Initial file dump from open source releaseHEADmaster

1 files changed, 110 insertions, 0 deletions

diff --git a/drivers/sensor/sensors_core.c b/drivers/sensor/sensors_core.c
new file mode 100644
index 00000000..5a192f95
--- /dev/null
+++ b/drivers/sensor/sensors_core.c
@@ -0,0 +1,110 @@
+/* /driver/sensors/core/sensors_core.c
+ * Copyright (C) 2011 Samsung Electronics. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/err.h>
+
+
+struct class *sensors_class;
+EXPORT_SYMBOL_GPL(sensors_class);
+
+
+/**
+ * Create sysfs interface
+ */
+static void set_sensor_attr(struct device *dev,
+	struct device_attribute *attributes[])
+{
+	int i;
+
+	for (i = 0 ; attributes[i] != NULL ; i++) {
+		if ((device_create_file(dev, attributes[i])) < 0)
+			pr_err("Create_dev_file fail(attributes[%d] )\n", i);
+	}
+}
+
+int sensors_register(struct device *dev, void * drvdata,
+	struct device_attribute *attributes[], char *name)
+{
+	int ret = 0;
+
+	if (!sensors_class) {
+		sensors_class = class_create(THIS_MODULE, "sensors");
+		if (IS_ERR(sensors_class))
+			return PTR_ERR(sensors_class);
+	}
+
+
+	dev = device_create(sensors_class, NULL, 0, drvdata, "%s", name);
+
+	if (IS_ERR(dev)) {
+		ret = PTR_ERR(dev);
+		pr_err("[SENSORS CORE] device_create failed! [%d]\n", ret);
+		return ret;
+	}
+
+	set_sensor_attr(dev, attributes);
+
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(sensors_register);
+
+void sensors_unregister(struct device *dev,struct device_attribute *attributes[])
+{
+	int i;
+ 
+    if (sensors_class != NULL) {
+    	for (i = 0 ; attributes[i] != NULL ; i++)
+    			device_remove_file(dev, attributes[i]);
+	}
+}
+EXPORT_SYMBOL_GPL(sensors_unregister);
+
+static int __init sensors_class_init(void)
+{
+	pr_debug("[SENSORS CORE] sensors_class_init\n");
+	sensors_class = class_create(THIS_MODULE, "sensors");
+
+	if (IS_ERR(sensors_class))
+		return PTR_ERR(sensors_class);
+
+	sensors_class->dev_uevent = NULL;
+
+	return 0;
+}
+
+static void __exit sensors_class_exit(void)
+{
+	class_destroy(sensors_class);
+}
+
+
+/* exported for the APM Power driver, APM emulation */
+
+subsys_initcall(sensors_class_init);
+module_exit(sensors_class_exit);
+
+MODULE_DESCRIPTION("Universal sensors core class");
+MODULE_AUTHOR("Ryunkyun Park <ryun.park@samsung.com>");
+MODULE_LICENSE("GPL");
+