cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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hid-accutouch.c (1226B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * HID driver for Elo Accutouch touchscreens
      4 *
      5 * Copyright (c) 2016, Collabora Ltd.
      6 * Copyright (c) 2016, General Electric Company
      7 *
      8 * based on hid-penmount.c
      9 *  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");