Merge kroah.com:/home/greg/linux/BK/bleed-2.5

into kroah.com:/home/greg/linux/BK/i2c-2.5

drivers/i2c/chips/Kconfig

@@ -66,7 +66,8 @@ config SENSORS_W83781D
 
 config I2C_SENSOR
 	tristate
-	depends on SENSORS_ADM1021 || SENSORS_LM75 || SENSORS_VIA686A || SENSORS_W83781D
-	default m
+	default y if SENSORS_ADM1021=y || SENSORS_LM75=y || SENSORS_VIA686A=y || SENSORS_W83781D=y
+	default m if SENSORS_ADM1021=m || SENSORS_LM75=m || SENSORS_VIA686A=m || SENSORS_W83781D=m
+	default n
 
 endmenu

drivers/i2c/chips/via686a.c

@@ -87,9 +87,9 @@ static const u8 regover[] = { 0x39, 0x3d, 0x1d };
 static const u8 reghyst[] = { 0x3a, 0x3e, 0x1e };
 
 /* temps numbered 1-3 */
-#define VIA686A_REG_TEMP(nr)		(regtemp[(nr) - 1])
-#define VIA686A_REG_TEMP_OVER(nr)	(regover[(nr) - 1])
-#define VIA686A_REG_TEMP_HYST(nr)	(reghyst[(nr) - 1])
+#define VIA686A_REG_TEMP(nr)		(regtemp[nr])
+#define VIA686A_REG_TEMP_OVER(nr)	(regover[nr])
+#define VIA686A_REG_TEMP_HYST(nr)	(reghyst[nr])
 #define VIA686A_REG_TEMP_LOW1	0x4b	// bits 7-6
 #define VIA686A_REG_TEMP_LOW23	0x49	// 2 = bits 5-4, 3 = bits 7-6
 
@@ -369,6 +369,8 @@ static inline long TEMP_FROM_REG10(u16 val)
    dynamically allocated, at the same time when a new via686a client is
    allocated. */
 struct via686a_data {
+	int sysctl_id;
+
 	struct semaphore update_lock;
 	char valid;		/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
@@ -391,13 +393,258 @@ static int via686a_attach_adapter(struct i2c_adapter *adapter);
 static int via686a_detect(struct i2c_adapter *adapter, int address, int kind);
 static int via686a_detach_client(struct i2c_client *client);
 
-static int via686a_read_value(struct i2c_client *client, u8 register);
-static void via686a_write_value(struct i2c_client *client, u8 register,
-				u8 value);
+static inline int via686a_read_value(struct i2c_client *client, u8 reg)
+{
+	return (inb_p(client->addr + reg));
+}
+
+static inline void via686a_write_value(struct i2c_client *client, u8 reg,
+				       u8 value)
+{
+	outb_p(value, client->addr + reg);
+}
+
 static void via686a_update_client(struct i2c_client *client);
 static void via686a_init_client(struct i2c_client *client);
 
