90bb8a8ab905cfe6d033270cc4cef29 Mon Sep 17 00:00:00 2001
From: Sophie Tauchert <999eagle@999eagle.moe>
Date: Sun, 3 Jan 2021 13:20:06 +0100
Subject: [PATCH] razeraccessory: only match with one interface
This prevents the driver to be bound to multiple interfaces which is
both unneccessary and is not supposed to happen.
---
driver/razeraccessory_driver.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/driver/razeraccessory_driver.c b/driver/razeraccessory_driver.c
index 833ca112..05d55c12 100644
--- a/driver/razeraccessory_driver.c
+++ b/driver/razeraccessory_driver.c
@@ -1041,6 +1041,26 @@ static int razer_input_mapping(struct hid_device *hdev, struct hid_input *hi, st
return 0;
}
+/**
+ * Match method checks whether this driver should be used for a given HID device
+ */
+static bool razer_accessory_match(struct hid_device *hdev, bool ignore_special_driver)
+{
+ struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+ struct usb_device *usb_dev = interface_to_usbdev(intf);
+
+ switch (usb_dev->descriptor.idProduct) {
+ case USB_DEVICE_ID_RAZER_KRAKEN_KITTY_EDITION:
+ case USB_DEVICE_ID_RAZER_MOUSE_BUNGEE_V3_CHROMA:
+ if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
+ dev_info(&intf->dev, "skipping secondary interface\n");
+ return false;
+ }
+ }
+
+ return true;
+}
+
/**
* Probe method is ran whenever a device is binded to the driver
*/
@@ -1348,6 +1368,7 @@ MODULE_DEVICE_TABLE(hid, razer_devices);
static struct hid_driver razer_accessory_driver = {
.name = "razeraccessory",
.id_table = razer_devices,
+ .match = razer_accessory_match,
.probe = razer_accessory_probe,
.remove = razer_accessory_disconnect,
.raw_event = razer_raw_event,
--
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