Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Roccat Arvo driver for Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  * Roccat Arvo is a gamer keyboard with 5 macro keys that can be configured in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * 5 profiles.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/hid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/hid-roccat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include "hid-ids.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include "hid-roccat-common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include "hid-roccat-arvo.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) static struct class *arvo_class;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) static ssize_t arvo_sysfs_show_mode_key(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 		struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	struct arvo_device *arvo =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	struct usb_device *usb_dev =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 			interface_to_usbdev(to_usb_interface(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	struct arvo_mode_key temp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	mutex_lock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	retval = roccat_common2_receive(usb_dev, ARVO_COMMAND_MODE_KEY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 			&temp_buf, sizeof(struct arvo_mode_key));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	mutex_unlock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	return snprintf(buf, PAGE_SIZE, "%d\n", temp_buf.state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) static ssize_t arvo_sysfs_set_mode_key(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		struct device_attribute *attr, char const *buf, size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	struct arvo_device *arvo =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	struct usb_device *usb_dev =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 			interface_to_usbdev(to_usb_interface(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	struct arvo_mode_key temp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	unsigned long state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	retval = kstrtoul(buf, 10, &state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	temp_buf.command = ARVO_COMMAND_MODE_KEY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	temp_buf.state = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	mutex_lock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	retval = roccat_common2_send(usb_dev, ARVO_COMMAND_MODE_KEY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 			&temp_buf, sizeof(struct arvo_mode_key));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	mutex_unlock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	return size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) static DEVICE_ATTR(mode_key, 0660,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		   arvo_sysfs_show_mode_key, arvo_sysfs_set_mode_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) static ssize_t arvo_sysfs_show_key_mask(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	struct arvo_device *arvo =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	struct usb_device *usb_dev =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 			interface_to_usbdev(to_usb_interface(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	struct arvo_key_mask temp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	mutex_lock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	retval = roccat_common2_receive(usb_dev, ARVO_COMMAND_KEY_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 			&temp_buf, sizeof(struct arvo_key_mask));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	mutex_unlock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	return snprintf(buf, PAGE_SIZE, "%d\n", temp_buf.key_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) static ssize_t arvo_sysfs_set_key_mask(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		struct device_attribute *attr, char const *buf, size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	struct arvo_device *arvo =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	struct usb_device *usb_dev =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 			interface_to_usbdev(to_usb_interface(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	struct arvo_key_mask temp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	unsigned long key_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	retval = kstrtoul(buf, 10, &key_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	temp_buf.command = ARVO_COMMAND_KEY_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	temp_buf.key_mask = key_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	mutex_lock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	retval = roccat_common2_send(usb_dev, ARVO_COMMAND_KEY_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 			&temp_buf, sizeof(struct arvo_key_mask));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	mutex_unlock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	return size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static DEVICE_ATTR(key_mask, 0660,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 		   arvo_sysfs_show_key_mask, arvo_sysfs_set_key_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) /* retval is 1-5 on success, < 0 on error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static int arvo_get_actual_profile(struct usb_device *usb_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	struct arvo_actual_profile temp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	retval = roccat_common2_receive(usb_dev, ARVO_COMMAND_ACTUAL_PROFILE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 			&temp_buf, sizeof(struct arvo_actual_profile));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	return temp_buf.actual_profile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static ssize_t arvo_sysfs_show_actual_profile(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	struct arvo_device *arvo =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	return snprintf(buf, PAGE_SIZE, "%d\n", arvo->actual_profile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static ssize_t arvo_sysfs_set_actual_profile(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		struct device_attribute *attr, char const *buf, size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	struct arvo_device *arvo =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	struct usb_device *usb_dev =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 			interface_to_usbdev(to_usb_interface(dev->parent->parent));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	struct arvo_actual_profile temp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	unsigned long profile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	retval = kstrtoul(buf, 10, &profile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	if (profile < 1 || profile > 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	temp_buf.command = ARVO_COMMAND_ACTUAL_PROFILE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	temp_buf.actual_profile = profile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	mutex_lock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	retval = roccat_common2_send(usb_dev, ARVO_COMMAND_ACTUAL_PROFILE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 			&temp_buf, sizeof(struct arvo_actual_profile));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	if (!retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		arvo->actual_profile = profile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		retval = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	mutex_unlock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) static DEVICE_ATTR(actual_profile, 0660,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		   arvo_sysfs_show_actual_profile,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		   arvo_sysfs_set_actual_profile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static ssize_t arvo_sysfs_write(struct file *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		struct kobject *kobj, void const *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		loff_t off, size_t count, size_t real_size, uint command)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	struct device *dev = kobj_to_dev(kobj)->parent->parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	struct arvo_device *arvo = hid_get_drvdata(dev_get_drvdata(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	if (off != 0 || count != real_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	mutex_lock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	retval = roccat_common2_send(usb_dev, command, buf, real_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	mutex_unlock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	return (retval ? retval : real_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) static ssize_t arvo_sysfs_read(struct file *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		struct kobject *kobj, void *buf, loff_t off,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		size_t count, size_t real_size, uint command)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	struct device *dev = kobj_to_dev(kobj)->parent->parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	struct arvo_device *arvo = hid_get_drvdata(dev_get_drvdata(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	if (off >= real_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	if (off != 0 || count != real_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	mutex_lock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	mutex_unlock(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	return (retval ? retval : real_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static ssize_t arvo_sysfs_write_button(struct file *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		loff_t off, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	return arvo_sysfs_write(fp, kobj, buf, off, count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 			sizeof(struct arvo_button), ARVO_COMMAND_BUTTON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static BIN_ATTR(button, 0220, NULL, arvo_sysfs_write_button,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		sizeof(struct arvo_button));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) static ssize_t arvo_sysfs_read_info(struct file *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		loff_t off, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	return arvo_sysfs_read(fp, kobj, buf, off, count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 			sizeof(struct arvo_info), ARVO_COMMAND_INFO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) static BIN_ATTR(info, 0440, arvo_sysfs_read_info, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		sizeof(struct arvo_info));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) static struct attribute *arvo_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	&dev_attr_mode_key.