diff options
| -rw-r--r-- | drivers/w1/w1.c | 73 | ||||
| -rw-r--r-- | drivers/w1/w1_family.h | 1 |
2 files changed, 42 insertions, 32 deletions
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index 52b6c2f..22013ca 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -124,9 +124,9 @@ ATTRIBUTE_GROUPS(w1_slave); /* Default family */ -static ssize_t w1_default_write(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t off, size_t count) +static ssize_t rw_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, loff_t off, + size_t count) { struct w1_slave *sl = kobj_to_w1_slave(kobj); @@ -143,9 +143,9 @@ out_up: return count; } -static ssize_t w1_default_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t off, size_t count) +static ssize_t rw_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, loff_t off, + size_t count) { struct w1_slave *sl = kobj_to_w1_slave(kobj); @@ -155,29 +155,24 @@ static ssize_t w1_default_read(struct file *filp, struct kobject *kobj, return count; } -static struct bin_attribute w1_default_attr = { - .attr = { - .name = "rw", - .mode = S_IRUGO | S_IWUSR, - }, - .size = PAGE_SIZE, - .read = w1_default_read, - .write = w1_default_write, +static BIN_ATTR_RW(rw, PAGE_SIZE); + +static struct bin_attribute *w1_slave_bin_attrs[] = { + &bin_attr_rw, + NULL, }; -static int w1_default_add_slave(struct w1_slave *sl) -{ - return sysfs_create_bin_file(&sl->dev.kobj, &w1_default_attr); -} +static const struct attribute_group w1_slave_default_group = { + .bin_attrs = w1_slave_bin_attrs, +}; -static void w1_default_remove_slave(struct w1_slave *sl) -{ - sysfs_remove_bin_file(&sl->dev.kobj, &w1_default_attr); -} +static const struct attribute_group *w1_slave_default_groups[] = { + &w1_slave_default_group, + NULL, +}; static struct w1_family_ops w1_default_fops = { - .add_slave = w1_default_add_slave, - .remove_slave = w1_default_remove_slave, + .groups = w1_slave_default_groups, }; static struct w1_family w1_default_family = { @@ -600,6 +595,7 @@ static int w1_bus_notify(struct notifier_block *nb, unsigned long action, { struct device *dev = data; struct w1_slave *sl; + struct w1_family_ops *fops; int err; /* @@ -611,23 +607,36 @@ static int w1_bus_notify(struct notifier_block *nb, unsigned long action, return 0; sl = dev_to_w1_slave(dev); + fops = sl->family->fops; switch (action) { case BUS_NOTIFY_ADD_DEVICE: /* if the family driver needs to initialize something... */ - if (sl->family->fops && sl->family->fops->add_slave && - ((err = sl->family->fops->add_slave(sl)) < 0)) { - dev_err(&sl->dev, - "sysfs file creation for [%s] failed. err=%d\n", - dev_name(&sl->dev), err); - return err; + if (fops->add_slave) { + err = fops->add_slave(sl); + if (err < 0) { + dev_err(&sl->dev, + "add_slave() call failed. err=%d\n", + err); + return err; + } + } + if (fops->groups) { + err = sysfs_create_groups(&sl->dev.kobj, fops->groups); + if (err) { + dev_err(&sl->dev, + "sysfs group creation failed. err=%d\n", + err); + return err; + } } break; case BUS_NOTIFY_DEL_DEVICE: - /* Remove our sysfs files */ - if (sl->family->fops && sl->family->fops->remove_slave) + if (fops->remove_slave) sl->family->fops->remove_slave(sl); + if (fops->groups) + sysfs_remove_groups(&sl->dev.kobj, fops->groups); break; } return 0; diff --git a/drivers/w1/w1_family.h b/drivers/w1/w1_family.h index 625dd08..4ad0e81 100644 --- a/drivers/w1/w1_family.h +++ b/drivers/w1/w1_family.h @@ -52,6 +52,7 @@ struct w1_family_ops { int (* add_slave)(struct w1_slave *); void (* remove_slave)(struct w1_slave *); + const struct attribute_group **groups; }; struct w1_family |
