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Message-ID: <1290801453.18750.163.camel@neuromancer>
Date: Fri, 26 Nov 2010 20:57:33 +0100
From: Stefan Achatz <erazor_de@...rs.sourceforge.net>
To: Randy Dunlap <rdunlap@...otime.net>,
Greg Kroah-Hartman <gregkh@...e.de>,
Jiri Kosina <jkosina@...e.cz>,
Stefan Achatz <erazor_de@...rs.sourceforge.net>,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-input@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH 2/5] HID: roccat: Using class for char device for sysfs
attribute creation
Adding sysfs attributes to an already created device raises no userland
notification. Now the device drivers associate the devices attributes
with a class and use this for roccat event char device creation.
Signed-off-by: Stefan Achatz <erazor_de@...rs.sourceforge.net>
---
drivers/hid/hid-roccat-kone.c | 297 ++++++++++++++++++-----------------------
drivers/hid/hid-roccat-pyra.c | 273 ++++++++++---------------------------
drivers/hid/hid-roccat.c | 17 +--
drivers/hid/hid-roccat.h | 5 +-
4 files changed, 209 insertions(+), 383 deletions(-)
diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c
index f776957..a837b8a 100644
--- a/drivers/hid/hid-roccat-kone.c
+++ b/drivers/hid/hid-roccat-kone.c
@@ -35,6 +35,9 @@
#include "hid-roccat.h"
#include "hid-roccat-kone.h"
+/* kone_class is used for creating sysfs attributes via roccat char device */
+static struct class *kone_class;
+
static void kone_set_settings_checksum(struct kone_settings *settings)
{
uint16_t checksum = 0;
@@ -262,7 +265,8 @@ static int kone_get_firmware_version(struct usb_device *usb_dev, int *result)
static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count) {
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
if (off >= sizeof(struct kone_settings))
@@ -286,7 +290,8 @@ static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj,
static ssize_t kone_sysfs_write_settings(struct file *fp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count) {
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval = 0, difference;
@@ -322,7 +327,8 @@ static ssize_t kone_sysfs_write_settings(struct file *fp, struct kobject *kobj,
static ssize_t kone_sysfs_read_profilex(struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count, int number) {
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
if (off >= sizeof(struct kone_profile))
@@ -372,7 +378,8 @@ static ssize_t kone_sysfs_read_profile5(struct file *fp, struct kobject *kobj,
static ssize_t kone_sysfs_write_profilex(struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count, int number) {
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
struct kone_profile *profile;
@@ -433,14 +440,16 @@ static ssize_t kone_sysfs_write_profile5(struct file *fp, struct kobject *kobj,
static ssize_t kone_sysfs_show_actual_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
+ struct kone_device *kone =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_profile);
}
static ssize_t kone_sysfs_show_actual_dpi(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
+ struct kone_device *kone =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_dpi);
}
@@ -448,11 +457,15 @@ static ssize_t kone_sysfs_show_actual_dpi(struct device *dev,
static ssize_t kone_sysfs_show_weight(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
- struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+ struct kone_device *kone;
+ struct usb_device *usb_dev;
int weight = 0;
int retval;
+ dev = dev->parent->parent;
+ kone = hid_get_drvdata(dev_get_drvdata(dev));
+ usb_dev = interface_to_usbdev(to_usb_interface(dev));
+
mutex_lock(&kone->kone_lock);
retval = kone_get_weight(usb_dev, &weight);
mutex_unlock(&kone->kone_lock);
@@ -465,14 +478,16 @@ static ssize_t kone_sysfs_show_weight(struct device *dev,
static ssize_t kone_sysfs_show_firmware_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
+ struct kone_device *kone =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->firmware_version);
}
static ssize_t kone_sysfs_show_tcu(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
+ struct kone_device *kone =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.tcu);
}
@@ -504,11 +519,15 @@ static int kone_tcu_command(struct usb_device *usb_dev, int number)
static ssize_t kone_sysfs_set_tcu(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
- struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
- struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+ struct kone_device *kone;
+ struct usb_device *usb_dev;
int retval;
unsigned long state;
+ dev = dev->parent->parent;
+ kone = hid_get_drvdata(dev_get_drvdata(dev));
+ usb_dev = interface_to_usbdev(to_usb_interface(dev));
+
retval = strict_strtoul(buf, 10, &state);
if (retval)
return retval;
@@ -579,18 +598,23 @@ exit_unlock:
static ssize_t kone_sysfs_show_startup_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
+ struct kone_device *kone =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.startup_profile);
}
static ssize_t kone_sysfs_set_startup_profile(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
- struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
- struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+ struct kone_device *kone;
+ struct usb_device *usb_dev;
int retval;
unsigned long new_startup_profile;
+ dev = dev->parent->parent;
+ kone = hid_get_drvdata(dev_get_drvdata(dev));
+ usb_dev = interface_to_usbdev(to_usb_interface(dev));
+
retval = strict_strtoul(buf, 10, &new_startup_profile);
if (retval)
return retval;
@@ -617,160 +641,87 @@ static ssize_t kone_sysfs_set_startup_profile(struct device *dev,
return size;
}
-/*
- * Read actual dpi settings.