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	&dev_attr_key_mask.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	&dev_attr_actual_profile.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) static struct bin_attribute *arvo_bin_attributes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	&bin_attr_button,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	&bin_attr_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) static const struct attribute_group arvo_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	.attrs = arvo_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	.bin_attrs = arvo_bin_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) static const struct attribute_group *arvo_groups[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	&arvo_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static int arvo_init_arvo_device_struct(struct usb_device *usb_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		struct arvo_device *arvo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	mutex_init(&arvo->arvo_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	retval = arvo_get_actual_profile(usb_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	if (retval < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	arvo->actual_profile = retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) static int arvo_init_specials(struct hid_device *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	struct usb_device *usb_dev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	struct arvo_device *arvo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	if (intf->cur_altsetting->desc.bInterfaceProtocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 			== USB_INTERFACE_PROTOCOL_KEYBOARD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 		hid_set_drvdata(hdev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	arvo = kzalloc(sizeof(*arvo), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	if (!arvo) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		hid_err(hdev, "can't alloc device descriptor\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	hid_set_drvdata(hdev, arvo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	retval = arvo_init_arvo_device_struct(usb_dev, arvo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 		hid_err(hdev, "couldn't init struct arvo_device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 		goto exit_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	retval = roccat_connect(arvo_class, hdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 			sizeof(struct arvo_roccat_report));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	if (retval < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 		hid_err(hdev, "couldn't init char dev\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 		arvo->chrdev_minor = retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 		arvo->roccat_claimed = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) exit_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	kfree(arvo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) static void arvo_remove_specials(struct hid_device *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	struct arvo_device *arvo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	if (intf->cur_altsetting->desc.bInterfaceProtocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 			== USB_INTERFACE_PROTOCOL_KEYBOARD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	arvo = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	if (arvo->roccat_claimed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 		roccat_disconnect(arvo->chrdev_minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	kfree(arvo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) static int arvo_probe(struct hid_device *hdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		const struct hid_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	if (!hid_is_usb(hdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	retval = hid_parse(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		hid_err(hdev, "parse failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		hid_err(hdev, "hw start failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 	retval = arvo_init_specials(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 		hid_err(hdev, "couldn't install keyboard\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 		goto exit_stop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) exit_stop:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 	hid_hw_stop(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) static void arvo_remove(struct hid_device *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	arvo_remove_specials(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 	hid_hw_stop(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) static void arvo_report_to_chrdev(struct arvo_device const *arvo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 		u8 const *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	struct arvo_special_report const *special_report;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 	struct arvo_roccat_report roccat_report;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 	special_report = (struct arvo_special_report const *)data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 	roccat_report.profile = arvo->actual_profile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	roccat_report.button = special_report->event &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 			ARVO_SPECIAL_REPORT_EVENT_MASK_BUTTON;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	if ((special_report->event & ARVO_SPECIAL_REPORT_EVENT_MASK_ACTION) ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 			ARVO_SPECIAL_REPORT_EVENT_ACTION_PRESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 		roccat_report.action = ARVO_ROCCAT_REPORT_ACTION_PRESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 		roccat_report.action = ARVO_ROCCAT_REPORT_ACTION_RELEASE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 	roccat_report_event(arvo->chrdev_minor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 			(uint8_t const *)&roccat_report);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) static int arvo_raw_event(struct hid_device *hdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 		struct hid_report *report, u8 *data, int size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 	struct arvo_device *arvo = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 	if (size != 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 	if (arvo && arvo->roccat_claimed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 		arvo_report_to_chrdev(arvo, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) static const struct hid_device_id arvo_devices[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) MODULE_DEVICE_TABLE(hid, arvo_devices);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) static struct hid_driver arvo_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 	.name = "arvo",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 	.id_table = arvo_devices,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 	.probe = arvo_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 	.remove = arvo_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 	.raw_event = arvo_raw_event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) static int __init arvo_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 	arvo_class = class_create(THIS_MODULE, "arvo");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 	if (IS_ERR(arvo_class))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 		return PTR_ERR(arvo_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 	arvo_class->dev_groups = arvo_groups;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 	retval = hid_register_driver(&arvo_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 		class_destroy(arvo_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static void __exit arvo_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 	hid_unregister_driver(&arvo_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 	class_destroy(arvo_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) module_init(arvo_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) module_exit(arvo_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) MODULE_AUTHOR("Stefan Achatz");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) MODULE_DESCRIPTION("USB Roccat Arvo driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) MODULE_LICENSE("GPL v2");