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95 lines
3.8 KiB
95 lines
3.8 KiB
/* |
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* HID driver for ELECOM devices. |
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* Copyright (c) 2010 Richard Nauber <Richard.Nauber@gmail.com> |
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* Copyright (c) 2016 Yuxuan Shui <yshuiv7@gmail.com> |
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* Copyright (c) 2017 Diego Elio Pettenò <flameeyes@flameeyes.eu> |
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* Copyright (c) 2017 Alex Manoussakis <amanou@gnu.org> |
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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 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
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unsigned int *rsize) |
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{ |
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switch (hdev->product) { |
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case USB_DEVICE_ID_ELECOM_BM084: |
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/* The BM084 Bluetooth mouse includes a non-existing horizontal |
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* wheel in the HID descriptor. */ |
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if (*rsize >= 48 && rdesc[46] == 0x05 && rdesc[47] == 0x0c) { |
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hid_info(hdev, "Fixing up Elecom BM084 report descriptor\n"); |
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rdesc[47] = 0x00; |
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} |
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break; |
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case USB_DEVICE_ID_ELECOM_DEFT_WIRED: |
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case USB_DEVICE_ID_ELECOM_DEFT_WIRELESS: |
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case USB_DEVICE_ID_ELECOM_HUGE_WIRED: |
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case USB_DEVICE_ID_ELECOM_HUGE_WIRELESS: |
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/* The DEFT/HUGE trackball has eight buttons, but its descriptor |
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* only reports five, disabling the three Fn buttons on the top |
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* of the mouse. |
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* |
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* Apply the following diff to the descriptor: |
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* |
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* Collection (Physical), Collection (Physical), |
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* Report ID (1), Report ID (1), |
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* Report Count (5), -> Report Count (8), |
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* Report Size (1), Report Size (1), |
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* Usage Page (Button), Usage Page (Button), |
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* Usage Minimum (01h), Usage Minimum (01h), |
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* Usage Maximum (05h), -> Usage Maximum (08h), |
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* Logical Minimum (0), Logical Minimum (0), |
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* Logical Maximum (1), Logical Maximum (1), |
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* Input (Variable), Input (Variable), |
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* Report Count (1), -> Report Count (0), |
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* Report Size (3), Report Size (3), |
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* Input (Constant), Input (Constant), |
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* Report Size (16), Report Size (16), |
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* Report Count (2), Report Count (2), |
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* Usage Page (Desktop), Usage Page (Desktop), |
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* Usage (X), Usage (X), |
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* Usage (Y), Usage (Y), |
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* Logical Minimum (-32768), Logical Minimum (-32768), |
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* Logical Maximum (32767), Logical Maximum (32767), |
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* Input (Variable, Relative), Input (Variable, Relative), |
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* End Collection, End Collection, |
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*/ |
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if (*rsize == 213 && rdesc[13] == 5 && rdesc[21] == 5) { |
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hid_info(hdev, "Fixing up Elecom DEFT/HUGE Fn buttons\n"); |
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rdesc[13] = 8; /* Button/Variable Report Count */ |
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rdesc[21] = 8; /* Button/Variable Usage Maximum */ |
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rdesc[29] = 0; /* Button/Constant Report Count */ |
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} |
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break; |
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} |
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return rdesc; |
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} |
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static const struct hid_device_id elecom_devices[] = { |
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) }, |
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{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRED) }, |
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{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRELESS) }, |
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{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRED) }, |
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{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRELESS) }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(hid, elecom_devices); |
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static struct hid_driver elecom_driver = { |
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.name = "elecom", |
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.id_table = elecom_devices, |
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.report_fixup = elecom_report_fixup |
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}; |
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module_hid_driver(elecom_driver); |
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MODULE_LICENSE("GPL");
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