diff options
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index f0d52e1a6e07..67cec9ec0cd0 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -190,6 +190,22 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, struct device_attribute dev_attr_##_name = __ATTR_RW_MODE(_name, 0600) /** + * DEVICE_ATTR_RW_NAMED - Define a read-write device attribute with a sysfs name + * that differs from the function name. + * @_name: Attribute function preface + * @_attrname: Attribute name as it wil be exposed in the sysfs. + * + * Like DEVICE_ATTR_RW(), but allows for reusing names under separate paths in + * the same driver. + */ +#define DEVICE_ATTR_RW_NAMED(_name, _attrname) \ + struct device_attribute dev_attr_##_name = { \ + .attr = { .name = _attrname, .mode = 0644 }, \ + .show = _name##_show, \ + .store = _name##_store, \ + } + +/** * DEVICE_ATTR_RO - Define a readable device attribute. * @_name: Attribute name. * @@ -208,6 +224,21 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, struct device_attribute dev_attr_##_name = __ATTR_RO_MODE(_name, 0400) /** + * DEVICE_ATTR_RO_NAMED - Define a read-only device attribute with a sysfs name + * that differs from the function name. + * @_name: Attribute function preface + * @_attrname: Attribute name as it wil be exposed in the sysfs. + * + * Like DEVICE_ATTR_RO(), but allows for reusing names under separate paths in + * the same driver. + */ +#define DEVICE_ATTR_RO_NAMED(_name, _attrname) \ + struct device_attribute dev_attr_##_name = { \ + .attr = { .name = _attrname, .mode = 0444 }, \ + .show = _name##_show, \ + } + +/** * DEVICE_ATTR_WO - Define an admin-only writable device attribute. * @_name: Attribute name. * @@ -217,6 +248,21 @@ ssize_t device_show_string(struct device *dev, struct device_attribute *attr, struct device_attribute dev_attr_##_name = __ATTR_WO(_name) /** + * DEVICE_ATTR_WO_NAMED - Define a read-only device attribute with a sysfs name + * that differs from the function name. + * @_name: Attribute function preface + * @_attrname: Attribute name as it wil be exposed in the sysfs. + * + * Like DEVICE_ATTR_WO(), but allows for reusing names under separate paths in + * the same driver. + */ +#define DEVICE_ATTR_WO_NAMED(_name, _attrname) \ + struct device_attribute dev_attr_##_name = { \ + .attr = { .name = _attrname, .mode = 0200 }, \ + .store = _name##_store, \ + } + +/** * DEVICE_ULONG_ATTR - Define a device attribute backed by an unsigned long. * @_name: Attribute name. * @_mode: File mode. |