Release 4.12 drivers/hid/hid-roccat-koneplus.c

Directory: drivers/hid
/*
 * Roccat Kone[+] driver for Linux
 *
 * Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net>
 */

/*
 * 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.
 */

/*
 * Roccat Kone[+] is an updated/improved version of the Kone with more memory
 * and functionality and without the non-standard behaviours the Kone had.
 * KoneXTD has same capabilities but updated sensor.
 */

#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hid-roccat.h>
#include "hid-ids.h"
#include "hid-roccat-common.h"
#include "hid-roccat-koneplus.h"


static uint profile_numbers[5] = {0, 1, 2, 3, 4};


static struct class *koneplus_class;



static void koneplus_profile_activated(struct koneplus_device *koneplus,
		uint new_profile)
{
	koneplus->actual_profile = new_profile;
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 20 100.00% 1 100.00%
Total 20 100.00% 1 100.00%



static int koneplus_send_control(struct usb_device *usb_dev, uint value,
		enum koneplus_control_requests request)
{
	struct roccat_common2_control control;

	if ((request == KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
			request == KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
			value > 4)
		return -EINVAL;

	control.command = ROCCAT_COMMON_COMMAND_CONTROL;
	control.value = value;
	control.request = request;

	return roccat_common2_send_with_status(usb_dev,
			ROCCAT_COMMON_COMMAND_CONTROL,
			&control, sizeof(struct roccat_common2_control));
}


Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 77 100.00% 4 100.00%
Total 77 100.00% 4 100.00%

/* retval is 0-4 on success, < 0 on error */


static int koneplus_get_actual_profile(struct usb_device *usb_dev)
{
	struct koneplus_actual_profile buf;
	int retval;

	retval = roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_ACTUAL_PROFILE,
			&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);

	return retval ? retval : buf.actual_profile;
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 41 100.00% 6 100.00%
Total 41 100.00% 6 100.00%



static int koneplus_set_actual_profile(struct usb_device *usb_dev,
		int new_profile)
{
	struct koneplus_actual_profile buf;

	buf.command = KONEPLUS_COMMAND_ACTUAL_PROFILE;
	buf.size = KONEPLUS_SIZE_ACTUAL_PROFILE;
	buf.actual_profile = new_profile;

	return roccat_common2_send_with_status(usb_dev,
			KONEPLUS_COMMAND_ACTUAL_PROFILE,
			&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 49 100.00% 5 100.00%
Total 49 100.00% 5 100.00%



static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
		char *buf, loff_t off, size_t count,
		size_t real_size, uint command)
{
	struct device *dev = kobj_to_dev(kobj)->parent->parent;
	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	int retval;

	if (off >= real_size)
		return 0;

	if (off != 0 || count != real_size)
		return -EINVAL;

	mutex_lock(&koneplus->koneplus_lock);
	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
	mutex_unlock(&koneplus->koneplus_lock);

	if (retval)
		return retval;

	return real_size;
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 136 99.27% 3 75.00%
Geliang Tang 1 0.73% 1 25.00%
Total 137 100.00% 4 100.00%



static ssize_t koneplus_sysfs_write(struct file *fp, struct kobject *kobj,
		void const *buf, loff_t off, size_t count,
		size_t real_size, uint command)
{
	struct device *dev = kobj_to_dev(kobj)->parent->parent;
	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	int retval;

	if (off != 0 || count != real_size)
		return -EINVAL;

	mutex_lock(&koneplus->koneplus_lock);
	retval = roccat_common2_send_with_status(usb_dev, command,
			buf, real_size);
	mutex_unlock(&koneplus->koneplus_lock);

	if (retval)
		return retval;

	return real_size;
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 128 99.22% 2 66.67%
Geliang Tang 1 0.78% 1 33.33%
Total 129 100.00% 3 100.00%


#define KONEPLUS_SYSFS_W(thingy, THINGY) \
static ssize_t koneplus_sysfs_write_ ## thingy(struct file *fp, \
                struct kobject *kobj, struct bin_attribute *attr, char *buf, \
                loff_t off, size_t count) \
{ \
        return koneplus_sysfs_write(fp, kobj, buf, off, count, \
                        KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
}


#define KONEPLUS_SYSFS_R(thingy, THINGY) \
static ssize_t koneplus_sysfs_read_ ## thingy(struct file *fp, \
                struct kobject *kobj, struct bin_attribute *attr, char *buf, \
                loff_t off, size_t count) \
{ \
        return koneplus_sysfs_read(fp, kobj, buf, off, count, \
                        KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
}


#define KONEPLUS_SYSFS_RW(thingy, THINGY) \
KONEPLUS_SYSFS_W(thingy, THINGY) \
KONEPLUS_SYSFS_R(thingy, THINGY)