-static int via686a_id = 0;
+/* following are the sysfs callback functions */
+
+/* 7 voltage sensors */
+static ssize_t show_in(struct device *dev, char *buf, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf, "%ld\n", IN_FROM_REG(data->in[nr], nr)*10 );
+}
+
+static ssize_t show_in_min(struct device *dev, char *buf, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf, "%ld\n", IN_FROM_REG(data->in_min[nr], nr)*10 );
+}
+
+static ssize_t show_in_max(struct device *dev, char *buf, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf, "%ld\n", IN_FROM_REG(data->in_max[nr], nr)*10 );
+}
+
+static ssize_t set_in_min(struct device *dev, const char *buf, 
+		size_t count, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10)/10;
+	data->in_min[nr] = IN_TO_REG(val,nr);
+	via686a_write_value(client, VIA686A_REG_IN_MIN(nr), 
+			data->in_min[nr]);
+	return count;
+}
+static ssize_t set_in_max(struct device *dev, const char *buf, 
+		size_t count, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10)/10;
+	data->in_max[nr] = IN_TO_REG(val,nr);
+	via686a_write_value(client, VIA686A_REG_IN_MAX(nr), 
+			data->in_max[nr]);
+	return count;
+}
+#define show_in_offset(offset)					\
+static ssize_t 							\
+	show_in##offset (struct device *dev, char *buf)		\
+{								\
+	return show_in(dev, buf, 0x##offset);			\
+}								\
+static ssize_t 							\
+	show_in##offset##_min (struct device *dev, char *buf)	\
+{								\
+	return show_in_min(dev, buf, 0x##offset);		\
+}								\
+static ssize_t 							\
+	show_in##offset##_max (struct device *dev, char *buf)	\
+{								\
+	return show_in_max(dev, buf, 0x##offset);		\
+}								\
+static ssize_t set_in##offset##_min (struct device *dev, 	\
+		const char *buf, size_t count) 			\
+{								\
+	return set_in_min(dev, buf, count, 0x##offset);		\
+}								\
+static ssize_t set_in##offset##_max (struct device *dev,	\
+			const char *buf, size_t count)		\
+{								\
+	return set_in_max(dev, buf, count, 0x##offset);		\
+}								\
+static DEVICE_ATTR(in_input##offset, S_IRUGO, show_in##offset, NULL) 	\
+static DEVICE_ATTR(in_min##offset, S_IRUGO | S_IWUSR, 		\
+		show_in##offset##_min, set_in##offset##_min)	\
+static DEVICE_ATTR(in_max##offset, S_IRUGO | S_IWUSR, 		\
+		show_in##offset##_max, set_in##offset##_max)
+
+show_in_offset(0);
+show_in_offset(1);
+show_in_offset(2);
+show_in_offset(3);
+show_in_offset(4);
+
+/* 3 temperatures */
+static ssize_t show_temp(struct device *dev, char *buf, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf, "%ld\n", TEMP_FROM_REG10(data->temp[nr])*10 );
+}
+/* more like overshoot temperature */
+static ssize_t show_temp_max(struct device *dev, char *buf, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp_over[nr])*10);
+}
+/* more like hysteresis temperature */
+static ssize_t show_temp_min(struct device *dev, char *buf, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp_hyst[nr])*10);
+}
+static ssize_t set_temp_max(struct device *dev, const char *buf, 
+		size_t count, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10)/10;
+	data->temp_over[nr] = TEMP_TO_REG(val);
+	via686a_write_value(client, VIA686A_REG_TEMP_OVER(nr), data->temp_over[nr]);
+	return count;
+}
+static ssize_t set_temp_min(struct device *dev, const char *buf, 
+		size_t count, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10)/10;
+	data->temp_hyst[nr] = TEMP_TO_REG(val);
+	via686a_write_value(client, VIA686A_REG_TEMP_HYST(nr), data->temp_hyst[nr]);
+	return count;
+}
+#define show_temp_offset(offset)					\
+static ssize_t show_temp_##offset (struct device *dev, char *buf)	\
+{									\
+	return show_temp(dev, buf, 0x##offset - 1);			\
+}									\
+static ssize_t								\
+show_temp_##offset##_max (struct device *dev, char *buf)		\
+{									\
+	return show_temp_max(dev, buf, 0x##offset - 1);			\
+}									\
+static ssize_t								\
+show_temp_##offset##_min (struct device *dev, char *buf)		\
+{									\
+	return show_temp_min(dev, buf, 0x##offset - 1);			\
+}									\
+static ssize_t set_temp_##offset##_max (struct device *dev, 		\
+		const char *buf, size_t count) 				\
+{									\
+	return set_temp_max(dev, buf, count, 0x##offset - 1);		\
+}									\
+static ssize_t set_temp_##offset##_min (struct device *dev, 		\
+		const char *buf, size_t count) 				\
+{									\
+	return set_temp_min(dev, buf, count, 0x##offset - 1);		\
+}									\
+static DEVICE_ATTR(temp_input##offset, S_IRUGO, show_temp_##offset, NULL) \
+static DEVICE_ATTR(temp_max##offset, S_IRUGO | S_IWUSR, 		\
+		show_temp_##offset##_max, set_temp_##offset##_max) 	\
+static DEVICE_ATTR(temp_min##offset, S_IRUGO | S_IWUSR, 		\
+		show_temp_##offset##_min, set_temp_##offset##_min)	
+
+show_temp_offset(1);
+show_temp_offset(2);
+show_temp_offset(3);
+
+/* 2 Fans */
+static ssize_t show_fan(struct device *dev, char *buf, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr], 
+				DIV_FROM_REG(data->fan_div[nr])) );
+}
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf,"%d\n",
+		FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])) );
+}
+static ssize_t show_fan_div(struct device *dev, char *buf, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf,"%d\n", DIV_FROM_REG(data->fan_div[nr]) );
+}
+static ssize_t set_fan_min(struct device *dev, const char *buf, 
+		size_t count, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	via686a_write_value(client, VIA686A_REG_FAN_MIN(nr+1), data->fan_min[nr]);
+	return count;
+}
+static ssize_t set_fan_div(struct device *dev, const char *buf, 
+		size_t count, int nr) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+	int old = via686a_read_value(client, VIA686A_REG_FANDIV);
+	data->fan_div[nr] = DIV_TO_REG(val);
+	old = (old & 0x0f) | (data->fan_div[1] << 6) | (data->fan_div[0] << 4);
+	via686a_write_value(client, VIA686A_REG_FANDIV, old);
+	return count;
+}
+
+#define show_fan_offset(offset)						\
+static ssize_t show_fan_##offset (struct device *dev, char *buf)	\
+{									\
+	return show_fan(dev, buf, 0x##offset - 1);			\
+}									\
+static ssize_t show_fan_##offset##_min (struct device *dev, char *buf)	\
+{									\
+	return show_fan_min(dev, buf, 0x##offset - 1);			\
+}									\
+static ssize_t show_fan_##offset##_div (struct device *dev, char *buf)	\
+{									\
+	return show_fan_div(dev, buf, 0x##offset - 1);			\
+}									\
+static ssize_t set_fan_##offset##_min (struct device *dev, 		\
+	const char *buf, size_t count) 					\
+{									\
+	return set_fan_min(dev, buf, count, 0x##offset - 1);		\
+}									\
+static ssize_t set_fan_##offset##_div (struct device *dev, 		\
+		const char *buf, size_t count) 				\
+{									\
+	return set_fan_div(dev, buf, count, 0x##offset - 1);		\
+}									\
+static DEVICE_ATTR(fan_input##offset, S_IRUGO, show_fan_##offset, NULL) \
+static DEVICE_ATTR(fan_min##offset, S_IRUGO | S_IWUSR, 			\
+		show_fan_##offset##_min, set_fan_##offset##_min) 	\
+static DEVICE_ATTR(fan_div##offset, S_IRUGO | S_IWUSR, 			\
+		show_fan_##offset##_div, set_fan_##offset##_div)
+
+show_fan_offset(1);
+show_fan_offset(2);
+
+/* Alarm */
+static ssize_t show_alarm(struct device *dev, char *buf) {
+	struct i2c_client *client = to_i2c_client(dev);
+	struct via686a_data *data = i2c_get_clientdata(client);
+	via686a_update_client(client);
+	return sprintf(buf,"%d\n", ALARMS_FROM_REG(data->alarms));
+}
+static DEVICE_ATTR(alarm, S_IRUGO | S_IWUSR, show_alarm, NULL);
 