- * Returns raw value for further processing. Refer to enum kone_polling_rates to
- * get real value.
- */
-static DEVICE_ATTR(actual_dpi, 0440, kone_sysfs_show_actual_dpi, NULL);
-
-static DEVICE_ATTR(actual_profile, 0440, kone_sysfs_show_actual_profile, NULL);
-
-/*
- * The mouse can be equipped with one of four supplied weights from 5 to 20
- * grams which are recognized and its value can be read out.
- * This returns the raw value reported by the mouse for easy evaluation by
- * software. Refer to enum kone_weights to get corresponding real weight.
- */
-static DEVICE_ATTR(weight, 0440, kone_sysfs_show_weight, NULL);
-
-/*
- * Prints firmware version stored in mouse as integer.
- * The raw value reported by the mouse is returned for easy evaluation, to get
- * the real version number the decimal point has to be shifted 2 positions to
- * the left. E.g. a value of 138 means 1.38.
- */
-static DEVICE_ATTR(firmware_version, 0440,
- kone_sysfs_show_firmware_version, NULL);
-
-/*
- * Prints state of Tracking Control Unit as number where 0 = off and 1 = on
- * Writing 0 deactivates tcu and writing 1 calibrates and activates the tcu
- */
-static DEVICE_ATTR(tcu, 0660, kone_sysfs_show_tcu, kone_sysfs_set_tcu);
-
-/* Prints and takes the number of the profile the mouse starts with */
-static DEVICE_ATTR(startup_profile, 0660,
- kone_sysfs_show_startup_profile,
- kone_sysfs_set_startup_profile);
-
-static struct attribute *kone_attributes[] = {
- &dev_attr_actual_dpi.attr,
- &dev_attr_actual_profile.attr,
- &dev_attr_weight.attr,
- &dev_attr_firmware_version.attr,
- &dev_attr_tcu.attr,
- &dev_attr_startup_profile.attr,
- NULL
-};
-
-static struct attribute_group kone_attribute_group = {
- .attrs = kone_attributes
-};
-
-static struct bin_attribute kone_settings_attr = {
- .attr = { .name = "settings", .mode = 0660 },
- .size = sizeof(struct kone_settings),
- .read = kone_sysfs_read_settings,
- .write = kone_sysfs_write_settings
-};
+static struct device_attribute kone_attributes[] = {
+ /*
+ * Read actual dpi settings.
+ * Returns raw value for further processing. Refer to enum
+ * kone_polling_rates to get real value.
+ */
+ __ATTR(actual_dpi, 0440, kone_sysfs_show_actual_dpi, NULL),
+ __ATTR(actual_profile, 0440, kone_sysfs_show_actual_profile, NULL),
-static struct bin_attribute kone_profile1_attr = {
- .attr = { .name = "profile1", .mode = 0660 },
- .size = sizeof(struct kone_profile),
- .read = kone_sysfs_read_profile1,
- .write = kone_sysfs_write_profile1
-};
+ /*
+ * The mouse can be equipped with one of four supplied weights from 5
+ * to 20 grams which are recognized and its value can be read out.
+ * This returns the raw value reported by the mouse for easy evaluation
+ * by software. Refer to enum kone_weights to get corresponding real
+ * weight.
