OpenCloudOS-Kernel/drivers/macintosh/macio_sysfs.c

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#include <linux/kernel.h>
#include <linux/stat.h>
#include <asm/macio.h>
#define macio_config_of_attr(field, format_string) \
static ssize_t \
field##_show (struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
struct macio_dev *mdev = to_macio_device (dev); \
return sprintf (buf, format_string, mdev->ofdev.node->field); \
}
static ssize_t
compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
{
struct of_device *of;
const char *compat;
int cplen;
int length = 0;
of = &to_macio_device (dev)->ofdev;
compat = get_property(of->node, "compatible", &cplen);
if (!compat) {
*buf = '\0';
return 0;
}
while (cplen > 0) {
int l;
length += sprintf (buf, "%s\n", compat);
buf += length;
l = strlen (compat) + 1;
compat += l;
cplen -= l;
}
return length;
}
static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
struct of_device *of;
const char *compat;
int cplen;
int length;
of = &to_macio_device (dev)->ofdev;
compat = get_property(of->node, "compatible", &cplen);
if (!compat) compat = "", cplen = 1;
length = sprintf (buf, "of:N%sT%s", of->node->name, of->node->type);
buf += length;
while (cplen > 0) {
int l;
length += sprintf (buf, "C%s", compat);
buf += length;
l = strlen (compat) + 1;
compat += l;
cplen -= l;
}
return length;
}
macio_config_of_attr (name, "%s\n");
macio_config_of_attr (type, "%s\n");
struct device_attribute macio_dev_attrs[] = {
__ATTR_RO(name),
__ATTR_RO(type),
__ATTR_RO(compatible),
__ATTR_RO(modalias),
__ATTR_NULL
};