 /* The driver. I choose to use type i2c_driver, as at is identical to both
    smbus_driver and isa_driver, and clients could be of either kind */
@@ -411,83 +658,6 @@ static struct i2c_driver via686a_driver = {
 };
 
 
-
-/* The /proc/sys entries */
-
-/* -- SENSORS SYSCTL START -- */
-#define VIA686A_SYSCTL_IN0 1000
-#define VIA686A_SYSCTL_IN1 1001
-#define VIA686A_SYSCTL_IN2 1002
-#define VIA686A_SYSCTL_IN3 1003
-#define VIA686A_SYSCTL_IN4 1004
-#define VIA686A_SYSCTL_FAN1 1101
-#define VIA686A_SYSCTL_FAN2 1102
-#define VIA686A_SYSCTL_TEMP 1200
-#define VIA686A_SYSCTL_TEMP2 1201
-#define VIA686A_SYSCTL_TEMP3 1202
-#define VIA686A_SYSCTL_FAN_DIV 2000
-#define VIA686A_SYSCTL_ALARMS 2001
-
-#define VIA686A_ALARM_IN0 0x01
-#define VIA686A_ALARM_IN1 0x02
-#define VIA686A_ALARM_IN2 0x04
-#define VIA686A_ALARM_IN3 0x08
-#define VIA686A_ALARM_TEMP 0x10
-#define VIA686A_ALARM_FAN1 0x40
-#define VIA686A_ALARM_FAN2 0x80
-#define VIA686A_ALARM_IN4 0x100
-#define VIA686A_ALARM_TEMP2 0x800
-#define VIA686A_ALARM_CHAS 0x1000
-#define VIA686A_ALARM_TEMP3 0x8000
-
-/* -- SENSORS SYSCTL END -- */
-
-#if 0
-/* These files are created for each detected VIA686A. This is just a template;
-   though at first sight, you might think we could use a statically
-   allocated list, we need some way to get back to the parent - which
-   is done through one of the 'extra' fields which are initialized 
-   when a new copy is allocated. */
-static ctl_table via686a_dir_table_template[] = {
-	{VIA686A_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &via686a_in},
-	{VIA686A_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &via686a_in},
-	{VIA686A_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &via686a_in},
-	{VIA686A_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &via686a_in},
-	{VIA686A_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &via686a_in},
-	{VIA686A_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &via686a_fan},
-	{VIA686A_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &via686a_fan},
-	{VIA686A_SYSCTL_TEMP, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
-	 &i2c_sysctl_real, NULL, &via686a_temp},
-	{VIA686A_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL,
-	 &i2c_proc_real, &i2c_sysctl_real, NULL, &via686a_temp},
-	{VIA686A_SYSCTL_TEMP3, "temp3", NULL, 0, 0644, NULL,
-	 &i2c_proc_real, &i2c_sysctl_real, NULL, &via686a_temp},
-	{VIA686A_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL,
-	 &i2c_proc_real, &i2c_sysctl_real, NULL, &via686a_fan_div},
-	{VIA686A_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL,
-	 &i2c_proc_real, &i2c_sysctl_real, NULL, &via686a_alarms},
-	{0}
-};
-#endif
-
-static inline int via686a_read_value(struct i2c_client *client, u8 reg)
-{
-	return (inb_p(client->addr + reg));
-}
-
-static inline void via686a_write_value(struct i2c_client *client, u8 reg,
-				       u8 value)
-{
-	outb_p(value, client->addr + reg);
-}
-
 /* This is called when the module is loaded */
 static int via686a_attach_adapter(struct i2c_adapter *adapter)
 {
@@ -499,7 +669,7 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
 	struct i2c_client *new_client;
 	struct via686a_data *data;
 	int err = 0;
-	const char *name = "via686a";
+	const char client_name[] = "via686a chip";
 	u16 val;
 
 	/* Make sure we are probing the ISA bus!!  */
@@ -552,16 +722,49 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
 	new_client->adapter = adapter;
 	new_client->driver = &via686a_driver;
 	new_client->flags = 0;
+	new_client->dev.parent = &adapter->dev;
 
