hid-semitek.c 1.0 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * HID driver for Semitek keyboards
  4. *
  5. * Copyright (c) 2021 Benjamin Moody
  6. */
  7. #include <linux/device.h>
  8. #include <linux/hid.h>
  9. #include <linux/module.h>
  10. #include "hid-ids.h"
  11. static __u8 *semitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  12. unsigned int *rsize)
  13. {
  14. /* In the report descriptor for interface 2, fix the incorrect
  15. description of report ID 0x04 (the report contains a
  16. bitmask, not an array of keycodes.) */
  17. if (*rsize == 0xcb && rdesc[0x83] == 0x81 && rdesc[0x84] == 0x00) {
  18. hid_info(hdev, "fixing up Semitek report descriptor\n");
  19. rdesc[0x84] = 0x02;
  20. }
  21. return rdesc;
  22. }
  23. static const struct hid_device_id semitek_devices[] = {
  24. { HID_USB_DEVICE(USB_VENDOR_ID_SEMITEK, USB_DEVICE_ID_SEMITEK_KEYBOARD) },
  25. { }
  26. };
  27. MODULE_DEVICE_TABLE(hid, semitek_devices);
  28. static struct hid_driver semitek_driver = {
  29. .name = "semitek",
  30. .id_table = semitek_devices,
  31. .report_fixup = semitek_report_fixup,
  32. };
  33. module_hid_driver(semitek_driver);
  34. MODULE_LICENSE("GPL");