drivers/rtc/class.c
Source file repositories/reference/linux-study-clean/drivers/rtc/class.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/rtc/class.c- Extension
.c- Size
- 12931 bytes
- Lines
- 492
- Domain
- Driver Families
- Bucket
- drivers/rtc
- 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.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/module.hlinux/of.hlinux/rtc.hlinux/kdev_t.hlinux/idr.hlinux/slab.hlinux/workqueue.hrtc-core.h
Detected Declarations
function rtc_device_releasefunction rtc_hctosysfunction rtc_suspendfunction rtc_resumefunction rtc_device_get_idfunction rtc_device_get_offsetfunction devm_rtc_unregister_devicefunction devm_rtc_release_devicefunction __devm_rtc_register_devicefunction rtc_device_registerfunction rtc_initmodule init rtc_initexport devm_rtc_allocate_deviceexport __devm_rtc_register_deviceexport devm_rtc_device_register
Annotated Snippet
subsys_initcall(rtc_init);Annotation
- Immediate include surface: `linux/module.h`, `linux/of.h`, `linux/rtc.h`, `linux/kdev_t.h`, `linux/idr.h`, `linux/slab.h`, `linux/workqueue.h`, `rtc-core.h`.
- Detected declarations: `function rtc_device_release`, `function rtc_hctosys`, `function rtc_suspend`, `function rtc_resume`, `function rtc_device_get_id`, `function rtc_device_get_offset`, `function devm_rtc_unregister_device`, `function devm_rtc_release_device`, `function __devm_rtc_register_device`, `function rtc_device_register`.
- Atlas domain: Driver Families / drivers/rtc.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
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.