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15#include <linux/hid.h>
16#include <linux/module.h>
17#include <linux/usb.h>
18
19#include "hid-ids.h"
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32
33static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
34 unsigned int *rsize)
35{
36 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
37
38 if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
39
40
41 switch (hdev->product) {
42 case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067:
43 if (*rsize >= 122 && rdesc[115] == 0xff && rdesc[116] == 0x7f
44 && rdesc[120] == 0xff && rdesc[121] == 0x7f) {
45 hid_info(hdev, "Fixing up report descriptor\n");
46 rdesc[116] = rdesc[121] = 0x2f;
47 }
48 break;
49 case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A:
50 case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081:
51 if (*rsize >= 113 && rdesc[106] == 0xff && rdesc[107] == 0x7f
52 && rdesc[111] == 0xff && rdesc[112] == 0x7f) {
53 hid_info(hdev, "Fixing up report descriptor\n");
54 rdesc[107] = rdesc[112] = 0x2f;
55 }
56 break;
57 }
58
59 }
60 return rdesc;
61}
62
63static const struct hid_device_id holtek_mouse_devices[] = {
64 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
65 USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
66 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
67 USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
68 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
69 USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
70 { }
71};
72MODULE_DEVICE_TABLE(hid, holtek_mouse_devices);
73
74static struct hid_driver holtek_mouse_driver = {
75 .name = "holtek_mouse",
76 .id_table = holtek_mouse_devices,
77 .report_fixup = holtek_mouse_report_fixup,
78};
79
80module_hid_driver(holtek_mouse_driver);
81MODULE_LICENSE("GPL");
82