 	/* Fill in the remaining client fields and put into the global list */
-	snprintf(new_client->dev.name, DEVICE_NAME_SIZE, name);
+	snprintf(new_client->dev.name, DEVICE_NAME_SIZE, client_name);
 
-	new_client->id = via686a_id++;
 	data->valid = 0;
 	init_MUTEX(&data->update_lock);
 	/* Tell the I2C layer a new client has arrived */
 	if ((err = i2c_attach_client(new_client)))
 		goto ERROR3;
+	
+	/* register sysfs hooks */
+	device_create_file(&new_client->dev, &dev_attr_in_input0);
+	device_create_file(&new_client->dev, &dev_attr_in_input1);
+	device_create_file(&new_client->dev, &dev_attr_in_input2);
+	device_create_file(&new_client->dev, &dev_attr_in_input3);
+	device_create_file(&new_client->dev, &dev_attr_in_input4);
+	device_create_file(&new_client->dev, &dev_attr_in_min0);
+	device_create_file(&new_client->dev, &dev_attr_in_min1);
+	device_create_file(&new_client->dev, &dev_attr_in_min2);
+	device_create_file(&new_client->dev, &dev_attr_in_min3);
+	device_create_file(&new_client->dev, &dev_attr_in_min4);
+	device_create_file(&new_client->dev, &dev_attr_in_max0);
+	device_create_file(&new_client->dev, &dev_attr_in_max1);
+	device_create_file(&new_client->dev, &dev_attr_in_max2);
+	device_create_file(&new_client->dev, &dev_attr_in_max3);
+	device_create_file(&new_client->dev, &dev_attr_in_max4);
+	device_create_file(&new_client->dev, &dev_attr_temp_input1);
+	device_create_file(&new_client->dev, &dev_attr_temp_input2);
+	device_create_file(&new_client->dev, &dev_attr_temp_input3);
+	device_create_file(&new_client->dev, &dev_attr_temp_max1);
+	device_create_file(&new_client->dev, &dev_attr_temp_max2);
+	device_create_file(&new_client->dev, &dev_attr_temp_max3);
+	device_create_file(&new_client->dev, &dev_attr_temp_min1);
+	device_create_file(&new_client->dev, &dev_attr_temp_min2);
+	device_create_file(&new_client->dev, &dev_attr_temp_min3);
+	device_create_file(&new_client->dev, &dev_attr_fan_input1);
+	device_create_file(&new_client->dev, &dev_attr_fan_input2);
+	device_create_file(&new_client->dev, &dev_attr_fan_min1);
+	device_create_file(&new_client->dev, &dev_attr_fan_min2);
+	device_create_file(&new_client->dev, &dev_attr_fan_div1);
+	device_create_file(&new_client->dev, &dev_attr_fan_div2);
+	device_create_file(&new_client->dev, &dev_attr_alarm);
 
 	/* Initialize the VIA686A chip */
 	via686a_init_client(new_client);
@@ -629,7 +832,7 @@ static void via686a_init_client(struct i2c_client *client)
 			    FAN_TO_REG(VIA686A_INIT_FAN_MIN, 2));
 	via686a_write_value(client, VIA686A_REG_FAN_MIN(2),
 			    FAN_TO_REG(VIA686A_INIT_FAN_MIN, 2));
-	for (i = 1; i <= 3; i++) {
+	for (i = 0; i <= 2; i++) {
 		via686a_write_value(client, VIA686A_REG_TEMP_OVER(i),
 				    TEMP_TO_REG(VIA686A_INIT_TEMP_OVER));
 		via686a_write_value(client, VIA686A_REG_TEMP_HYST(i),
@@ -670,13 +873,13 @@ static void via686a_update_client(struct i2c_client *client)
 			data->fan_min[i - 1] = via686a_read_value(client,
 						     VIA686A_REG_FAN_MIN(i));
 		}
-		for (i = 1; i <= 3; i++) {
-			data->temp[i - 1] = via686a_read_value(client,
+		for (i = 0; i <= 2; i++) {
+			data->temp[i] = via686a_read_value(client,
 						 VIA686A_REG_TEMP(i)) << 2;
-			data->temp_over[i - 1] =
+			data->temp_over[i] =
 			    via686a_read_value(client,
 					       VIA686A_REG_TEMP_OVER(i));
-			data->temp_hyst[i - 1] =
+			data->temp_hyst[i] =
 			    via686a_read_value(client,
 					       VIA686A_REG_TEMP_HYST(i));
 		}
@@ -709,164 +912,12 @@ static void via686a_update_client(struct i2c_client *client)
 	up(&data->update_lock);
 }
 
