/* The I2C_RDWR ioctl code is written by Kolja Waschk <waschk@telos.de> */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/cdev.h>
#include <linux/compat.h>
#include <linux/device.h>
struct i2c_dev *i2c_dev;
if (adap->nr >= I2C_MINORS) {
- printk(KERN_ERR "i2c-dev: Out of device minors (%d)\n",
- adap->nr);
+ pr_err("Out of device minors (%d)\n", adap->nr);
return ERR_PTR(-ENODEV);
}
if (!i2c_dev)
return -ENODEV;
- return sprintf(buf, "%s\n", i2c_dev->adap->name);
+ return sysfs_emit(buf, "%s\n", i2c_dev->adap->name);
}
static DEVICE_ATTR_RO(name);
if (tmp == NULL)
return -ENOMEM;
- pr_debug("i2c-dev: i2c-%d reading %zu bytes.\n",
- iminor(file_inode(file)), count);
+ pr_debug("i2c-%d reading %zu bytes.\n", iminor(file_inode(file)), count);
ret = i2c_master_recv(client, tmp, count);
if (ret >= 0)
if (IS_ERR(tmp))
return PTR_ERR(tmp);
- pr_debug("i2c-dev: i2c-%d writing %zu bytes.\n",
- iminor(file_inode(file)), count);
+ pr_debug("i2c-%d writing %zu bytes.\n", iminor(file_inode(file)), count);
ret = i2c_master_send(client, tmp, count);
kfree(tmp);
return res;
}
- pr_debug("i2c-dev: adapter [%s] registered as minor %d\n",
- adap->name, adap->nr);
+ pr_debug("adapter [%s] registered as minor %d\n", adap->name, adap->nr);
return 0;
}
put_i2c_dev(i2c_dev, true);
- pr_debug("i2c-dev: adapter [%s] unregistered\n", adap->name);
+ pr_debug("adapter [%s] unregistered\n", adap->name);
return 0;
}
{
int res;
- printk(KERN_INFO "i2c /dev entries driver\n");
+ pr_info("i2c /dev entries driver\n");
res = register_chrdev_region(MKDEV(I2C_MAJOR, 0), I2C_MINORS, "i2c");
if (res)
out_unreg_chrdev:
unregister_chrdev_region(MKDEV(I2C_MAJOR, 0), I2C_MINORS);
out:
- printk(KERN_ERR "%s: Driver Initialisation failed\n", __FILE__);
+ pr_err("Driver Initialisation failed\n");
return res;
}