tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#include <linux/config.h>
2#include <linux/kernel.h>
3#include <linux/stat.h>
4#include <asm/macio.h>
5
6
7#define macio_config_of_attr(field, format_string) \
8static ssize_t \
9field##_show (struct device *dev, struct device_attribute *attr, \
10 char *buf) \
11{ \
12 struct macio_dev *mdev = to_macio_device (dev); \
13 return sprintf (buf, format_string, mdev->ofdev.node->field); \
14}
15
16static ssize_t
17compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
18{
19 struct of_device *of;
20 char *compat;
21 int cplen;
22 int length = 0;
23
24 of = &to_macio_device (dev)->ofdev;
25 compat = (char *) get_property(of->node, "compatible", &cplen);
26 if (!compat) {
27 *buf = '\0';
28 return 0;
29 }
30 while (cplen > 0) {
31 int l;
32 length += sprintf (buf, "%s\n", compat);
33 buf += length;
34 l = strlen (compat) + 1;
35 compat += l;
36 cplen -= l;
37 }
38
39 return length;
40}
41
42macio_config_of_attr (name, "%s\n");
43macio_config_of_attr (type, "%s\n");
44
45struct device_attribute macio_dev_attrs[] = {
46 __ATTR_RO(name),
47 __ATTR_RO(type),
48 __ATTR_RO(compatible),
49 __ATTR_NULL
50};