1/*
2 * File Attributes for DIO Devices
3 *
4 * Copyright (C) 2004 Jochen Friedrich
5 *
6 * Loosely based on drivers/pci/pci-sysfs.c and drivers/zorro/zorro-sysfs.c
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file COPYING in the main directory of this archive
10 * for more details.
11 */
12
13
14#include <linux/kernel.h>
15#include <linux/dio.h>
16#include <linux/stat.h>
17
18/* show configuration fields */
19
20static ssize_t dio_show_id(struct device *dev, struct device_attribute *attr, char *buf)
21{
22 struct dio_dev *d;
23
24 d = to_dio_dev(dev);
25 return sprintf(buf, fmt: "0x%02x\n", (d->id & 0xff));
26}
27static DEVICE_ATTR(id, S_IRUGO, dio_show_id, NULL);
28
29static ssize_t dio_show_ipl(struct device *dev, struct device_attribute *attr, char *buf)
30{
31 struct dio_dev *d;
32
33 d = to_dio_dev(dev);
34 return sprintf(buf, fmt: "0x%02x\n", d->ipl);
35}
36static DEVICE_ATTR(ipl, S_IRUGO, dio_show_ipl, NULL);
37
38static ssize_t dio_show_secid(struct device *dev, struct device_attribute *attr, char *buf)
39{
40 struct dio_dev *d;
41
42 d = to_dio_dev(dev);
43 return sprintf(buf, fmt: "0x%02x\n", ((d->id >> 8)& 0xff));
44}
45static DEVICE_ATTR(secid, S_IRUGO, dio_show_secid, NULL);
46
47static ssize_t dio_show_name(struct device *dev, struct device_attribute *attr, char *buf)
48{
49 struct dio_dev *d;
50
51 d = to_dio_dev(dev);
52 return sprintf(buf, fmt: "%s\n", d->name);
53}
54static DEVICE_ATTR(name, S_IRUGO, dio_show_name, NULL);
55
56static ssize_t dio_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
57{
58 struct dio_dev *d = to_dio_dev(dev);
59
60 return sprintf(buf, fmt: "0x%08lx 0x%08lx 0x%08lx\n",
61 (unsigned long)dio_resource_start(d),
62 (unsigned long)dio_resource_end(d),
63 dio_resource_flags(d));
64}
65static DEVICE_ATTR(resource, S_IRUGO, dio_show_resource, NULL);
66
67int dio_create_sysfs_dev_files(struct dio_dev *d)
68{
69 struct device *dev = &d->dev;
70 int error;
71
72 /* current configuration's attributes */
73 if ((error = device_create_file(device: dev, entry: &dev_attr_id)) ||
74 (error = device_create_file(device: dev, entry: &dev_attr_ipl)) ||
75 (error = device_create_file(device: dev, entry: &dev_attr_secid)) ||
76 (error = device_create_file(device: dev, entry: &dev_attr_name)) ||
77 (error = device_create_file(device: dev, entry: &dev_attr_resource)))
78 return error;
79
80 return 0;
81}
82
83

source code of linux/drivers/dio/dio-sysfs.c