1/*
2 *  HID driver for Keytouch devices not fully compliant with HID standard
3 *
4 *  Copyright (c) 2011 Jiri Kosina
5 */
6
7/*
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
11 * any later version.
12 */
13
14#include <linux/device.h>
15#include <linux/hid.h>
16#include <linux/module.h>
17
18#include "hid-ids.h"
19
20/* Replace the broken report descriptor of this device with rather
21 * a default one */
22static __u8 keytouch_fixed_rdesc[] = {
230x05, 0x01, 0x09, 0x06, 0xa1, 0x01, 0x05, 0x07, 0x19, 0xe0, 0x29, 0xe7, 0x15,
240x00, 0x25, 0x01, 0x75, 0x01, 0x95, 0x08, 0x81, 0x02, 0x95, 0x01, 0x75, 0x08,
250x81, 0x01, 0x95, 0x03, 0x75, 0x01, 0x05, 0x08, 0x19, 0x01, 0x29, 0x03, 0x91,
260x02, 0x95, 0x05, 0x75, 0x01, 0x91, 0x01, 0x95, 0x06, 0x75, 0x08, 0x15, 0x00,
270x26, 0xff, 0x00, 0x05, 0x07, 0x19, 0x00, 0x2a, 0xff, 0x00, 0x81, 0x00, 0xc0
28};
29
30static __u8 *keytouch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
31		unsigned int *rsize)
32{
33	hid_info(hdev, "fixing up Keytouch IEC report descriptor\n");
34
35	rdesc = keytouch_fixed_rdesc;
36	*rsize = sizeof(keytouch_fixed_rdesc);
37
38	return rdesc;
39}
40
41static const struct hid_device_id keytouch_devices[] = {
42	{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
43	{ }
44};
45MODULE_DEVICE_TABLE(hid, keytouch_devices);
46
47static struct hid_driver keytouch_driver = {
48	.name = "keytouch",
49	.id_table = keytouch_devices,
50	.report_fixup = keytouch_report_fixup,
51};
52module_hid_driver(keytouch_driver);
53
54MODULE_LICENSE("GPL");
55MODULE_AUTHOR("Jiri Kosina");
56