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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a0933a456f
In addition to DEFT, Elecom introduced a larger trackball called HUGE, in both wired (M-HT1URBK) and wireless (M-HT1DRBK) versions. It has the same buttons and behavior as the DEFT. This patch adds the two relevant USB IDs to enable operation of the three Fn buttons on the top of the device. Cc: Diego Elio Petteno <flameeyes@flameeyes.eu> Signed-off-by: Alex Manoussakis <amanou@gnu.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
96 lines
3.8 KiB
C
96 lines
3.8 KiB
C
/*
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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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