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 23 static __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 dev_info(&hdev->dev, "Fixing up Elecom BM084 " 28 "report descriptor.\n"); 29 rdesc[47] = 0x00; 30 } 31 return rdesc; 32 } 33 34 static const struct hid_device_id elecom_devices[] = { 35 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084)}, 36 { } 37 }; 38 MODULE_DEVICE_TABLE(hid, elecom_devices); 39 40 static struct hid_driver elecom_driver = { 41 .name = "elecom", 42 .id_table = elecom_devices, 43 .report_fixup = elecom_report_fixup 44 }; 45 46 static int __init elecom_init(void) 47 { 48 return hid_register_driver(&elecom_driver); 49 } 50 51 static void __exit elecom_exit(void) 52 { 53 hid_unregister_driver(&elecom_driver); 54 } 55 56 module_init(elecom_init); 57 module_exit(elecom_exit); 58 MODULE_LICENSE("GPL"); 59