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path: root/drivers/i2c/i2c-dev.c
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Diffstat (limited to 'drivers/i2c/i2c-dev.c')
-rw-r--r--drivers/i2c/i2c-dev.c72
1 files changed, 35 insertions, 37 deletions
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 3f869033ed70..ac5bd2a7ca99 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -1,5 +1,5 @@
/*
- i2c-dev.c - i2c-bus driver, char device interface
+ i2c-dev.c - i2c-bus driver, char device interface
Copyright (C) 1995-97 Simon G. Vogl
Copyright (C) 1998-99 Frodo Looijaard <frodol@dds.nl>
@@ -42,7 +42,7 @@ static struct i2c_driver i2cdev_driver;
struct i2c_dev {
struct list_head list;
struct i2c_adapter *adap;
- struct class_device *class_dev;
+ struct device *dev;
};
#define I2C_MINORS 256
@@ -90,17 +90,19 @@ static void return_i2c_dev(struct i2c_dev *i2c_dev)
spin_lock(&i2c_dev_list_lock);
list_del(&i2c_dev->list);
spin_unlock(&i2c_dev_list_lock);
+ kfree(i2c_dev);
}
-static ssize_t show_adapter_name(struct class_device *class_dev, char *buf)
+static ssize_t show_adapter_name(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct i2c_dev *i2c_dev = i2c_dev_get_by_minor(MINOR(class_dev->devt));
+ struct i2c_dev *i2c_dev = i2c_dev_get_by_minor(MINOR(dev->devt));
if (!i2c_dev)
return -ENODEV;
return sprintf(buf, "%s\n", i2c_dev->adap->name);
}
-static CLASS_DEVICE_ATTR(name, S_IRUGO, show_adapter_name, NULL);
+static DEVICE_ATTR(name, S_IRUGO, show_adapter_name, NULL);
static ssize_t i2cdev_read (struct file *file, char __user *buf, size_t count,
loff_t *offset)
@@ -118,7 +120,7 @@ static ssize_t i2cdev_read (struct file *file, char __user *buf, size_t count,
return -ENOMEM;
pr_debug("i2c-dev: i2c-%d reading %zd bytes.\n",
- iminor(file->f_dentry->d_inode), count);
+ iminor(file->f_path.dentry->d_inode), count);
ret = i2c_master_recv(client,tmp,count);
if (ret >= 0)
@@ -146,7 +148,7 @@ static ssize_t i2cdev_write (struct file *file, const char __user *buf, size_t c
}
pr_debug("i2c-dev: i2c-%d writing %zd bytes.\n",
- iminor(file->f_dentry->d_inode), count);
+ iminor(file->f_path.dentry->d_inode), count);
ret = i2c_master_send(client,tmp,count);
kfree(tmp);
@@ -171,7 +173,7 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
switch ( cmd ) {
case I2C_SLAVE:
case I2C_SLAVE_FORCE:
- if ((arg > 0x3ff) ||
+ if ((arg > 0x3ff) ||
(((client->flags & I2C_M_TEN) == 0) && arg > 0x7f))
return -EINVAL;
if ((cmd == I2C_SLAVE) && i2c_check_addr(client->adapter,arg))
@@ -192,12 +194,11 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
return 0;
case I2C_FUNCS:
funcs = i2c_get_functionality(client->adapter);
- return (copy_to_user((unsigned long __user *)arg, &funcs,
- sizeof(unsigned long)))?-EFAULT:0;
+ return put_user(funcs, (unsigned long __user *)arg);
case I2C_RDWR:
- if (copy_from_user(&rdwr_arg,
- (struct i2c_rdwr_ioctl_data __user *)arg,
+ if (copy_from_user(&rdwr_arg,
+ (struct i2c_rdwr_ioctl_data __user *)arg,
sizeof(rdwr_arg)))
return -EFAULT;
@@ -205,9 +206,9 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
* be sent at once */
if (rdwr_arg.nmsgs > I2C_RDRW_IOCTL_MAX_MSGS)
return -EINVAL;
-
+
rdwr_pa = (struct i2c_msg *)
- kmalloc(rdwr_arg.nmsgs * sizeof(struct i2c_msg),
+ kmalloc(rdwr_arg.nmsgs * sizeof(struct i2c_msg),
GFP_KERNEL);
if (rdwr_pa == NULL) return -ENOMEM;
@@ -277,9 +278,9 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
(struct i2c_smbus_ioctl_data __user *) arg,
sizeof(struct i2c_smbus_ioctl_data)))
return -EFAULT;
- if ((data_arg.size != I2C_SMBUS_BYTE) &&
+ if ((data_arg.size != I2C_SMBUS_BYTE) &&
(data_arg.size != I2C_SMBUS_QUICK) &&
- (data_arg.size != I2C_SMBUS_BYTE_DATA) &&
+ (data_arg.size != I2C_SMBUS_BYTE_DATA) &&
(data_arg.size != I2C_SMBUS_WORD_DATA) &&
(data_arg.size != I2C_SMBUS_PROC_CALL) &&
(data_arg.size != I2C_SMBUS_BLOCK_DATA) &&