+ */
+ __ATTR(weight, 0440, kone_sysfs_show_weight, NULL),
-static struct bin_attribute kone_profile2_attr = {
- .attr = { .name = "profile2", .mode = 0660 },
- .size = sizeof(struct kone_profile),
- .read = kone_sysfs_read_profile2,
- .write = kone_sysfs_write_profile2
-};
+ /*
+ * Prints firmware version stored in mouse as integer.
+ * The raw value reported by the mouse is returned for easy evaluation,
+ * to get the real version number the decimal point has to be shifted 2
+ * positions to the left. E.g. a value of 138 means 1.38.
+ */
+ __ATTR(firmware_version, 0440,
+ kone_sysfs_show_firmware_version, NULL),
-static struct bin_attribute kone_profile3_attr = {
- .attr = { .name = "profile3", .mode = 0660 },
- .size = sizeof(struct kone_profile),
- .read = kone_sysfs_read_profile3,
- .write = kone_sysfs_write_profile3
-};
+ /*
+ * Prints state of Tracking Control Unit as number where 0 = off and
+ * 1 = on. Writing 0 deactivates tcu and writing 1 calibrates and
+ * activates the tcu
+ */
+ __ATTR(tcu, 0660, kone_sysfs_show_tcu, kone_sysfs_set_tcu),
-static struct bin_attribute kone_profile4_attr = {
- .attr = { .name = "profile4", .mode = 0660 },
- .size = sizeof(struct kone_profile),
- .read = kone_sysfs_read_profile4,
- .write = kone_sysfs_write_profile4
+ /* Prints and takes the number of the profile the mouse starts with */
+ __ATTR(startup_profile, 0660,
+ kone_sysfs_show_startup_profile,
+ kone_sysfs_set_startup_profile),
+ __ATTR_NULL
};
-static struct bin_attribute kone_profile5_attr = {
- .attr = { .name = "profile5", .mode = 0660 },
- .size = sizeof(struct kone_profile),
- .read = kone_sysfs_read_profile5,
- .write = kone_sysfs_write_profile5
+static struct bin_attribute kone_bin_attributes[] = {
+ {
+ .attr = { .name = "settings", .mode = 0660 },
+ .size = sizeof(struct kone_settings),
+ .read = kone_sysfs_read_settings,
+ .write = kone_sysfs_write_settings
+ },
+ {
+ .attr = { .name = "profile1", .mode = 0660 },
+ .size = sizeof(struct kone_profile),
+ .read = kone_sysfs_read_profile1,
+ .write = kone_sysfs_write_profile1
+ },
+ {
+ .attr = { .name = "profile2", .mode = 0660 },
+ .size = sizeof(struct kone_profile),
+ .read = kone_sysfs_read_profile2,
+ .write = kone_sysfs_write_profile2
+ },
+ {
+ .attr = { .name = "profile3", .mode = 0660 },
+ .size = sizeof(struct kone_profile),
+ .read = kone_sysfs_read_profile3,
+ .write = kone_sysfs_write_profile3
+ },
+ {
+ .attr = { .name = "profile4", .mode = 0660 },
+ .size = sizeof(struct kone_profile),
+ .read = kone_sysfs_read_profile4,
+ .write = kone_sysfs_write_profile4
+ },
+ {
+ .attr = { .name = "profile5", .mode = 0660 },
+ .size = sizeof(struct kone_profile),
+ .read = kone_sysfs_read_profile5,
+ .write = kone_sysfs_write_profile5
+ },
+ __ATTR_NULL
};
-static int kone_create_sysfs_attributes(struct usb_interface *intf)
-{
- int retval;
-
- retval = sysfs_create_group(&intf->dev.kobj, &kone_attribute_group);
- if (retval)
- goto exit_1;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_settings_attr);
- if (retval)
- goto exit_2;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile1_attr);
- if (retval)
- goto exit_3;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile2_attr);
- if (retval)
- goto exit_4;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile3_attr);
- if (retval)
- goto exit_5;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile4_attr);
- if (retval)
- goto exit_6;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile5_attr);
- if (retval)
- goto exit_7;
-
- return 0;
-
-exit_7:
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile4_attr);
-exit_6:
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile3_attr);
-exit_5:
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile2_attr);
-exit_4:
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile1_attr);
-exit_3:
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_settings_attr);
-exit_2:
- sysfs_remove_group(&intf->dev.kobj, &kone_attribute_group);
-exit_1:
- return retval;
-}
-
-static void kone_remove_sysfs_attributes(struct usb_interface *intf)
