drivers/acpi/x86/apple.c

Source file repositories/reference/linux-study-clean/drivers/acpi/x86/apple.c

File Facts

System
Linux kernel
Corpus path
drivers/acpi/x86/apple.c
Extension
.c
Size
4603 bytes
Lines
149
Domain
Driver Families
Bucket
drivers/acpi
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 (val->type == ACPI_TYPE_INTEGER) {
			newprops[v].integer.value = val->integer.value;
		} else if (val->type == ACPI_TYPE_STRING) {
			newprops[v].string.length = val->string.length;
			newprops[v].string.pointer = free_space;
			memcpy(free_space, val->string.pointer,
			       val->string.length);
			free_space += val->string.length + 1;
		} else {
			newprops[v].buffer.length = val->buffer.length;
			newprops[v].buffer.pointer = free_space;
			memcpy(free_space, val->buffer.pointer,
			       val->buffer.length);
			free_space += val->buffer.length;
		}
		j++; /* count valid properties */
	}
	WARN_ON(free_space != (void *)newprops + newsize);

	adev->data.pointer = newprops;
	acpi_data_add_props(&adev->data, &apple_prp_guid, newprops);

out_free:
	ACPI_FREE(props);
	bitmap_free(valid);
}

Annotation

Implementation Notes