@@ -290,11 +291,11 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
data_arg.size);
return -EINVAL;
}
- /* Note that I2C_SMBUS_READ and I2C_SMBUS_WRITE are 0 and 1,
+ /* 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) &&
+ if ((data_arg.read_write != I2C_SMBUS_READ) &&
(data_arg.read_write != I2C_SMBUS_WRITE)) {
- dev_dbg(&client->adapter->dev,
+ dev_dbg(&client->adapter->dev,
"read_write out of range (%x) in ioctl I2C_SMBUS.\n",
data_arg.read_write);
return -EINVAL;
@@ -303,7 +304,7 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
/* Note that command values are always valid! */
if ((data_arg.size == I2C_SMBUS_QUICK) ||
- ((data_arg.size == I2C_SMBUS_BYTE) &&
+ ((data_arg.size == I2C_SMBUS_BYTE) &&
(data_arg.read_write == I2C_SMBUS_WRITE)))
/* These are special: we do not use data */
return i2c_smbus_xfer(client->adapter, client->addr,
@@ -321,14 +322,14 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
if ((data_arg.size == I2C_SMBUS_BYTE_DATA) ||
(data_arg.size == I2C_SMBUS_BYTE))
datasize = sizeof(data_arg.data->byte);
- else if ((data_arg.size == I2C_SMBUS_WORD_DATA) ||
+ else if ((data_arg.size == I2C_SMBUS_WORD_DATA) ||
(data_arg.size == I2C_SMBUS_PROC_CALL))
datasize = sizeof(data_arg.data->word);
else /* size == smbus block, i2c block, or block proc. call */
datasize = sizeof(data_arg.data->block);
- if ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
- (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
+ if ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
+ (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
(data_arg.read_write == I2C_SMBUS_WRITE)) {
if (copy_from_user(&temp, data_arg.data, datasize))
return -EFAULT;
@@ -336,8 +337,8 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
res = i2c_smbus_xfer(client->adapter,client->addr,client->flags,
data_arg.read_write,
data_arg.command,data_arg.size,&temp);
- if (! res && ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
- (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
+ if (! res && ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
+ (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
(data_arg.read_write == I2C_SMBUS_READ))) {
if (copy_to_user(data_arg.data, &temp, datasize))
return -EFAULT;
@@ -413,15 +414,14 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
return PTR_ERR(i2c_dev);
/* register this i2c device with the driver core */
- i2c_dev->class_dev = class_device_create(i2c_dev_class, NULL,
- MKDEV(I2C_MAJOR, adap->nr),
- &adap->dev, "i2c-%d",
- adap->nr);
- if (!i2c_dev->class_dev) {
- res = -ENODEV;
+ i2c_dev->dev = device_create(i2c_dev_class, &adap->dev,
+ MKDEV(I2C_MAJOR, adap->nr),
+ "i2c-%d", adap->nr);
+ if (IS_ERR(i2c_dev->dev)) {
+ res = PTR_ERR(i2c_dev->dev);
goto error;
}
- res = class_device_create_file(i2c_dev->class_dev, &class_device_attr_name);
+ res = device_create_file(i2c_dev->dev, &dev_attr_name);
if (res)
goto error_destroy;
@@ -429,10 +429,9 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
adap->name, adap->nr);
return 0;
error_destroy:
- class_device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
+ device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
error:
return_i2c_dev(i2c_dev);
- kfree(i2c_dev);
return res;
}
@@ -444,10 +443,9 @@ static int i2cdev_detach_adapter(struct i2c_adapter *adap)
if (!i2c_dev) /* attach_adapter must have failed */
return 0;
- class_device_remove_file(i2c_dev->class_dev, &class_device_attr_name);
+ device_remove_file(i2c_dev->dev, &dev_attr_name);
return_i2c_dev(i2c_dev);
- class_device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
- kfree(i2c_dev);
+ device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
pr_debug("i2c-dev: adapter [%s] unregistered\n", adap->name);
return 0;
generated by cgit (git 2.34.1) at 2024-07-05 02:09:34 +0000