-{
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile5_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile4_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile3_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile2_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile1_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &kone_settings_attr);
- sysfs_remove_group(&intf->dev.kobj, &kone_attribute_group);
-}
-
static int kone_init_kone_device_struct(struct usb_device *usb_dev,
struct kone_device *kone)
{
@@ -830,7 +781,7 @@ static int kone_init_specials(struct hid_device *hdev)
goto exit_free;
}
- retval = roccat_connect(hdev);
+ retval = roccat_connect(kone_class, hdev);
if (retval < 0) {
dev_err(&hdev->dev, "couldn't init char dev\n");
/* be tolerant about not getting chrdev */
@@ -839,11 +790,6 @@ static int kone_init_specials(struct hid_device *hdev)
kone->chrdev_minor = retval;
}
- retval = kone_create_sysfs_attributes(intf);
- if (retval) {
- dev_err(&hdev->dev, "cannot create sysfs files\n");
- goto exit_free;
- }
} else {
hid_set_drvdata(hdev, NULL);
}
@@ -854,7 +800,6 @@ exit_free:
return retval;
}
-
static void kone_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
@@ -862,7 +807,6 @@ static void kone_remove_specials(struct hid_device *hdev)
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
- kone_remove_sysfs_attributes(intf);
kone = hid_get_drvdata(hdev);
if (kone->roccat_claimed)
roccat_disconnect(kone->chrdev_minor);
@@ -1006,11 +950,24 @@ static struct hid_driver kone_driver = {
static int __init kone_init(void)
{
- return hid_register_driver(&kone_driver);
+ int retval;
+
+ /* class name has to be same as driver name */
+ kone_class = class_create(THIS_MODULE, "kone");
+ if (IS_ERR(kone_class))
+ return PTR_ERR(kone_class);
+ kone_class->dev_attrs = kone_attributes;
+ kone_class->dev_bin_attrs = kone_bin_attributes;
+
+ retval = hid_register_driver(&kone_driver);
+ if (retval)
+ class_destroy(kone_class);
+ return retval;
}
static void __exit kone_exit(void)
{
+ class_destroy(kone_class);
hid_unregister_driver(&kone_driver);
}
diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c
index 9bf2304..a50c89e 100644
--- a/drivers/hid/hid-roccat-pyra.c
+++ b/drivers/hid/hid-roccat-pyra.c
@@ -27,6 +27,9 @@
#include "hid-roccat.h"
#include "hid-roccat-pyra.h"
+/* pyra_class is used for creating sysfs attributes via roccat char device */
+static struct class *pyra_class;
+
static void profile_activated(struct pyra_device *pyra,
unsigned int new_profile)
{
@@ -223,7 +226,8 @@ static ssize_t pyra_sysfs_read_profilex_settings(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count, int number)
{
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
if (off >= sizeof(struct pyra_profile_settings))
@@ -284,7 +288,8 @@ static ssize_t pyra_sysfs_read_profilex_buttons(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count, int number)
{
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
if (off >= sizeof(struct pyra_profile_buttons))
@@ -345,7 +350,8 @@ static ssize_t pyra_sysfs_write_profile_settings(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval = 0;
@@ -381,7 +387,8 @@ static ssize_t pyra_sysfs_write_profile_buttons(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval = 0;
@@ -417,7 +424,8 @@ static ssize_t pyra_sysfs_read_settings(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
if (off >= sizeof(struct pyra_settings))
@@ -437,7 +445,8 @@ static ssize_t pyra_sysfs_write_settings(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval = 0;
@@ -469,255 +478,115 @@ static ssize_t pyra_sysfs_write_settings(struct file *fp,
static ssize_t pyra_sysfs_show_actual_cpi(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+ struct pyra_device *pyra =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", pyra->actual_cpi);
}
static ssize_t pyra_sysfs_show_actual_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+ struct pyra_device *pyra =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", pyra->actual_profile);
}
