50 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * HID driver for Elo Accutouch touchscreens4 *5 * Copyright (c) 2016, Collabora Ltd.6 * Copyright (c) 2016, General Electric Company7 *8 * based on hid-penmount.c9 * Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com>10 */11 12/*13 */14 15#include <linux/hid.h>16#include <linux/module.h>17#include "hid-ids.h"18 19static int accutouch_input_mapping(struct hid_device *hdev,20 struct hid_input *hi,21 struct hid_field *field,22 struct hid_usage *usage,23 unsigned long **bit, int *max)24{25 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {26 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);27 return 1;28 }29 30 return 0;31}32 33static const struct hid_device_id accutouch_devices[] = {34 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_ACCUTOUCH_2216) },35 { }36};37MODULE_DEVICE_TABLE(hid, accutouch_devices);38 39static struct hid_driver accutouch_driver = {40 .name = "hid-accutouch",41 .id_table = accutouch_devices,42 .input_mapping = accutouch_input_mapping,43};44 45module_hid_driver(accutouch_driver);46 47MODULE_AUTHOR("Martyn Welch <martyn.welch@collabora.co.uk");48MODULE_DESCRIPTION("Elo Accutouch HID TouchScreen driver");49MODULE_LICENSE("GPL");50