drivers/ptp/ptp_s390.c
Source file repositories/reference/linux-study-clean/drivers/ptp/ptp_s390.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/ptp/ptp_s390.c- Extension
.c- Size
- 3032 bytes
- Lines
- 130
- Domain
- Driver Families
- Bucket
- drivers/ptp
- 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
ptp_private.hlinux/time.hasm/stp.h
Detected Declarations
function ptp_s390_adjfinefunction ptp_s390_adjtimefunction eitod_to_timespec64function tod_to_timespec64function ptp_s390_stcke_gettimefunction ptp_s390_qpt_gettimefunction ptp_s390_settimefunction s390_arch_ptp_get_crosststampfunction ptp_s390_getcrosststampfunction ptp_s390_initfunction ptp_s390_exitmodule init ptp_s390_init
Annotated Snippet
module_init(ptp_s390_init);
module_exit(ptp_s390_exit);
MODULE_AUTHOR("Sven Schnelle <svens@linux.ibm.com>");
MODULE_DESCRIPTION("s390 Physical/STCKE Clock PtP Driver");
MODULE_LICENSE("GPL");Annotation
- Immediate include surface: `ptp_private.h`, `linux/time.h`, `asm/stp.h`.
- Detected declarations: `function ptp_s390_adjfine`, `function ptp_s390_adjtime`, `function eitod_to_timespec64`, `function tod_to_timespec64`, `function ptp_s390_stcke_gettime`, `function ptp_s390_qpt_gettime`, `function ptp_s390_settime`, `function s390_arch_ptp_get_crosststamp`, `function ptp_s390_getcrosststamp`, `function ptp_s390_init`.
- Atlas domain: Driver Families / drivers/ptp.
- 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.