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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * HID driver for Keytouch devices not fully compliant with HID standard4 *5 * Copyright (c) 2011 Jiri Kosina6 */7 8/*9 */10 11#include <linux/device.h>12#include <linux/hid.h>13#include <linux/module.h>14 15#include "hid-ids.h"16 17/* Replace the broken report descriptor of this device with rather18 * a default one */19static const __u8 keytouch_fixed_rdesc[] = {200x05, 0x01, 0x09, 0x06, 0xa1, 0x01, 0x05, 0x07, 0x19, 0xe0, 0x29, 0xe7, 0x15,210x00, 0x25, 0x01, 0x75, 0x01, 0x95, 0x08, 0x81, 0x02, 0x95, 0x01, 0x75, 0x08,220x81, 0x01, 0x95, 0x03, 0x75, 0x01, 0x05, 0x08, 0x19, 0x01, 0x29, 0x03, 0x91,230x02, 0x95, 0x05, 0x75, 0x01, 0x91, 0x01, 0x95, 0x06, 0x75, 0x08, 0x15, 0x00,240x26, 0xff, 0x00, 0x05, 0x07, 0x19, 0x00, 0x2a, 0xff, 0x00, 0x81, 0x00, 0xc025};26 27static const __u8 *keytouch_report_fixup(struct hid_device *hdev, __u8 *rdesc,28 unsigned int *rsize)29{30 hid_info(hdev, "fixing up Keytouch IEC report descriptor\n");31 32 *rsize = sizeof(keytouch_fixed_rdesc);33 return keytouch_fixed_rdesc;34}35 36static const struct hid_device_id keytouch_devices[] = {37 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },38 { }39};40MODULE_DEVICE_TABLE(hid, keytouch_devices);41 42static struct hid_driver keytouch_driver = {43 .name = "keytouch",44 .id_table = keytouch_devices,45 .report_fixup = keytouch_report_fixup,46};47module_hid_driver(keytouch_driver);48 49MODULE_DESCRIPTION("HID driver for Keytouch devices not fully compliant with HID standard");50MODULE_LICENSE("GPL");51MODULE_AUTHOR("Jiri Kosina");52