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path: root/drivers/hid/hid-elo.c
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Diffstat (limited to 'drivers/hid/hid-elo.c')
-rw-r--r--drivers/hid/hid-elo.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/hid/hid-elo.c b/drivers/hid/hid-elo.c
index 5eea6fe0d7bd..cf17bdd14d9c 100644
--- a/drivers/hid/hid-elo.c
+++ b/drivers/hid/hid-elo.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for ELO usb touchscreen 4000/4500
*
* Copyright (c) 2013 Jiri Slaby
*
* Data parsing taken from elousb driver by Vojtech Pavlik.
- *
- * This driver is licensed under the terms of GPLv2.
*/
#include <linux/hid.h>
@@ -230,6 +229,9 @@ static int elo_probe(struct hid_device *hdev, const struct hid_device_id *id)
struct elo_priv *priv;
int ret;
+ if (!hid_is_usb(hdev))
+ return -EINVAL;
+
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
@@ -311,4 +313,5 @@ static void __exit elo_driver_exit(void)
module_exit(elo_driver_exit);
MODULE_AUTHOR("Jiri Slaby <jslaby@suse.cz>");
+MODULE_DESCRIPTION("HID driver for ELO usb touchscreen 4000/4500");
MODULE_LICENSE("GPL");