static ssize_t pyra_sysfs_show_firmware_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+ struct pyra_device *pyra =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", pyra->firmware_version);
}
static ssize_t pyra_sysfs_show_startup_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+ struct pyra_device *pyra =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", pyra->settings.startup_profile);
}
-static DEVICE_ATTR(actual_cpi, 0440, pyra_sysfs_show_actual_cpi, NULL);
-
-static DEVICE_ATTR(actual_profile, 0440, pyra_sysfs_show_actual_profile, NULL);
-
-static DEVICE_ATTR(firmware_version, 0440,
- pyra_sysfs_show_firmware_version, NULL);
-
-static DEVICE_ATTR(startup_profile, 0440,
- pyra_sysfs_show_startup_profile, NULL);
-
-static struct attribute *pyra_attributes[] = {
- &dev_attr_actual_cpi.attr,
- &dev_attr_actual_profile.attr,
- &dev_attr_firmware_version.attr,
- &dev_attr_startup_profile.attr,
- NULL
-};
-
-static struct attribute_group pyra_attribute_group = {
- .attrs = pyra_attributes
+static struct device_attribute pyra_attributes[] = {
+ __ATTR(actual_cpi, 0440, pyra_sysfs_show_actual_cpi, NULL),
+ __ATTR(actual_profile, 0440, pyra_sysfs_show_actual_profile, NULL),
+ __ATTR(firmware_version, 0440,
+ pyra_sysfs_show_firmware_version, NULL),
+ __ATTR(startup_profile, 0440,
+ pyra_sysfs_show_startup_profile, NULL),
+ __ATTR_NULL
};
-static struct bin_attribute pyra_profile_settings_attr = {
+static struct bin_attribute pyra_bin_attributes[] = {
+ {
.attr = { .name = "profile_settings", .mode = 0220 },
.size = sizeof(struct pyra_profile_settings),
.write = pyra_sysfs_write_profile_settings
-};
-
-static struct bin_attribute pyra_profile1_settings_attr = {
+ },
+ {
.attr = { .name = "profile1_settings", .mode = 0440 },
.size = sizeof(struct pyra_profile_settings),
.read = pyra_sysfs_read_profile1_settings
-};
-
-static struct bin_attribute pyra_profile2_settings_attr = {
+ },
+ {
.attr = { .name = "profile2_settings", .mode = 0440 },
.size = sizeof(struct pyra_profile_settings),
.read = pyra_sysfs_read_profile2_settings
-};
-
-static struct bin_attribute pyra_profile3_settings_attr = {
+ },
+ {
.attr = { .name = "profile3_settings", .mode = 0440 },
.size = sizeof(struct pyra_profile_settings),
.read = pyra_sysfs_read_profile3_settings
-};
-
-static struct bin_attribute pyra_profile4_settings_attr = {
+ },
+ {
.attr = { .name = "profile4_settings", .mode = 0440 },
.size = sizeof(struct pyra_profile_settings),
.read = pyra_sysfs_read_profile4_settings
-};
-
-static struct bin_attribute pyra_profile5_settings_attr = {
+ },
+ {
.attr = { .name = "profile5_settings", .mode = 0440 },
.size = sizeof(struct pyra_profile_settings),
.read = pyra_sysfs_read_profile5_settings
-};
-
-static struct bin_attribute pyra_profile_buttons_attr = {
+ },
+ {
.attr = { .name = "profile_buttons", .mode = 0220 },
.size = sizeof(struct pyra_profile_buttons),
.write = pyra_sysfs_write_profile_buttons
-};
-
-static struct bin_attribute pyra_profile1_buttons_attr = {
+ },
+ {
.attr = { .name = "profile1_buttons", .mode = 0440 },
.size = sizeof(struct pyra_profile_buttons),
.read = pyra_sysfs_read_profile1_buttons
-};
-
-static struct bin_attribute pyra_profile2_buttons_attr = {
+ },
+ {
.attr = { .name = "profile2_buttons", .mode = 0440 },
.size = sizeof(struct pyra_profile_buttons),
.read = pyra_sysfs_read_profile2_buttons
-};
-
-static struct bin_attribute pyra_profile3_buttons_attr = {
+ },
+ {
.attr = { .name = "profile3_buttons", .mode = 0440 },
.size = sizeof(struct pyra_profile_buttons),
.read = pyra_sysfs_read_profile3_buttons
-};
-
-static struct bin_attribute pyra_profile4_buttons_attr = {
+ },
+ {
.attr = { .name = "profile4_buttons", .mode = 0440 },
.size = sizeof(struct pyra_profile_buttons),
.read = pyra_sysfs_read_profile4_buttons
-};
-
-static struct bin_attribute pyra_profile5_buttons_attr = {
+ },
+ {
.attr = { .name = "profile5_buttons", .mode = 0440 },
.size = sizeof(struct pyra_profile_buttons),
.read = pyra_sysfs_read_profile5_buttons
-};
-
-static struct bin_attribute pyra_settings_attr = {
+ },
+ {
.attr = { .name = "settings", .mode = 0660 },