-
-/* The next few functions are the call-back functions of the /proc/sys and
-   sysctl files. Which function is used is defined in the ctl_table in
-   the extra1 field.
-   Each function must return the magnitude (power of 10 to divide the date
-   with) if it is called with operation==SENSORS_PROC_REAL_INFO. It must
-   put a maximum of *nrels elements in results reflecting the data of this
-   file, and set *nrels to the number it actually put in it, if operation==
-   SENSORS_PROC_REAL_READ. Finally, it must get upto *nrels elements from
-   results and write them to the chip, if operations==SENSORS_PROC_REAL_WRITE.
-   Note that on SENSORS_PROC_REAL_READ, I do not check whether results is
-   large enough (by checking the incoming value of *nrels). This is not very
-   good practice, but as long as you put less than about 5 values in results,
-   you can assume it is large enough. */
-/* FIXME, remove these functions, they are here to verify the sysfs conversion
- * is correct, or not */
-__attribute__((unused))
-static void via686a_in(struct i2c_client *client, int operation, int ctl_name,
-               int *nrels_mag, long *results)
-{
-	struct via686a_data *data = i2c_get_clientdata(client);
-	int nr = ctl_name - VIA686A_SYSCTL_IN0;
-
-	if (operation == SENSORS_PROC_REAL_INFO)
-		*nrels_mag = 2;
-	else if (operation == SENSORS_PROC_REAL_READ) {
-		via686a_update_client(client);
-		results[0] = IN_FROM_REG(data->in_min[nr], nr);
-		results[1] = IN_FROM_REG(data->in_max[nr], nr);
-		results[2] = IN_FROM_REG(data->in[nr], nr);
-		*nrels_mag = 3;
-	} else if (operation == SENSORS_PROC_REAL_WRITE) {
-		if (*nrels_mag >= 1) {
-			data->in_min[nr] = IN_TO_REG(results[0], nr);
-			via686a_write_value(client, VIA686A_REG_IN_MIN(nr),
-					    data->in_min[nr]);
-		}
-		if (*nrels_mag >= 2) {
-			data->in_max[nr] = IN_TO_REG(results[1], nr);
-			via686a_write_value(client, VIA686A_REG_IN_MAX(nr),
-					    data->in_max[nr]);
-		}
-	}
-}
-
-__attribute__((unused))
-static void via686a_fan(struct i2c_client *client, int operation, int ctl_name,
-		 int *nrels_mag, long *results)
-{
-	struct via686a_data *data = i2c_get_clientdata(client);
-	int nr = ctl_name - VIA686A_SYSCTL_FAN1 + 1;
-
-	if (operation == SENSORS_PROC_REAL_INFO)
-		*nrels_mag = 0;
-	else if (operation == SENSORS_PROC_REAL_READ) {
-		via686a_update_client(client);
-		results[0] = FAN_FROM_REG(data->fan_min[nr - 1],
-					  DIV_FROM_REG(data->fan_div
-						       [nr - 1]));
-		results[1] = FAN_FROM_REG(data->fan[nr - 1],
-				 DIV_FROM_REG(data->fan_div[nr - 1]));
-		*nrels_mag = 2;
-	} else if (operation == SENSORS_PROC_REAL_WRITE) {
-		if (*nrels_mag >= 1) {
-			data->fan_min[nr - 1] = FAN_TO_REG(results[0], 
-							   DIV_FROM_REG(data->
-							      fan_div[nr -1]));
-			via686a_write_value(client,
-					    VIA686A_REG_FAN_MIN(nr),
-					    data->fan_min[nr - 1]);
-		}
-	}
-}
-
-__attribute__((unused))
-static void via686a_temp(struct i2c_client *client, int operation, int ctl_name,
-		  int *nrels_mag, long *results)
-{
-	struct via686a_data *data = i2c_get_clientdata(client);
-	int nr = ctl_name - VIA686A_SYSCTL_TEMP;
-
-	if (operation == SENSORS_PROC_REAL_INFO)
-		*nrels_mag = 1;
-	else if (operation == SENSORS_PROC_REAL_READ) {
-		via686a_update_client(client);
-		results[0] = TEMP_FROM_REG(data->temp_over[nr]);
-		results[1] = TEMP_FROM_REG(data->temp_hyst[nr]);
-		results[2] = TEMP_FROM_REG10(data->temp[nr]);
-		*nrels_mag = 3;
-	} else if (operation == SENSORS_PROC_REAL_WRITE) {
-		if (*nrels_mag >= 1) {
-			data->temp_over[nr] = TEMP_TO_REG(results[0]);
-			via686a_write_value(client,
-					    VIA686A_REG_TEMP_OVER(nr + 1),
-					    data->temp_over[nr]);
-		}
-		if (*nrels_mag >= 2) {
-			data->temp_hyst[nr] = TEMP_TO_REG(results[1]);
-			via686a_write_value(client,
-					    VIA686A_REG_TEMP_HYST(nr + 1),
-					    data->temp_hyst[nr]);
-		}
-	}
-}
-
-__attribute__((unused))
-static void via686a_alarms(struct i2c_client *client, int operation, int ctl_name,
-		    int *nrels_mag, long *results)
-{
-	struct via686a_data *data = i2c_get_clientdata(client);
-	if (operation == SENSORS_PROC_REAL_INFO)
-		*nrels_mag = 0;
-	else if (operation == SENSORS_PROC_REAL_READ) {
-		via686a_update_client(client);
-		results[0] = ALARMS_FROM_REG(data->alarms);
-		*nrels_mag = 1;
-	}
-}
-
-__attribute__((unused))
-static void via686a_fan_div(struct i2c_client *client, int operation,
-		     int ctl_name, int *nrels_mag, long *results)
-{
-	struct via686a_data *data = i2c_get_clientdata(client);
-	int old;
-
-	if (operation == SENSORS_PROC_REAL_INFO)
-		*nrels_mag = 0;
-	else if (operation == SENSORS_PROC_REAL_READ) {
-		via686a_update_client(client);
-		results[0] = DIV_FROM_REG(data->fan_div[0]);
-		results[1] = DIV_FROM_REG(data->fan_div[1]);
-		*nrels_mag = 2;
-	} else if (operation == SENSORS_PROC_REAL_WRITE) {
-		old = via686a_read_value(client, VIA686A_REG_FANDIV);
-		if (*nrels_mag >= 2) {
-			data->fan_div[1] = DIV_TO_REG(results[1]);
-			old = (old & 0x3f) | (data->fan_div[1] << 6);
-		}
-		if (*nrels_mag >= 1) {
-			data->fan_div[0] = DIV_TO_REG(results[0]);
-			old = (old & 0xcf) | (data->fan_div[0] << 4);
-			via686a_write_value(client, VIA686A_REG_FANDIV,
-					    old);
-		}
-	}
-}
-
-
 static struct pci_device_id via686a_pci_ids[] __devinitdata = {
        {
 	       .vendor 		= PCI_VENDOR_ID_VIA, 
 	       .device 		= PCI_DEVICE_ID_VIA_82C686_4, 
 	       .subvendor	= PCI_ANY_ID, 
 	       .subdevice	= PCI_ANY_ID, 
-	       .class		= 0, 
-	       .class_mask	= 0, 
-	       .driver_data	= 0, 
        },
        { 0, }
 };