#define KONEPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
KONEPLUS_SYSFS_RW(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
        .attr = { .name = #thingy, .mode = 0660 }, \
        .size = KONEPLUS_SIZE_ ## THINGY, \
        .read = koneplus_sysfs_read_ ## thingy, \
        .write = koneplus_sysfs_write_ ## thingy \
}


#define KONEPLUS_BIN_ATTRIBUTE_R(thingy, THINGY) \
KONEPLUS_SYSFS_R(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
        .attr = { .name = #thingy, .mode = 0440 }, \
        .size = KONEPLUS_SIZE_ ## THINGY, \
        .read = koneplus_sysfs_read_ ## thingy, \
}


#define KONEPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
KONEPLUS_SYSFS_W(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
        .attr = { .name = #thingy, .mode = 0220 }, \
        .size = KONEPLUS_SIZE_ ## THINGY, \
        .write = koneplus_sysfs_write_ ## thingy \
}
KONEPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
KONEPLUS_BIN_ATTRIBUTE_W(talk, TALK);
KONEPLUS_BIN_ATTRIBUTE_W(macro, MACRO);
KONEPLUS_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE);
KONEPLUS_BIN_ATTRIBUTE_RW(info, INFO);
KONEPLUS_BIN_ATTRIBUTE_RW(sensor, SENSOR);
KONEPLUS_BIN_ATTRIBUTE_RW(tcu, TCU);
KONEPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
KONEPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);



static ssize_t koneplus_sysfs_read_profilex_settings(struct file *fp,
		struct kobject *kobj, struct bin_attribute *attr, char *buf,
		loff_t off, size_t count)
{
	struct device *dev = kobj_to_dev(kobj)->parent->parent;
	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	ssize_t retval;

	retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
			KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
	if (retval)
		return retval;

	return koneplus_sysfs_read(fp, kobj, buf, off, count,
			KONEPLUS_SIZE_PROFILE_SETTINGS,
			KONEPLUS_COMMAND_PROFILE_SETTINGS);
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 105 99.06% 2 66.67%
Geliang Tang 1 0.94% 1 33.33%
Total 106 100.00% 3 100.00%



static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp,
		struct kobject *kobj, struct bin_attribute *attr, char *buf,
		loff_t off, size_t count)
{
	struct device *dev = kobj_to_dev(kobj)->parent->parent;
	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	ssize_t retval;

	retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
			KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
	if (retval)
		return retval;

	return koneplus_sysfs_read(fp, kobj, buf, off, count,
			KONEPLUS_SIZE_PROFILE_BUTTONS,
			KONEPLUS_COMMAND_PROFILE_BUTTONS);
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 105 99.06% 2 66.67%
Geliang Tang 1 0.94% 1 33.33%
Total 106 100.00% 3 100.00%


#define PROFILE_ATTR(number)						\
static struct bin_attribute bin_attr_profile##number##_settings = {     \
        .attr = { .name = "profile" #number "_settings", .mode = 0440 },        \
        .size = KONEPLUS_SIZE_PROFILE_SETTINGS,                         \
        .read = koneplus_sysfs_read_profilex_settings,                  \
        .private = &profile_numbers[number-1],                          \
};                                                                      \
static struct bin_attribute bin_attr_profile##number##_buttons = {      \
        .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
        .size = KONEPLUS_SIZE_PROFILE_BUTTONS,                          \
        .read = koneplus_sysfs_read_profilex_buttons,                   \
        .private = &profile_numbers[number-1],                          \
};
PROFILE_ATTR(1);
PROFILE_ATTR(2);
PROFILE_ATTR(3);
PROFILE_ATTR(4);
PROFILE_ATTR(5);



static ssize_t koneplus_sysfs_show_actual_profile(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct koneplus_device *koneplus =
			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
	return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->actual_profile);
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 51 100.00% 2 100.00%
Total 51 100.00% 2 100.00%



static ssize_t koneplus_sysfs_set_actual_profile(struct device *dev,
		struct device_attribute *attr, char const *buf, size_t size)
{
	struct koneplus_device *koneplus;
	struct usb_device *usb_dev;
	unsigned long profile;
	int retval;
	struct koneplus_roccat_report roccat_report;

	dev = dev->parent->parent;
	koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	usb_dev = interface_to_usbdev(to_usb_interface(dev));

	retval = kstrtoul(buf, 10, &profile);
	if (retval)
		return retval;

	if (profile > 4)
		return -EINVAL;

	mutex_lock(&koneplus->koneplus_lock);

	retval = koneplus_set_actual_profile(usb_dev, profile);
	if (retval) {
		mutex_unlock(&koneplus->koneplus_lock);
		return retval;
	}

	koneplus_profile_activated(koneplus, profile);

	roccat_report.type = KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE;
	roccat_report.data1 = profile + 1;
	roccat_report.data2 = 0;
	roccat_report.profile = profile + 1;
	roccat_report_event(koneplus->chrdev_minor,
			(uint8_t const *)&roccat_report);

