* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
- * You need an userspace library to cooperate with this driver. It (and other
+ * You need a userspace library to cooperate with this driver. It (and other
* info) may be obtained here:
* http://www.fi.muni.cz/~xslaby/phantom.html
* or alternatively, you might use OpenHaptics provided by Sensable.
#include <linux/poll.h>
#include <linux/interrupt.h>
#include <linux/cdev.h>
+#include <linux/slab.h>
#include <linux/phantom.h>
+#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <asm/atomic.h>
return mask;
}
-static struct file_operations phantom_file_ops = {
+static const struct file_operations phantom_file_ops = {
.open = phantom_open,
.release = phantom_release,
.unlocked_ioctl = phantom_ioctl,
.resume = phantom_resume
};
-static ssize_t phantom_show_version(struct class *cls, char *buf)
-{
- return sprintf(buf, PHANTOM_VERSION "\n");
-}
-
-static CLASS_ATTR(version, 0444, phantom_show_version, NULL);
+static CLASS_ATTR_STRING(version, 0444, PHANTOM_VERSION);
static int __init phantom_init(void)
{
printk(KERN_ERR "phantom: can't register phantom class\n");
goto err;
}
- retval = class_create_file(phantom_class, &class_attr_version);
+ retval = class_create_file(phantom_class, &class_attr_version.attr);
if (retval) {
printk(KERN_ERR "phantom: can't create sysfs version file\n");
goto err_class;
err_unchr:
unregister_chrdev_region(dev, PHANTOM_MAX_MINORS);
err_attr:
- class_remove_file(phantom_class, &class_attr_version);
+ class_remove_file(phantom_class, &class_attr_version.attr);
err_class:
class_destroy(phantom_class);
err:
unregister_chrdev_region(MKDEV(phantom_major, 0), PHANTOM_MAX_MINORS);
- class_remove_file(phantom_class, &class_attr_version);
+ class_remove_file(phantom_class, &class_attr_version.attr);
class_destroy(phantom_class);
pr_debug("phantom: module successfully removed\n");