drivers/i2c/chips/w83781d.c

@@ -364,7 +364,7 @@ static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
 	 \
 	w83781d_update_client(client); \
 	 \
-	return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr])); \
+	return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr] * 10)); \
 }
 show_in_reg(in);
 show_in_reg(in_min);
@@ -378,7 +378,7 @@ static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t count
 	u32 val; \
 	 \
 	val = simple_strtoul(buf, NULL, 10); \
-	data->in_##reg[nr] = IN_TO_REG(val); \
+	data->in_##reg[nr] = (IN_TO_REG(val) / 10); \
 	w83781d_write_value(client, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
 	 \
 	return count; \
@@ -712,7 +712,7 @@ store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct w83781d_data *data = i2c_get_clientdata(client);
-	u32 val, old, old2, old3;
+	u32 val, old, old2, old3 = 0;
 
 	val = simple_strtoul(buf, NULL, 10);
 	old = w83781d_read_value(client, W83781D_REG_VID_FANDIV);

drivers/i2c/i2c-adap-ite.c

@@ -196,9 +196,11 @@ static struct i2c_algo_iic_data iic_ite_data = {
 
 static struct i2c_adapter iic_ite_ops = {
 	.owner		= THIS_MODULE,
-	.name		= "ITE IIC adapter",
 	.id		= I2C_HW_I_IIC,
 	.algo_data	= &iic_ite_data,
+	.dev		= {
+		.name	= "ITE IIC adapter",
+	},
 };
 
 /* Called when the module is loaded.  This function starts the

drivers/i2c/i2c-dev.c

@@ -77,7 +77,7 @@ static struct i2c_adapter *i2cdev_adaps[I2CDEV_ADAPS_MAX];
 
 static struct i2c_driver i2cdev_driver = {
 	.owner		= THIS_MODULE,
-	.name		= "i2c-dev dummy driver",
+	.name		= "dev driver",
 	.id		= I2C_DRIVERID_I2CDEV,
 	.flags		= I2C_DF_DUMMY,
 	.attach_adapter	= i2cdev_attach_adapter,
@@ -100,10 +100,6 @@ static ssize_t i2cdev_read (struct file *file, char *buf, size_t count,
 	char *tmp;
 	int ret;
 
-#ifdef DEBUG
-	struct inode *inode = file->f_dentry->d_inode;
-#endif /* DEBUG */
-
 	struct i2c_client *client = (struct i2c_client *)file->private_data;
 
 	if (count > 8192)
@@ -114,10 +110,8 @@ static ssize_t i2cdev_read (struct file *file, char *buf, size_t count,
 	if (tmp==NULL)
 		return -ENOMEM;
 
-#ifdef DEBUG
-	printk(KERN_DEBUG "i2c-dev.o: i2c-%d reading %d bytes.\n",minor(inode->i_rdev),
-	       count);
-#endif
+	pr_debug("i2c-dev.o: i2c-%d reading %d bytes.\n",
+		minor(file->f_dentry->d_inode->i_rdev), count);
 
 	ret = i2c_master_recv(client,tmp,count);
 	if (ret >= 0)
@@ -133,10 +127,6 @@ static ssize_t i2cdev_write (struct file *file, const char *buf, size_t count,
 	char *tmp;
 	struct i2c_client *client = (struct i2c_client *)file->private_data;
 
-#ifdef DEBUG
-	struct inode *inode = file->f_dentry->d_inode;
-#endif /* DEBUG */
-
 	if (count > 8192)
 		count = 8192;
 
