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// SPDX-License-Identifier: GPL-2.0-or-later /* * HID driver for EVision devices * For now, only ignore bogus consumer reports * sent after the keyboard has been configured * * Copyright (c) 2022 Philippe Valembois */ #include <linux/device.h> #include <linux/input.h> #include <linux/hid.h> #include <linux/module.h> #include "hid-ids.h" static int evision_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) return 0; /* Ignore key down event */ if ((usage->hid & HID_USAGE) >> 8 == 0x05) return -1; /* Ignore key up event */ if ((usage->hid & HID_USAGE) >> 8 == 0x06) return -1; switch (usage->hid & HID_USAGE) { /* Ignore configuration saved event */ case 0x0401: return -1; /* Ignore reset event */ case 0x0402: return -1; } return 0; } static const struct hid_device_id evision_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_EVISION, USB_DEVICE_ID_EVISION_ICL01) }, { } }; MODULE_DEVICE_TABLE(hid, evision_devices); static struct hid_driver evision_driver = { .name = "evision", .id_table = evision_devices, .input_mapping = evision_input_mapping, }; module_hid_driver(evision_driver); MODULE_LICENSE("GPL"); |