1 /* 2 * HID driver for Elo Accutouch touchscreens 3 * 4 * Copyright (c) 2016, Collabora Ltd. 5 * Copyright (c) 2016, General Electric Company 6 * 7 * based on hid-penmount.c 8 * Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com> 9 */ 10 11 /* 12 * This program is free software; you can redistribute it and/or modify it 13 * under the terms of the GNU General Public License as published by the Free 14 * Software Foundation; either version 2 of the License, or (at your option) 15 * any later version. 16 */ 17 18 #include <linux/hid.h> 19 #include <linux/module.h> 20 #include "hid-ids.h" 21 22 static int accutouch_input_mapping(struct hid_device *hdev, 23 struct hid_input *hi, 24 struct hid_field *field, 25 struct hid_usage *usage, 26 unsigned long **bit, int *max) 27 { 28 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { 29 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 30 return 1; 31 } 32 33 return 0; 34 } 35 36 static const struct hid_device_id accutouch_devices[] = { 37 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_ACCUTOUCH_2216) }, 38 { } 39 }; 40 MODULE_DEVICE_TABLE(hid, accutouch_devices); 41 42 static struct hid_driver accutouch_driver = { 43 .name = "hid-accutouch", 44 .id_table = accutouch_devices, 45 .input_mapping = accutouch_input_mapping, 46 }; 47 48 module_hid_driver(accutouch_driver); 49 50 MODULE_AUTHOR("Martyn Welch <martyn.welch@collabora.co.uk"); 51 MODULE_DESCRIPTION("Elo Accutouch HID TouchScreen driver"); 52 MODULE_LICENSE("GPL"); 53