@@ -149,10 +139,9 @@ static ssize_t i2cdev_write (struct file *file, const char *buf, size_t count,
 		return -EFAULT;
 	}
 
-#ifdef DEBUG
-	printk(KERN_DEBUG "i2c-dev.o: i2c-%d writing %d bytes.\n",minor(inode->i_rdev),
-	       count);
-#endif
+	pr_debug("i2c-dev.o: i2c-%d writing %d bytes.\n",
+		minor(file->f_dentry->d_inode->i_rdev), count);
+
 	ret = i2c_master_send(client,tmp,count);
 	kfree(tmp);
 	return ret;
@@ -169,10 +158,8 @@ int i2cdev_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
 	int i,datasize,res;
 	unsigned long funcs;
 
-#ifdef DEBUG
-	printk(KERN_DEBUG "i2c-dev.o: i2c-%d ioctl, cmd: 0x%x, arg: %lx.\n", 
-	       minor(inode->i_rdev),cmd, arg);
-#endif /* DEBUG */
+	pr_debug("i2c-dev.o: i2c-%d ioctl, cmd: 0x%x, arg: %lx.\n",
+		minor(inode->i_rdev),cmd, arg);
 
 	switch ( cmd ) {
 	case I2C_SLAVE:
@@ -207,6 +194,11 @@ int i2cdev_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
 				   sizeof(rdwr_arg)))
 			return -EFAULT;
 
+		/* Put an arbritrary limit on the number of messages that can
+		 * be sent at once */
+		if (rdwr_arg.nmsgs > 42)
+			return -EINVAL;
+		
 		rdwr_pa = (struct i2c_msg *)
 			kmalloc(rdwr_arg.nmsgs * sizeof(struct i2c_msg), 
 			GFP_KERNEL);
@@ -214,38 +206,43 @@ int i2cdev_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
 		if (rdwr_pa == NULL) return -ENOMEM;
 
 		res = 0;
-		for( i=0; i<rdwr_arg.nmsgs; i++ )
-		{
+		for( i=0; i<rdwr_arg.nmsgs; i++ ) {
 		    	if(copy_from_user(&(rdwr_pa[i]),
 					&(rdwr_arg.msgs[i]),
-					sizeof(rdwr_pa[i])))
-			{
+					sizeof(rdwr_pa[i]))) {
 			        res = -EFAULT;
 				break;
 			}
+			/* Limit the size of the message to a sane amount */
+			if (rdwr_pa[i].len > 8192) {
+				res = -EINVAL;
+				break;
+			}
 			rdwr_pa[i].buf = kmalloc(rdwr_pa[i].len, GFP_KERNEL);
-			if(rdwr_pa[i].buf == NULL)
-			{
+			if(rdwr_pa[i].buf == NULL) {
 				res = -ENOMEM;
 				break;
 			}
 			if(copy_from_user(rdwr_pa[i].buf,
 				rdwr_arg.msgs[i].buf,
-				rdwr_pa[i].len))
-			{
-			    	kfree(rdwr_pa[i].buf);
+				rdwr_pa[i].len)) {
 			    	res = -EFAULT;
 				break;
 			}
 		}
-		if (!res) 
-		{
+		if (res < 0) {
+			int j;
+			for (j = 0; j < i; ++j)
+				kfree(rdwr_pa[j].buf);
+			kfree(rdwr_pa);
+			return res;
+		}
+		if (!res) {
 			res = i2c_transfer(client->adapter,
 				rdwr_pa,
 				rdwr_arg.nmsgs);
 		}
-		while(i-- > 0)
-		{
+		while(i-- > 0) {
 			if( res>=0 && (rdwr_pa[i].flags & I2C_M_RD))
 			{
 				if(copy_to_user(
@@ -274,20 +271,18 @@ int i2cdev_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
 		    (data_arg.size != I2C_SMBUS_BLOCK_DATA) &&
 		    (data_arg.size != I2C_SMBUS_I2C_BLOCK_DATA) &&
 		    (data_arg.size != I2C_SMBUS_BLOCK_PROC_CALL)) {
-#ifdef DEBUG
-			printk(KERN_DEBUG "i2c-dev.o: size out of range (%x) in ioctl I2C_SMBUS.\n",
-			       data_arg.size);
-#endif
+			dev_dbg(&client->dev,
+				"size out of range (%x) in ioctl I2C_SMBUS.\n",
+				data_arg.size);
 			return -EINVAL;
 		}
 		/* Note that I2C_SMBUS_READ and I2C_SMBUS_WRITE are 0 and 1, 
 		   so the check is valid if size==I2C_SMBUS_QUICK too. */
 		if ((data_arg.read_write != I2C_SMBUS_READ) && 
 		    (data_arg.read_write != I2C_SMBUS_WRITE)) {
-#ifdef DEBUG
-			printk(KERN_DEBUG "i2c-dev.o: read_write out of range (%x) in ioctl I2C_SMBUS.\n",
-			       data_arg.read_write);
-#endif
+			dev_dbg(&client->dev, 
+				"read_write out of range (%x) in ioctl I2C_SMBUS.\n",
+				data_arg.read_write);
 			return -EINVAL;
 		}
 
