drivers/platform/x86/dell/dell-wmi-sysman/enum-attributes.c

Source file repositories/reference/linux-study-clean/drivers/platform/x86/dell/dell-wmi-sysman/enum-attributes.c

File Facts

System
Linux kernel
Corpus path
drivers/platform/x86/dell/dell-wmi-sysman/enum-attributes.c
Extension
.c
Size
7253 bytes
Lines
245
Domain
Driver Families
Bucket
drivers/platform
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (!strcasecmp(p, buf)) {
			ret = 0;
			break;
		}
	}

	kfree(tmp);
	return ret;
}

attribute_s_property_show(display_name_language_code, enumeration);
static struct kobj_attribute displ_langcode =
		__ATTR_RO(display_name_language_code);

attribute_s_property_show(display_name, enumeration);
static struct kobj_attribute displ_name =
		__ATTR_RO(display_name);

attribute_s_property_show(default_value, enumeration);
static struct kobj_attribute default_val =
		__ATTR_RO(default_value);

attribute_property_store(current_value, enumeration);
static struct kobj_attribute current_val =
		__ATTR_RW_MODE(current_value, 0600);

attribute_s_property_show(dell_modifier, enumeration);
static struct kobj_attribute modifier =
		__ATTR_RO(dell_modifier);

attribute_s_property_show(dell_value_modifier, enumeration);
static struct kobj_attribute value_modfr =
		__ATTR_RO(dell_value_modifier);

attribute_s_property_show(possible_values, enumeration);
static struct kobj_attribute poss_val =
		__ATTR_RO(possible_values);

static ssize_t type_show(struct kobject *kobj, struct kobj_attribute *attr,
			 char *buf)
{
	return sprintf(buf, "enumeration\n");
}
static struct kobj_attribute type =
		__ATTR_RO(type);

static struct attribute *enumeration_attrs[] = {
	&displ_langcode.attr,
	&displ_name.attr,
	&default_val.attr,
	&current_val.attr,
	&modifier.attr,
	&value_modfr.attr,
	&poss_val.attr,
	&type.attr,
	NULL,
};

static const struct attribute_group enumeration_attr_group = {
	.attrs = enumeration_attrs,
};

int alloc_enum_data(void)
{
	int ret = 0;

	wmi_priv.enumeration_instances_count =
		get_instance_count(DELL_WMI_BIOS_ENUMERATION_ATTRIBUTE_GUID);
	wmi_priv.enumeration_data = kzalloc_objs(struct enumeration_data,
						 wmi_priv.enumeration_instances_count);
	if (!wmi_priv.enumeration_data) {
		wmi_priv.enumeration_instances_count = 0;
		ret = -ENOMEM;
	}
	return ret;
}

/**
 * populate_enum_data() - Populate all properties of an instance under enumeration attribute
 * @enumeration_obj: ACPI object with enumeration data
 * @instance_id: The instance to enumerate
 * @attr_name_kobj: The parent kernel object
 * @enum_property_count: Total properties count under enumeration type
 */
int populate_enum_data(union acpi_object *enumeration_obj, int instance_id,
			struct kobject *attr_name_kobj, u32 enum_property_count)
{
	int i, next_obj, value_modifier_count, possible_values_count;

	wmi_priv.enumeration_data[instance_id].attr_name_kobj = attr_name_kobj;

Annotation

Implementation Notes