tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/*
2 * HID driver for PenMount touchscreens
3 *
4 * Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com>
5 *
6 * based on hid-penmount copyrighted by
7 * PenMount Touch Solutions <penmount <at> seed.net.tw>
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/module.h>
18#include <linux/hid.h>
19#include "hid-ids.h"
20
21static int penmount_input_mapping(struct hid_device *hdev,
22 struct hid_input *hi, struct hid_field *field,
23 struct hid_usage *usage, unsigned long **bit, int *max)
24{
25 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
26 if (((usage->hid - 1) & HID_USAGE) == 0) {
27 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
28 return 1;
29 } else {
30 return -1;
31 }
32 }
33
34 return 0;
35}
36
37static const struct hid_device_id penmount_devices[] = {
38 { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },
39 { }
40};
41MODULE_DEVICE_TABLE(hid, penmount_devices);
42
43static struct hid_driver penmount_driver = {
44 .name = "hid-penmount",
45 .id_table = penmount_devices,
46 .input_mapping = penmount_input_mapping,
47};
48
49module_hid_driver(penmount_driver);
50
51MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>");
52MODULE_DESCRIPTION("PenMount HID TouchScreen driver");
53MODULE_LICENSE("GPL");