58 lines
1.8 KiB
C
Executable file
58 lines
1.8 KiB
C
Executable file
/*
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* HID driver for various devices which are apparently based on the same chipset
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* from certain vendor which produces chips that contain wrong LogicalMaximum
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* value in their HID report descriptor. Currently supported devices are:
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*
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* Ortek PKB-1700
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* Ortek WKB-2000
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* iHome IMAC-A210S
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* Skycable wireless presenter
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*
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* Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
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* Copyright (c) 2011 Jiri Kosina
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*/
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <linux/device.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include "hid-ids.h"
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static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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unsigned int *rsize)
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{
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if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
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hid_info(hdev, "Fixing up logical maximum in report descriptor (Ortek)\n");
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rdesc[55] = 0x92;
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} else if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
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hid_info(hdev, "Fixing up logical maximum in report descriptor (Skycable)\n");
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rdesc[53] = 0x65;
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}
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return rdesc;
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}
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static const struct hid_device_id ortek_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_IHOME_IMAC_A210S) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, ortek_devices);
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static struct hid_driver ortek_driver = {
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.name = "ortek",
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.id_table = ortek_devices,
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.report_fixup = ortek_report_fixup
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};
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module_hid_driver(ortek_driver);
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MODULE_LICENSE("GPL");
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