	mutex_unlock(&koneplus->koneplus_lock);

	return size;
}
Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 196 99.49% 3 75.00%
Jingoo Han 1 0.51% 1 25.00%
Total 197 100.00% 4 100.00%

static DEVICE_ATTR(actual_profile, 0660,
		   koneplus_sysfs_show_actual_profile,
		   koneplus_sysfs_set_actual_profile);
static DEVICE_ATTR(startup_profile, 0660,
		   koneplus_sysfs_show_actual_profile,
		   koneplus_sysfs_set_actual_profile);



static ssize_t koneplus_sysfs_show_firmware_version(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct koneplus_device *koneplus;
	struct usb_device *usb_dev;
	struct koneplus_info info;

	dev = dev->parent->parent;
	koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	usb_dev = interface_to_usbdev(to_usb_interface(dev));

	mutex_lock(&koneplus->koneplus_lock);
	roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_INFO,
			&info, KONEPLUS_SIZE_INFO);
	mutex_unlock(&koneplus->koneplus_lock);

	return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
}
Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 104 100.00% 2 100.00%
Total 104 100.00% 2 100.00%

static DEVICE_ATTR(firmware_version, 0440,
		   koneplus_sysfs_show_firmware_version, NULL);


static struct attribute *koneplus_attrs[] = {
	&dev_attr_actual_profile.attr,
	&dev_attr_startup_profile.attr,
	&dev_attr_firmware_version.attr,
	NULL,
};


static struct bin_attribute *koneplus_bin_attributes[] = {
	&bin_attr_control,
	&bin_attr_talk,
	&bin_attr_macro,
	&bin_attr_tcu_image,
	&bin_attr_info,
	&bin_attr_sensor,
	&bin_attr_tcu,
	&bin_attr_profile_settings,
	&bin_attr_profile_buttons,
	&bin_attr_profile1_settings,
	&bin_attr_profile2_settings,
	&bin_attr_profile3_settings,
	&bin_attr_profile4_settings,
	&bin_attr_profile5_settings,
	&bin_attr_profile1_buttons,
	&bin_attr_profile2_buttons,
	&bin_attr_profile3_buttons,
	&bin_attr_profile4_buttons,
	&bin_attr_profile5_buttons,
	NULL,
};


static const struct attribute_group koneplus_group = {
	.attrs = koneplus_attrs,
	.bin_attrs = koneplus_bin_attributes,
};


static const struct attribute_group *koneplus_groups[] = {
	&koneplus_group,
	NULL,
};



static int koneplus_init_koneplus_device_struct(struct usb_device *usb_dev,
		struct koneplus_device *koneplus)
{
	int retval;

	mutex_init(&koneplus->koneplus_lock);

	retval = koneplus_get_actual_profile(usb_dev);
	if (retval < 0)
		return retval;
	koneplus_profile_activated(koneplus, retval);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 53 100.00% 2 100.00%
Total 53 100.00% 2 100.00%



static int koneplus_init_specials(struct hid_device *hdev)
{
	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	struct usb_device *usb_dev = interface_to_usbdev(intf);
	struct koneplus_device *koneplus;
	int retval;

	if (intf->cur_altsetting->desc.bInterfaceProtocol
			== USB_INTERFACE_PROTOCOL_MOUSE) {

		koneplus = kzalloc(sizeof(*koneplus), GFP_KERNEL);
		if (!koneplus) {
			hid_err(hdev, "can't alloc device descriptor\n");
			return -ENOMEM;
		}
		hid_set_drvdata(hdev, koneplus);

		retval = koneplus_init_koneplus_device_struct(usb_dev, koneplus);
		if (retval) {
			hid_err(hdev, "couldn't init struct koneplus_device\n");
			goto exit_free;
		}

		retval = roccat_connect(koneplus_class, hdev,
				sizeof(struct koneplus_roccat_report));
		if (retval < 0) {
			hid_err(hdev, "couldn't init char dev\n");
		} else {
			koneplus->chrdev_minor = retval;
			koneplus->roccat_claimed = 1;
		}
	} else {
		hid_set_drvdata(hdev, NULL);
	}

	return 0;
exit_free:
	kfree(koneplus);
	return retval;
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 188 100.00% 3 100.00%
Total 188 100.00% 3 100.00%



static void koneplus_remove_specials(struct hid_device *hdev)
{
	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	struct koneplus_device *koneplus;

	if (intf->cur_altsetting->desc.bInterfaceProtocol
			== USB_INTERFACE_PROTOCOL_MOUSE) {
		koneplus = hid_get_drvdata(hdev);
		if (koneplus->roccat_claimed)
			roccat_disconnect(koneplus->chrdev_minor);
		kfree(koneplus);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 69 100.00% 1 100.00%
Total 69 100.00% 1 100.00%



static int koneplus_probe(struct hid_device *hdev,
		const struct hid_device_id *id)
{
	int retval;

	retval = hid_parse(hdev);
	if (retval) {
		hid_err(hdev, "parse failed\n");
		goto exit;
	}

