| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
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| 2 | /* |
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| 3 | * HID driver for PenMount touchscreens |
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| 4 | * |
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| 5 | * Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com> |
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| 6 | * |
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| 7 | * based on hid-penmount copyrighted by |
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| 8 | * PenMount Touch Solutions <penmount <at> seed.net.tw> |
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| 9 | */ |
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| 10 | |
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| 11 | /* |
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| 12 | */ |
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| 13 | |
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| 14 | #include <linux/module.h> |
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| 15 | #include <linux/hid.h> |
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| 16 | #include "hid-ids.h" |
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| 17 | |
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| 18 | static int penmount_input_mapping(struct hid_device *hdev, |
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| 19 | struct hid_input *hi, struct hid_field *field, |
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| 20 | struct hid_usage *usage, unsigned long **bit, int *max) |
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| 21 | { |
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| 22 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { |
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| 23 | if (((usage->hid - 1) & HID_USAGE) == 0) { |
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| 24 | hid_map_usage(hidinput: hi, usage, bit, max, EV_KEY, BTN_TOUCH); |
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| 25 | return 1; |
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| 26 | } else { |
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| 27 | return -1; |
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| 28 | } |
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| 29 | } |
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| 30 | |
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| 31 | return 0; |
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| 32 | } |
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| 33 | |
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| 34 | static const struct hid_device_id penmount_devices[] = { |
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| 35 | { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) }, |
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| 36 | { } |
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| 37 | }; |
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| 38 | MODULE_DEVICE_TABLE(hid, penmount_devices); |
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| 39 | |
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| 40 | static struct hid_driver penmount_driver = { |
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| 41 | .name = "hid-penmount" , |
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| 42 | .id_table = penmount_devices, |
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| 43 | .input_mapping = penmount_input_mapping, |
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| 44 | }; |
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| 45 | |
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| 46 | module_hid_driver(penmount_driver); |
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| 47 | |
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| 48 | MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>" ); |
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| 49 | MODULE_DESCRIPTION("PenMount HID TouchScreen driver" ); |
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| 50 | MODULE_LICENSE("GPL" ); |
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| 51 | |
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