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 void 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 dev_info(&hdev->dev, "Fixing up Elecom BM084 " 28 "report descriptor.\n"); 29 rdesc[47] = 0x00; 30 } 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}; 44 45static int __init elecom_init(void) 46{ 47 return hid_register_driver(&elecom_driver); 48} 49 50static void __exit elecom_exit(void) 51{ 52 hid_unregister_driver(&elecom_driver); 53} 54 55module_init(elecom_init); 56module_exit(elecom_exit); 57MODULE_LICENSE("GPL"); 58