dc9b8e85ed
The redragon asura keyboard registers two input devices. The initial commit85455dd906("HID: redragon: Fix modifier keys for Redragon Asura Keyboard") considered this an error and prevented one of the devices from registering. However, once this is done the num lock and caps lock leds no longer toggle on and off, although the key functionality is not affected. This commit removes the code that prevents the input device registration and restores the num lock and caps lock LEDs. Fixes:85455dd906("HID: redragon: Fix modifier keys for Redragon Asura Keyboard") Signed-off-by: Robert Munteanu <rombert@apache.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/*
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* HID driver for Redragon keyboards
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*
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* Copyright (c) 2017 Robert Munteanu
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* SPDX-License-Identifier: GPL-2.0+
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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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/*
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* The Redragon Asura keyboard sends an incorrect HID descriptor.
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* At byte 100 it contains
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*
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* 0x81, 0x00
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*
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* which is Input (Data, Arr, Abs), but it should be
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*
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* 0x81, 0x02
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*
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* which is Input (Data, Var, Abs), which is consistent with the way
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* key codes are generated.
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*/
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static __u8 *redragon_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 >= 102 && rdesc[100] == 0x81 && rdesc[101] == 0x00) {
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dev_info(&hdev->dev, "Fixing Redragon ASURA report descriptor.\n");
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rdesc[101] = 0x02;
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}
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return rdesc;
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}
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static const struct hid_device_id redragon_devices[] = {
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{HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_REDRAGON_ASURA)},
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{}
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};
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MODULE_DEVICE_TABLE(hid, redragon_devices);
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static struct hid_driver redragon_driver = {
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.name = "redragon",
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.id_table = redragon_devices,
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.report_fixup = redragon_report_fixup
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};
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module_hid_driver(redragon_driver);
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MODULE_LICENSE("GPL");
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