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diff --git a/src/devices/ahci.h b/src/devices/ahci.h
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+/*
+ * Copyright 2010, Intel Corporation
+ *
+ * This file is part of PowerTOP
+ *
+ * This program file 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; version 2 of the License.
+ *
+ * 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 in a file named COPYING; if not, write to the
+ * Free Software Foundation, Inc,
+ * 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ * or just google for it.
+ *
+ * Authors:
+ *	Arjan van de Ven <arjan@linux.intel.com>
+ */
+#ifndef _INCLUDE_GUARD_AHCI_H
+#define _INCLUDE_GUARD_AHCI_H
+
+
+#include <string>
+#include <limits.h>
+#include "device.h"
+#include "../parameters/parameters.h"
+#include <stdint.h>
+
+class ahci: public device {
+	uint64_t start_active, end_active;
+	uint64_t start_partial, end_partial;
+	uint64_t start_slumber, end_slumber;
+	uint64_t start_devslp, end_devslp;
+	char sysfs_path[PATH_MAX];
+	char name[4096];
+	int partial_rindex;
+	int active_rindex;
+	int slumber_rindex;
+	int devslp_rindex;
+	int partial_index;
+	int active_index;
+	char humanname[4096];
+public:
+
+	ahci(char *_name, char *path);
+
+	virtual void start_measurement(void);
+	virtual void end_measurement(void);
+
+	virtual double	utilization(void); /* percentage */
+
+	virtual const char * class_name(void) { return "ahci";};
+
+	virtual const char * device_name(void);
+	virtual const char * human_name(void) { return humanname;};
+	virtual double power_usage(struct result_bundle *result, struct parameter_bundle *bundle);
+	virtual int power_valid(void) { return utilization_power_valid(partial_rindex) + utilization_power_valid(active_rindex);};
+	virtual int grouping_prio(void) { return 1; };
+	virtual void report_device_stats(string *ahci_data, int idx);
+};
+
+extern void create_all_ahcis(void);
+extern void ahci_create_device_stats_table(void);
+
+
+#endif