@@ -298,15 +293,14 @@ int i2cdev_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
 		    (data_arg.read_write == I2C_SMBUS_WRITE)))
 			/* These are special: we do not use data */
 			return i2c_smbus_xfer(client->adapter, client->addr,
-			                      client->flags,
-			                      data_arg.read_write,
-			                      data_arg.command,
-			                      data_arg.size, NULL);
+					      client->flags,
+					      data_arg.read_write,
+					      data_arg.command,
+					      data_arg.size, NULL);
 
 		if (data_arg.data == NULL) {
-#ifdef DEBUG
-			printk(KERN_DEBUG "i2c-dev.o: data is NULL pointer in ioctl I2C_SMBUS.\n");
-#endif
+			dev_dbg(&client->dev,
+				"data is NULL pointer in ioctl I2C_SMBUS.\n");
 			return -EINVAL;
 		}
 
@@ -365,7 +359,7 @@ static int i2cdev_open(struct inode *inode, struct file *file)
 
 	return 0;
 
- out_kfree:
+out_kfree:
 	kfree(client);
 	return -ENODEV;
 }
@@ -428,7 +422,8 @@ int __init i2c_dev_init(void)
 {
 	int res;
 
-	printk(KERN_INFO "i2c-dev.o: i2c /dev entries driver module version %s (%s)\n", I2C_VERSION, I2C_DATE);
+	printk(KERN_INFO "i2c /dev entries driver module version %s (%s)\n",
+		I2C_VERSION, I2C_DATE);
 
 	if (register_chrdev(I2C_MAJOR,"i2c",&i2cdev_fops)) {
 		printk(KERN_ERR "i2c-dev.o: unable to get major %d for i2c bus\n",

drivers/i2c/i2c-frodo.c

@@ -59,9 +59,11 @@ static struct i2c_algo_bit_data bit_frodo_data = {
 
 static struct i2c_adapter frodo_ops = {
 	.owner			= THIS_MODULE,
-	.name			= "Frodo adapter driver",
 	.id			= I2C_HW_B_FRODO,
 	.algo_data		= &bit_frodo_data,
+	.dev			= {
+		.name		= "Frodo adapter driver",
+	},
 };
 
 static int __init i2c_frodo_init (void)

drivers/i2c/scx200_i2c.c

@@ -82,9 +82,11 @@ static struct i2c_algo_bit_data scx200_i2c_data = {
 
 static struct i2c_adapter scx200_i2c_ops = {
 	.owner		   = THIS_MODULE,
-	.name              = "NatSemi SCx200 I2C",
 	.id		   = I2C_HW_B_VELLE,
 	.algo_data	   = &scx200_i2c_data,
+	.dev		= {
+		.name	= "NatSemi SCx200 I2C",
+	},
 };
 
 int scx200_i2c_init(void)
@@ -110,7 +112,7 @@ int scx200_i2c_init(void)
 
 	if (i2c_bit_add_bus(&scx200_i2c_ops) < 0) {
 		printk(KERN_ERR NAME ": adapter %s registration failed\n", 
-		       scx200_i2c_ops.name);
+		       scx200_i2c_ops.dev.name);
 		return -ENODEV;
 	}
 	

include/linux/i2c-dev.h

@@ -31,16 +31,16 @@
 
 /* This is the structure as used in the I2C_SMBUS ioctl call */
 struct i2c_smbus_ioctl_data {
-	char read_write;
+	__u8 read_write;
 	__u8 command;
-	int size;
+	__u32 size;
 	union i2c_smbus_data *data;
 };
 
 /* This is the structure as used in the I2C_RDWR ioctl call */
 struct i2c_rdwr_ioctl_data {
 	struct i2c_msg *msgs;	/* pointers to i2c_msgs */
-	int nmsgs;		/* number of i2c_msgs */
+	__u32 nmsgs;		/* number of i2c_msgs */
 };
 
 #endif /* _LINUX_I2C_DEV_H */

include/linux/i2c.h

@@ -182,6 +182,13 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
 	return dev_set_drvdata (&dev->dev, data);
 }
 
+#define I2C_DEVNAME(str)   .dev = { .name = str }
+
+static inline char *i2c_clientname(struct i2c_client *c)
+{
+	return c->dev.name;
+}
+
 /*
  * The following structs are for those who like to implement new bus drivers:
  * i2c_algorithm is the interface to a class of hardware solutions which can
@@ -360,15 +367,15 @@ extern int i2c_check_functionality (struct i2c_adapter *adap, u32 func);
  */
 struct i2c_msg {
 	__u16 addr;	/* slave address			*/
-	unsigned short flags;		
+ 	__u16 flags;		
 #define I2C_M_TEN	0x10	/* we have a ten bit chip address	*/
 #define I2C_M_RD	0x01
 #define I2C_M_NOSTART	0x4000
 #define I2C_M_REV_DIR_ADDR	0x2000
 #define I2C_M_IGNORE_NAK	0x1000
 #define I2C_M_NO_RD_ACK		0x0800
-	short len;		/* msg length				*/
-	char *buf;		/* pointer to msg data			*/
+ 	__u16 len;		/* msg length				*/
+ 	__u8 *buf;		/* pointer to msg data			*/
 };
 
 /* To determine what functionality is present */