.size = sizeof(struct pyra_settings),
.read = pyra_sysfs_read_settings,
.write = pyra_sysfs_write_settings
+ },
+ __ATTR_NULL
};
-static int pyra_create_sysfs_attributes(struct usb_interface *intf)
-{
- int retval;
-
- retval = sysfs_create_group(&intf->dev.kobj, &pyra_attribute_group);
- if (retval)
- goto exit_1;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile_settings_attr);
- if (retval)
- goto exit_2;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile1_settings_attr);
- if (retval)
- goto exit_3;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile2_settings_attr);
- if (retval)
- goto exit_4;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile3_settings_attr);
- if (retval)
- goto exit_5;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile4_settings_attr);
- if (retval)
- goto exit_6;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile5_settings_attr);
- if (retval)
- goto exit_7;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile_buttons_attr);
- if (retval)
- goto exit_8;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile1_buttons_attr);
- if (retval)
- goto exit_9;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile2_buttons_attr);
- if (retval)
- goto exit_10;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile3_buttons_attr);
- if (retval)
- goto exit_11;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile4_buttons_attr);
- if (retval)
- goto exit_12;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_profile5_buttons_attr);
- if (retval)
- goto exit_13;
-
- retval = sysfs_create_bin_file(&intf->dev.kobj,
- &pyra_settings_attr);
- if (retval)
- goto exit_14;
-
- return 0;
-
-exit_14:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile5_buttons_attr);
-exit_13:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile4_buttons_attr);
-exit_12:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile3_buttons_attr);
-exit_11:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile2_buttons_attr);
-exit_10:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile1_buttons_attr);
-exit_9:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile_buttons_attr);
-exit_8:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile5_settings_attr);
-exit_7:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile4_settings_attr);
-exit_6:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile3_settings_attr);
-exit_5:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile2_settings_attr);
-exit_4:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile1_settings_attr);
-exit_3:
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile_settings_attr);
-exit_2:
- sysfs_remove_group(&intf->dev.kobj, &pyra_attribute_group);
-exit_1:
- return retval;
-}
-
-static void pyra_remove_sysfs_attributes(struct usb_interface *intf)
-{
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_settings_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile5_buttons_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile4_buttons_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile3_buttons_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile2_buttons_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile1_buttons_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile_buttons_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile5_settings_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile4_settings_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile3_settings_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile2_settings_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile1_settings_attr);
- sysfs_remove_bin_file(&intf->dev.kobj, &pyra_profile_settings_attr);
- sysfs_remove_group(&intf->dev.kobj, &pyra_attribute_group);
-}
-
static int pyra_init_pyra_device_struct(struct usb_device *usb_dev,
struct pyra_device *pyra)
{
@@ -782,19 +651,13 @@ static int pyra_init_specials(struct hid_device *hdev)
goto exit_free;
}
- retval = roccat_connect(hdev);
+ retval = roccat_connect(pyra_class, hdev);
if (retval < 0) {
