drivers/acpi/acpi_pnp.c
Source file repositories/reference/linux-study-clean/drivers/acpi/acpi_pnp.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/acpi/acpi_pnp.c- Extension
.c- Size
- 13171 bytes
- Lines
- 364
- Domain
- Driver Families
- Bucket
- drivers/acpi
- Inferred role
- Driver Families: exported/initcall integration point
- Status
- integration 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.
- 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.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/acpi.hlinux/module.hlinux/ctype.hinternal.h
Detected Declarations
function matching_idfunction acpi_pnp_matchfunction acpi_pnp_attachfunction acpi_is_pnp_devicefunction acpi_pnp_initexport acpi_is_pnp_device
Annotated Snippet
if (matching_id(idstr, (char *)devid->id)) {
if (matchid)
*matchid = devid;
return true;
}
return false;
}
static int acpi_pnp_attach(struct acpi_device *adev,
const struct acpi_device_id *id)
{
return true;
}
static struct acpi_scan_handler acpi_pnp_handler = {
.ids = acpi_pnp_device_ids,
.match = acpi_pnp_match,
.attach = acpi_pnp_attach,
};
bool acpi_is_pnp_device(struct acpi_device *adev)
{
return adev->handler == &acpi_pnp_handler;
}
EXPORT_SYMBOL_GPL(acpi_is_pnp_device);
void __init acpi_pnp_init(void)
{
acpi_scan_add_handler(&acpi_pnp_handler);
}
Annotation
- Immediate include surface: `linux/acpi.h`, `linux/module.h`, `linux/ctype.h`, `internal.h`.
- Detected declarations: `function matching_id`, `function acpi_pnp_match`, `function acpi_pnp_attach`, `function acpi_is_pnp_device`, `function acpi_pnp_init`, `export acpi_is_pnp_device`.
- Atlas domain: Driver Families / drivers/acpi.
- Implementation status: integration implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.