Eric Lee / smarc-ti-linux-kernel

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drivers/dio/dio-sysfs.c 2.2 KB
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1da177e4c   Linus Torvalds   Linux-2.6.12-rc2 
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  /*
   *  File Attributes for DIO Devices
   *
   *  Copyright (C) 2004 Jochen Friedrich
   *
   *  Loosely based on drivers/pci/pci-sysfs.c and drivers/zorro/zorro-sysfs.c
   *
   *  This file is subject to the terms and conditions of the GNU General Public
   *  License.  See the file COPYING in the main directory of this archive
   *  for more details.
   */
  
  
  #include <linux/kernel.h>
  #include <linux/dio.h>
  #include <linux/stat.h>
  
  /* show configuration fields */
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  static ssize_t dio_show_id(struct device *dev, struct device_attribute *attr, char *buf)
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  {
  	struct dio_dev *d;
  
  	d = to_dio_dev(dev);
  	return sprintf(buf, "0x%02x
  ", (d->id & 0xff));
  }
  static DEVICE_ATTR(id, S_IRUGO, dio_show_id, NULL);
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  static ssize_t dio_show_ipl(struct device *dev, struct device_attribute *attr, char *buf)
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  {
  	struct dio_dev *d;
  
  	d = to_dio_dev(dev);
  	return sprintf(buf, "0x%02x
  ", d->ipl);
  }
  static DEVICE_ATTR(ipl, S_IRUGO, dio_show_ipl, NULL);
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  static ssize_t dio_show_secid(struct device *dev, struct device_attribute *attr, char *buf)
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  {
  	struct dio_dev *d;
  
  	d = to_dio_dev(dev);
  	return sprintf(buf, "0x%02x
  ", ((d->id >> 8)& 0xff));
  }
  static DEVICE_ATTR(secid, S_IRUGO, dio_show_secid, NULL);
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  static ssize_t dio_show_name(struct device *dev, struct device_attribute *attr, char *buf)
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  {
  	struct dio_dev *d;
  
  	d = to_dio_dev(dev);
  	return sprintf(buf, "%s
  ", d->name);
  }
  static DEVICE_ATTR(name, S_IRUGO, dio_show_name, NULL);
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  static ssize_t dio_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
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  {
  	struct dio_dev *d = to_dio_dev(dev);
  
  	return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx
  ",
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  		       (unsigned long)dio_resource_start(d),
  		       (unsigned long)dio_resource_end(d),
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  		       dio_resource_flags(d));
  }
  static DEVICE_ATTR(resource, S_IRUGO, dio_show_resource, NULL);
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  int dio_create_sysfs_dev_files(struct dio_dev *d)
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  {
  	struct device *dev = &d->dev;
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  	int error;
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  	/* current configuration's attributes */
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  	if ((error = device_create_file(dev, &dev_attr_id)) ||
  	    (error = device_create_file(dev, &dev_attr_ipl)) ||
  	    (error = device_create_file(dev, &dev_attr_secid)) ||
  	    (error = device_create_file(dev, &dev_attr_name)) ||
  	    (error = device_create_file(dev, &dev_attr_resource)))
  		return error;
  
  	return 0;
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  }