dev_err(&hdev->dev, "couldn't init char dev\n");
} else {
pyra->chrdev_minor = retval;
pyra->roccat_claimed = 1;
}
-
- retval = pyra_create_sysfs_attributes(intf);
- if (retval) {
- dev_err(&hdev->dev, "cannot create sysfs files\n");
- goto exit_free;
- }
} else {
hid_set_drvdata(hdev, NULL);
}
@@ -812,7 +675,6 @@ static void pyra_remove_specials(struct hid_device *hdev)
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
- pyra_remove_sysfs_attributes(intf);
pyra = hid_get_drvdata(hdev);
if (pyra->roccat_claimed)
roccat_disconnect(pyra->chrdev_minor);
@@ -952,11 +814,24 @@ static struct hid_driver pyra_driver = {
static int __init pyra_init(void)
{
- return hid_register_driver(&pyra_driver);
+ int retval;
+
+ /* class name has to be same as driver name */
+ pyra_class = class_create(THIS_MODULE, "pyra");
+ if (IS_ERR(pyra_class))
+ return PTR_ERR(pyra_class);
+ pyra_class->dev_attrs = pyra_attributes;
+ pyra_class->dev_bin_attrs = pyra_bin_attributes;
+
+ retval = hid_register_driver(&pyra_driver);
+ if (retval)
+ class_destroy(pyra_class);
+ return retval;
}
static void __exit pyra_exit(void)
{
+ class_destroy(pyra_class);
hid_unregister_driver(&pyra_driver);
}
diff --git a/drivers/hid/hid-roccat.c b/drivers/hid/hid-roccat.c
index 5a6879e..7bc9c8a 100644
--- a/drivers/hid/hid-roccat.c
+++ b/drivers/hid/hid-roccat.c
@@ -65,7 +65,6 @@ struct roccat_reader {
};
static int roccat_major;
-static struct class *roccat_class;
static struct cdev roccat_cdev;
static struct roccat_device *devices[ROCCAT_MAX_DEVICES];
@@ -295,12 +294,14 @@ EXPORT_SYMBOL_GPL(roccat_report_event);
/*
* roccat_connect() - create a char device for special event output
+ * @class: the class thats used to create the device. Meant to hold device
+ * specific sysfs attributes.
* @hid: the hid device the char device should be connected to.
*
* Return value is minor device number in Range [0, ROCCAT_MAX_DEVICES] on
* success, a negative error code on failure.
*/
-int roccat_connect(struct hid_device *hid)
+int roccat_connect(struct class *klass, struct hid_device *hid)
{
unsigned int minor;
struct roccat_device *device;
@@ -326,7 +327,7 @@ int roccat_connect(struct hid_device *hid)
return -EINVAL;
}
- device->dev = device_create(roccat_class, &hid->dev,
+ device->dev = device_create(klass, &hid->dev,
MKDEV(roccat_major, minor), NULL,
"%s%s%d", "roccat", hid->driver->name, minor);
@@ -367,7 +368,7 @@ void roccat_disconnect(int minor)
device->exist = 0; /* TODO exist maybe not needed */
- device_destroy(roccat_class, MKDEV(roccat_major, minor));
+ device_destroy(device->dev->class, MKDEV(roccat_major, minor));
if (device->open) {
device->hid->ll_driver->close(device->hid);
@@ -402,13 +403,6 @@ static int __init roccat_init(void)
return retval;
}
- roccat_class = class_create(THIS_MODULE, "roccat");
- if (IS_ERR(roccat_class)) {
- retval = PTR_ERR(roccat_class);
- unregister_chrdev_region(dev_id, ROCCAT_MAX_DEVICES);
- return retval;
- }
-
cdev_init(&roccat_cdev, &roccat_ops);
cdev_add(&roccat_cdev, dev_id, ROCCAT_MAX_DEVICES);
@@ -420,7 +414,6 @@ static void __exit roccat_exit(void)
dev_t dev_id = MKDEV(roccat_major, 0);
cdev_del(&roccat_cdev);
- class_destroy(roccat_class);
unregister_chrdev_region(dev_id, ROCCAT_MAX_DEVICES);
}
diff --git a/drivers/hid/hid-roccat.h b/drivers/hid/hid-roccat.h
index 09e864e..5784281 100644
--- a/drivers/hid/hid-roccat.h
+++ b/drivers/hid/hid-roccat.h
@@ -16,11 +16,12 @@
#include <linux/types.h>
#if defined(CONFIG_HID_ROCCAT) || defined(CONFIG_HID_ROCCAT_MODULE)
-int roccat_connect(struct hid_device *hid);
+int roccat_connect(struct class *klass, struct hid_device *hid);
void roccat_disconnect(int minor);
int roccat_report_event(int minor, u8 const *data, int len);
#else
-static inline int roccat_connect(struct hid_device *hid) { return -1; }
+static inline int roccat_connect(struct class *klass,
+ struct hid_device *hid) { return -1; }
static inline void roccat_disconnect(int minor) {}
static inline int roccat_report_event(int minor, u8 const *data, int len)
{
--
1.7.2.3
--
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