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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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b3b1c68fb7
This patch adds support for handling the side buttons on the RAPOO 0x2015 wireless mouse. These buttons were previously not generating input events due to missing driver logic. The new code handles raw HID input report with Report ID 1 and maps the side buttons to KEY_BACK and KEY_FORWARD using the input subsystem. Tested on a RAPOO mouse with USB ID 24AE:2015. Signed-off-by: Nguyen Dinh Dang Duong <dangduong31205@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <asm-generic/errno-base.h>
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#include <asm-generic/int-ll64.h>
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#include <linux/bitops.h>
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#include <linux/input.h>
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#include <linux/input-event-codes.h>
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#include <linux/module.h>
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#include <linux/hid.h>
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#include <linux/usb.h>
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#include "hid-ids.h"
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#define RAPOO_BTN_BACK 0x08
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#define RAPOO_BTN_FORWARD 0x10
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static const struct hid_device_id rapoo_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_RAPOO, USB_DEVICE_ID_RAPOO_2_4G_RECEIVER) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, rapoo_devices);
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static int rapoo_probe(struct hid_device *hdev, const struct hid_device_id *id)
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{
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int ret;
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struct input_dev *input;
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ret = hid_parse(hdev);
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if (ret) {
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hid_err(hdev, "parse failed\n");
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return ret;
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}
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ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
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if (ret) {
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hid_err(hdev, "start failed\n");
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return ret;
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}
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if (hdev->bus == BUS_USB) {
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struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
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if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
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return 0;
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}
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input = devm_input_allocate_device(&hdev->dev);
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if (!input)
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return -ENOMEM;
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input->name = "Rapoo 2.4G Wireless Mouse";
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input->phys = "rapoo/input1";
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input->id.bustype = hdev->bus;
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input->id.vendor = hdev->vendor;
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input->id.product = hdev->product;
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input->id.version = hdev->version;
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__set_bit(EV_KEY, input->evbit);
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__set_bit(KEY_BACK, input->keybit);
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__set_bit(KEY_FORWARD, input->keybit);
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ret = input_register_device(input);
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if (ret)
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return ret;
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hid_set_drvdata(hdev, input);
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return ret;
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}
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static int rapoo_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size)
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{
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struct input_dev *input = hid_get_drvdata(hdev);
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if (!input)
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return 0;
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if (report->id == 1 && size >= 2) {
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u8 btn = data[1];
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input_report_key(input, KEY_BACK, btn & RAPOO_BTN_BACK);
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input_report_key(input, KEY_FORWARD, btn & RAPOO_BTN_FORWARD);
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input_sync(input);
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return 1;
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}
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return 0;
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}
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static struct hid_driver rapoo_driver = {
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.name = "hid-rapoo",
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.id_table = rapoo_devices,
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.probe = rapoo_probe,
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.raw_event = rapoo_raw_event,
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};
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module_hid_driver(rapoo_driver);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Nguyen Dinh Dang Duong <dangduong31205@gmail.com>");
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MODULE_DESCRIPTION("RAPOO 2.4G Wireless Device Driver");
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