#include <linux/hwmon-sysfs.h>
#include <linux/hwmon.h>
#include <linux/err.h>
-#include <linux/mutex.h>
/*
* Addresses to scan
struct lm83_data {
struct i2c_client client;
struct class_device *class_dev;
- struct mutex update_lock;
+ struct semaphore update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
long val = simple_strtol(buf, NULL, 10);
int nr = attr->index;
- mutex_lock(&data->update_lock);
+ down(&data->update_lock);
data->temp[nr] = TEMP_TO_REG(val);
i2c_smbus_write_byte_data(client, LM83_REG_W_HIGH[nr - 4],
data->temp[nr]);
- mutex_unlock(&data->update_lock);
+ up(&data->update_lock);
return count;
}
/* We can fill in the remaining client fields */
strlcpy(new_client->name, name, I2C_NAME_SIZE);
data->valid = 0;
- mutex_init(&data->update_lock);
+ init_MUTEX(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
struct i2c_client *client = to_i2c_client(dev);
struct lm83_data *data = i2c_get_clientdata(client);
- mutex_lock(&data->update_lock);
+ down(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
int nr;
data->valid = 1;
}
- mutex_unlock(&data->update_lock);
+ up(&data->update_lock);
return data;
}