Merge tag 'gcc-plugins-v4.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
[cascardo/linux.git] / drivers / hid / hid-penmount.c
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
21 static 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
37 static const struct hid_device_id penmount_devices[] = {
38         { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },
39         { }
40 };
41 MODULE_DEVICE_TABLE(hid, penmount_devices);
42
43 static struct hid_driver penmount_driver = {
44         .name = "hid-penmount",
45         .id_table = penmount_devices,
46         .input_mapping = penmount_input_mapping,
47 };
48
49 module_hid_driver(penmount_driver);
50
51 MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>");
52 MODULE_DESCRIPTION("PenMount HID TouchScreen driver");
53 MODULE_LICENSE("GPL");