	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
	if (retval) {
		hid_err(hdev, "hw start failed\n");
		goto exit;
	}

	retval = koneplus_init_specials(hdev);
	if (retval) {
		hid_err(hdev, "couldn't install mouse\n");
		goto exit_stop;
	}

	return 0;

exit_stop:
	hid_hw_stop(hdev);
exit:
	return retval;
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 106 100.00% 2 100.00%
Total 106 100.00% 2 100.00%



static void koneplus_remove(struct hid_device *hdev)
{
	koneplus_remove_specials(hdev);
	hid_hw_stop(hdev);
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 21 100.00% 1 100.00%
Total 21 100.00% 1 100.00%



static void koneplus_keep_values_up_to_date(struct koneplus_device *koneplus,
		u8 const *data)
{
	struct koneplus_mouse_report_button const *button_report;

	switch (data[0]) {
	case KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON:
		button_report = (struct koneplus_mouse_report_button const *)data;
		switch (button_report->type) {
		case KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE:
			koneplus_profile_activated(koneplus, button_report->data1 - 1);
			break;
		}
		break;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 68 100.00% 1 100.00%
Total 68 100.00% 1 100.00%



static void koneplus_report_to_chrdev(struct koneplus_device const *koneplus,
		u8 const *data)
{
	struct koneplus_roccat_report roccat_report;
	struct koneplus_mouse_report_button const *button_report;

	if (data[0] != KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON)
		return;

	button_report = (struct koneplus_mouse_report_button const *)data;

	if ((button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
			button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER) &&
			button_report->data2 != KONEPLUS_MOUSE_REPORT_BUTTON_ACTION_PRESS)
		return;

	roccat_report.type = button_report->type;
	roccat_report.data1 = button_report->data1;
	roccat_report.data2 = button_report->data2;
	roccat_report.profile = koneplus->actual_profile + 1;
	roccat_report_event(koneplus->chrdev_minor,
			(uint8_t const *)&roccat_report);
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 119 100.00% 1 100.00%
Total 119 100.00% 1 100.00%



static int koneplus_raw_event(struct hid_device *hdev,
		struct hid_report *report, u8 *data, int size)
{
	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	struct koneplus_device *koneplus = hid_get_drvdata(hdev);

	if (intf->cur_altsetting->desc.bInterfaceProtocol
			!= USB_INTERFACE_PROTOCOL_MOUSE)
		return 0;

	if (koneplus == NULL)
		return 0;

	koneplus_keep_values_up_to_date(koneplus, data);

	if (koneplus->roccat_claimed)
		koneplus_report_to_chrdev(koneplus, data);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 94 100.00% 2 100.00%
Total 94 100.00% 2 100.00%


static const struct hid_device_id koneplus_devices[] = {
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
	{ }
};

MODULE_DEVICE_TABLE(hid, koneplus_devices);


static struct hid_driver koneplus_driver = {
		.name = "koneplus",
		.id_table = koneplus_devices,
		.probe = koneplus_probe,
		.remove = koneplus_remove,
		.raw_event = koneplus_raw_event
};



static int __init koneplus_init(void)
{
	int retval;

	/* class name has to be same as driver name */
	koneplus_class = class_create(THIS_MODULE, "koneplus");
	if (IS_ERR(koneplus_class))
		return PTR_ERR(koneplus_class);
	koneplus_class->dev_groups = koneplus_groups;

	retval = hid_register_driver(&koneplus_driver);
	if (retval)
		class_destroy(koneplus_class);
	return retval;
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 59 96.72% 1 50.00%
Greg Kroah-Hartman 2 3.28% 1 50.00%
Total 61 100.00% 2 100.00%



static void __exit koneplus_exit(void)
{
	hid_unregister_driver(&koneplus_driver);
	class_destroy(koneplus_class);
}

Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 20 100.00% 2 100.00%
Total 20 100.00% 2 100.00%


module_init(koneplus_init);

module_exit(koneplus_exit);

MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Kone[+]/XTD driver");
MODULE_LICENSE("GPL v2");
Overall Contributors
Person Tokens Prop Commits CommitProp
Stefan Achatz 2097 91.81% 18 81.82%
Greg Kroah-Hartman 182 7.97% 2 9.09%
Geliang Tang 4 0.18% 1 4.55%
Jingoo Han 1 0.04% 1 4.55%
Total 2284 100.00% 22 100.00%
Directory: drivers/hid

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
Stefan Achatz	20	100.00%	1	100.00%
Total	20	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.12 drivers/hid/hid-roccat-koneplus.c

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