]> git.kernelconcepts.de Git - karo-tx-linux.git/blob - drivers/macintosh/macio_sysfs.c
Merge branch 'work.read_write' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[karo-tx-linux.git] / drivers / macintosh / macio_sysfs.c
1 #include <linux/kernel.h>
2 #include <linux/stat.h>
3 #include <asm/macio.h>
4
5
6 #define macio_config_of_attr(field, format_string)                      \
7 static ssize_t                                                          \
8 field##_show (struct device *dev, struct device_attribute *attr,        \
9               char *buf)                                                \
10 {                                                                       \
11         struct macio_dev *mdev = to_macio_device (dev);                 \
12         return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \
13 }                                                                       \
14 static DEVICE_ATTR_RO(field);
15
16 static ssize_t
17 compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
18 {
19         struct platform_device *of;
20         const char *compat;
21         int cplen;
22         int length = 0;
23
24         of = &to_macio_device (dev)->ofdev;
25         compat = of_get_property(of->dev.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 static DEVICE_ATTR_RO(compatible);
42
43 static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
44                               char *buf)
45 {
46         return of_device_modalias(dev, buf, PAGE_SIZE);
47 }
48
49 static ssize_t devspec_show(struct device *dev,
50                                 struct device_attribute *attr, char *buf)
51 {
52         struct platform_device *ofdev;
53
54         ofdev = to_platform_device(dev);
55         return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name);
56 }
57 static DEVICE_ATTR_RO(modalias);
58 static DEVICE_ATTR_RO(devspec);
59
60 macio_config_of_attr (name, "%s\n");
61 macio_config_of_attr (type, "%s\n");
62
63 static struct attribute *macio_dev_attrs[] = {
64         &dev_attr_name.attr,
65         &dev_attr_type.attr,
66         &dev_attr_compatible.attr,
67         &dev_attr_modalias.attr,
68         &dev_attr_devspec.attr,
69         NULL,
70 };
71
72 static const struct attribute_group macio_dev_group = {
73         .attrs = macio_dev_attrs,
74 };
75
76 const struct attribute_group *macio_dev_groups[] = {
77         &macio_dev_group,
78         NULL,
79 };