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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * HID driver for PenMount touchscreens4 *5 * Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com>6 *7 * based on hid-penmount copyrighted by8 * PenMount Touch Solutions <penmount <at> seed.net.tw>9 */10 11/*12 */13 14#include <linux/module.h>15#include <linux/hid.h>16#include "hid-ids.h"17 18static int penmount_input_mapping(struct hid_device *hdev,19 struct hid_input *hi, struct hid_field *field,20 struct hid_usage *usage, unsigned long **bit, int *max)21{22 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {23 if (((usage->hid - 1) & HID_USAGE) == 0) {24 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);25 return 1;26 } else {27 return -1;28 }29 }30 31 return 0;32}33 34static const struct hid_device_id penmount_devices[] = {35 { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },36 { }37};38MODULE_DEVICE_TABLE(hid, penmount_devices);39 40static struct hid_driver penmount_driver = {41 .name = "hid-penmount",42 .id_table = penmount_devices,43 .input_mapping = penmount_input_mapping,44};45 46module_hid_driver(penmount_driver);47 48MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>");49MODULE_DESCRIPTION("PenMount HID TouchScreen driver");50MODULE_LICENSE("GPL");51