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Release 4.14 drivers/hid/hid-elecom.c

Directory: drivers/hid
/*
 *  HID driver for ELECOM devices.
 *  Copyright (c) 2010 Richard Nauber <Richard.Nauber@gmail.com>
 *  Copyright (c) 2016 Yuxuan Shui <yshuiv7@gmail.com>
 *  Copyright (c) 2017 Diego Elio Pettenò <flameeyes@flameeyes.eu>
 *  Copyright (c) 2017 Alex Manoussakis <amanou@gnu.org>
 */

/*
 * 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 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { switch (hdev->product) { case USB_DEVICE_ID_ELECOM_BM084: /* The BM084 Bluetooth mouse includes a non-existing horizontal * wheel in the HID descriptor. */ if (*rsize >= 48 && rdesc[46] == 0x05 && rdesc[47] == 0x0c) { hid_info(hdev, "Fixing up Elecom BM084 report descriptor\n"); rdesc[47] = 0x00; } break; case USB_DEVICE_ID_ELECOM_DEFT_WIRED: case USB_DEVICE_ID_ELECOM_DEFT_WIRELESS: case USB_DEVICE_ID_ELECOM_HUGE_WIRED: case USB_DEVICE_ID_ELECOM_HUGE_WIRELESS: /* The DEFT/HUGE trackball has eight buttons, but its descriptor * only reports five, disabling the three Fn buttons on the top * of the mouse. * * Apply the following diff to the descriptor: * * Collection (Physical), Collection (Physical), * Report ID (1), Report ID (1), * Report Count (5), -> Report Count (8), * Report Size (1), Report Size (1), * Usage Page (Button), Usage Page (Button), * Usage Minimum (01h), Usage Minimum (01h), * Usage Maximum (05h), -> Usage Maximum (08h), * Logical Minimum (0), Logical Minimum (0), * Logical Maximum (1), Logical Maximum (1), * Input (Variable), Input (Variable), * Report Count (1), -> Report Count (0), * Report Size (3), Report Size (3), * Input (Constant), Input (Constant), * Report Size (16), Report Size (16), * Report Count (2), Report Count (2), * Usage Page (Desktop), Usage Page (Desktop), * Usage (X), Usage (X), * Usage (Y), Usage (Y), * Logical Minimum (-32768), Logical Minimum (-32768), * Logical Maximum (32767), Logical Maximum (32767), * Input (Variable, Relative), Input (Variable, Relative), * End Collection, End Collection, */ if (*rsize == 213 && rdesc[13] == 5 && rdesc[21] == 5) { hid_info(hdev, "Fixing up Elecom DEFT/HUGE Fn buttons\n"); rdesc[13] = 8; /* Button/Variable Report Count */ rdesc[21] = 8; /* Button/Variable Usage Maximum */ rdesc[29] = 0; /* Button/Constant Report Count */ } break; } return rdesc; }

Contributors

PersonTokensPropCommitsCommitProp
Diego Elio 'Flameeyes' Pettenò7351.41%120.00%
Richard Nauber5236.62%120.00%
Alex Manoussakis85.63%120.00%
Nikolai Kondrashov74.93%120.00%
Joe Perches21.41%120.00%
Total142100.00%5100.00%

static const struct hid_device_id elecom_devices[] = { { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRED) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRELESS) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRED) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRELESS) }, { } }; MODULE_DEVICE_TABLE(hid, elecom_devices); static struct hid_driver elecom_driver = { .name = "elecom", .id_table = elecom_devices, .report_fixup = elecom_report_fixup }; module_hid_driver(elecom_driver); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
Richard Nauber12248.61%116.67%
Diego Elio 'Flameeyes' Pettenò9136.25%116.67%
Alex Manoussakis2710.76%116.67%
Nikolai Kondrashov72.79%116.67%
H Hartley Sweeten20.80%116.67%
Joe Perches20.80%116.67%
Total251100.00%6100.00%
Directory: drivers/hid
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