1/*
2 *  HID driver for Elecom BM084 (bluetooth mouse).
3 *  Removes a non-existing horizontal wheel from
4 *  the HID descriptor.
5 *  (This module is based on "hid-ortek".)
6 *
7 *  Copyright (c) 2010 Richard Nauber <Richard.Nauber@gmail.com>
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 */
16
17#include <linux/device.h>
18#include <linux/hid.h>
19#include <linux/module.h>
20
21#include "hid-ids.h"
22
23static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
24		unsigned int *rsize)
25{
26	if (*rsize >= 48 && rdesc[46] == 0x05 && rdesc[47] == 0x0c) {
27		hid_info(hdev, "Fixing up Elecom BM084 report descriptor\n");
28		rdesc[47] = 0x00;
29	}
30	return rdesc;
31}
32
33static const struct hid_device_id elecom_devices[] = {
34	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084)},
35	{ }
36};
37MODULE_DEVICE_TABLE(hid, elecom_devices);
38
39static struct hid_driver elecom_driver = {
40	.name = "elecom",
41	.id_table = elecom_devices,
42	.report_fixup = elecom_report_fixup
43};
44module_hid_driver(elecom_driver);
45
46MODULE_LICENSE("GPL");
47