43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
|
#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
|
||
|
|
};
|