diff options
Diffstat (limited to 'drivers/w1/w1_smem.c')
| -rw-r--r-- | drivers/w1/w1_smem.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/drivers/w1/w1_smem.c b/drivers/w1/w1_smem.c deleted file mode 100644 index 70d2d469963..00000000000 --- a/drivers/w1/w1_smem.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - * w1_smem.c - * - * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru> - * - * - * This program is free software; you can redistribute it and/or modify - * it under the smems of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <asm/types.h> - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/device.h> -#include <linux/types.h> - -#include "w1.h" -#include "w1_io.h" -#include "w1_int.h" -#include "w1_family.h" - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>"); -MODULE_DESCRIPTION("Driver for 1-wire Dallas network protocol, 64bit memory family."); - -static ssize_t w1_smem_read_name(struct device *, struct device_attribute *attr, char *); -static ssize_t w1_smem_read_bin(struct kobject *, char *, loff_t, size_t); - -static struct w1_family_ops w1_smem_fops = { - .rname = &w1_smem_read_name, - .rbin = &w1_smem_read_bin, -}; - -static ssize_t w1_smem_read_name(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct w1_slave *sl = container_of(dev, struct w1_slave, dev); - - return sprintf(buf, "%s\n", sl->name); -} - -static ssize_t w1_smem_read_bin(struct kobject *kobj, char *buf, loff_t off, size_t count) -{ - struct w1_slave *sl = container_of(container_of(kobj, struct device, kobj), - struct w1_slave, dev); - int i; - - atomic_inc(&sl->refcnt); - if (down_interruptible(&sl->master->mutex)) { - count = 0; - goto out_dec; - } - - if (off > W1_SLAVE_DATA_SIZE) { - count = 0; - goto out; - } - if (off + count > W1_SLAVE_DATA_SIZE) { - count = 0; - goto out; - } - for (i = 0; i < 8; ++i) - count += sprintf(buf + count, "%02x ", ((u8 *)&sl->reg_num)[i]); - count += sprintf(buf + count, "\n"); - -out: - up(&sl->master->mutex); -out_dec: - atomic_dec(&sl->refcnt); - - return count; -} - -static struct w1_family w1_smem_family_01 = { - .fid = W1_FAMILY_SMEM_01, - .fops = &w1_smem_fops, -}; - -static struct w1_family w1_smem_family_81 = { - .fid = W1_FAMILY_SMEM_81, - .fops = &w1_smem_fops, -}; - -static int __init w1_smem_init(void) -{ - int err; - - err = w1_register_family(&w1_smem_family_01); - if (err) - return err; - - err = w1_register_family(&w1_smem_family_81); - if (err) { - w1_unregister_family(&w1_smem_family_01); - return err; - } - - return 0; -} - -static void __exit w1_smem_fini(void) -{ - w1_unregister_family(&w1_smem_family_01); - w1_unregister_family(&w1_smem_family_81); -} - -module_init(w1_smem_init); -module_exit(w1_smem_fini); |
