Logo Search packages:      
Sourcecode: alsa-driver version File versions

sysfs.c

#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/stat.h>
/* FIX UP */
#include "soundbus.h"

#define soundbus_config_of_attr(field, format_string)             \
static ssize_t                                              \
field##_show (struct device *dev, struct device_attribute *attr,  \
              char *buf)                                    \
{                                                     \
      struct soundbus_dev *mdev = to_soundbus_device (dev);       \
      return sprintf (buf, format_string, mdev->ofdev.node->field);     \
}

static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
                       char *buf)
{
      struct soundbus_dev *sdev = to_soundbus_device(dev);
      struct of_device *of = &sdev->ofdev;
      int length;

      if (*sdev->modalias) {
            strlcpy(buf, sdev->modalias, sizeof(sdev->modalias) + 1);
            strcat(buf, "\n");
            length = strlen(buf);
      } else {
            length = sprintf(buf, "of:N%sT%s\n",
                         of->node->name, of->node->type);
      }

      return length;
}

soundbus_config_of_attr (name, "%s\n");
soundbus_config_of_attr (type, "%s\n");

struct device_attribute soundbus_dev_attrs[] = {
      __ATTR_RO(name),
      __ATTR_RO(type),
      __ATTR_RO(modalias),
      __ATTR_NULL
};

Generated by  Doxygen 1.6.0   Back to index