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path: root/drivers/w1/w1_smem.c
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Diffstat (limited to 'drivers/w1/w1_smem.c')
-rw-r--r--drivers/w1/w1_smem.c49
1 files changed, 0 insertions, 49 deletions
diff --git a/drivers/w1/w1_smem.c b/drivers/w1/w1_smem.c
index 70d2d469963c..e3209d0aca9b 100644
--- a/drivers/w1/w1_smem.c
+++ b/drivers/w1/w1_smem.c
@@ -36,61 +36,12 @@ MODULE_LICENSE("GPL");
36MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>"); 36MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
37MODULE_DESCRIPTION("Driver for 1-wire Dallas network protocol, 64bit memory family."); 37MODULE_DESCRIPTION("Driver for 1-wire Dallas network protocol, 64bit memory family.");
38 38
39static ssize_t w1_smem_read_name(struct device *, struct device_attribute *attr, char *);
40static ssize_t w1_smem_read_bin(struct kobject *, char *, loff_t, size_t);
41
42static struct w1_family_ops w1_smem_fops = {
43 .rname = &w1_smem_read_name,
44 .rbin = &w1_smem_read_bin,
45};
46
47static ssize_t w1_smem_read_name(struct device *dev, struct device_attribute *attr, char *buf)
48{
49 struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
50
51 return sprintf(buf, "%s\n", sl->name);
52}
53
54static ssize_t w1_smem_read_bin(struct kobject *kobj, char *buf, loff_t off, size_t count)
55{
56 struct w1_slave *sl = container_of(container_of(kobj, struct device, kobj),
57 struct w1_slave, dev);
58 int i;
59
60 atomic_inc(&sl->refcnt);
61 if (down_interruptible(&sl->master->mutex)) {
62 count = 0;
63 goto out_dec;
64 }
65
66 if (off > W1_SLAVE_DATA_SIZE) {
67 count = 0;
68 goto out;
69 }
70 if (off + count > W1_SLAVE_DATA_SIZE) {
71 count = 0;
72 goto out;
73 }
74 for (i = 0; i < 8; ++i)
75 count += sprintf(buf + count, "%02x ", ((u8 *)&sl->reg_num)[i]);
76 count += sprintf(buf + count, "\n");
77
78out:
79 up(&sl->master->mutex);
80out_dec:
81 atomic_dec(&sl->refcnt);
82
83 return count;
84}
85
86static struct w1_family w1_smem_family_01 = { 39static struct w1_family w1_smem_family_01 = {
87 .fid = W1_FAMILY_SMEM_01, 40 .fid = W1_FAMILY_SMEM_01,
88 .fops = &w1_smem_fops,
89}; 41};
90 42
91static struct w1_family w1_smem_family_81 = { 43static struct w1_family w1_smem_family_81 = {
92 .fid = W1_FAMILY_SMEM_81, 44 .fid = W1_FAMILY_SMEM_81,
93 .fops = &w1_smem_fops,
94}; 45};
95 46
96static int __init w1_smem_init(void) 47static int __init w1_smem_init(void)