diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/core.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index abea76c36a4b..c8ae1f6b01b9 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -171,6 +171,27 @@ ssize_t device_show_int(struct device *dev, } EXPORT_SYMBOL_GPL(device_show_int); +ssize_t device_store_bool(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) +{ + struct dev_ext_attribute *ea = to_ext_attr(attr); + + if (strtobool(buf, ea->var) < 0) + return -EINVAL; + + return size; +} +EXPORT_SYMBOL_GPL(device_store_bool); + +ssize_t device_show_bool(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct dev_ext_attribute *ea = to_ext_attr(attr); + + return snprintf(buf, PAGE_SIZE, "%d\n", *(bool *)(ea->var)); +} +EXPORT_SYMBOL_GPL(device_show_bool); + /** * device_release - free device structure. * @kobj: device's kobject. |