brintos

brintos / linux-shallow public Read only

0
0
Text · 2.2 KiB · ee1a3b5 Raw
83 lines · c
1/*2 *  File Attributes for DIO Devices3 *4 *  Copyright (C) 2004 Jochen Friedrich5 *6 *  Loosely based on drivers/pci/pci-sysfs.c and drivers/zorro/zorro-sysfs.c7 *8 *  This file is subject to the terms and conditions of the GNU General Public9 *  License.  See the file COPYING in the main directory of this archive10 *  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, "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, "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, "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, "%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, "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(dev, &dev_attr_id)) ||74	    (error = device_create_file(dev, &dev_attr_ipl)) ||75	    (error = device_create_file(dev, &dev_attr_secid)) ||76	    (error = device_create_file(dev, &dev_attr_name)) ||77	    (error = device_create_file(dev, &dev_attr_resource)))78		return error;79 80	return 0;81}82 83