/* * HID driver for various devices which are apparently based on the same chipset * from certain vendor which produces chips that contain wrong LogicalMaximum * value in their HID report descriptor. Currently supported devices are: * * Ortek PKB-1700 * Ortek WKB-2000 * Skycable wireless presenter * * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com> * Copyright (c) 2011 Jiri Kosina */ /* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. */ #include <linux/device.h> #include <linux/hid.h> #include <linux/module.h> #include "hid-ids.h" static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) { hid_info(hdev, "Fixing up logical minimum in report descriptor (Ortek)\n"); rdesc[55] = 0x92; } else if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) { hid_info(hdev, "Fixing up logical minimum in report descriptor (Skycable)\n"); rdesc[53] = 0x65; } return rdesc; } static const struct hid_device_id ortek_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) }, { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) }, { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) }, { } }; MODULE_DEVICE_TABLE(hid, ortek_devices); static struct hid_driver ortek_driver = { .name = "ortek", .id_table = ortek_devices, .report_fixup = ortek_report_fixup }; module_hid_driver(ortek_driver); MODULE_LICENSE("GPL");