drivers/char/tpm/tpm-interface.c

File Facts

System

Linux kernel

Corpus path

drivers/char/tpm/tpm-interface.c

Extension

.c

Size

13312 bytes

Lines

577

Domain

Driver Families

Bucket

drivers/char

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/poll.h
• linux/slab.h
• linux/mutex.h
• linux/spinlock.h
• linux/suspend.h
• linux/freezer.h
• linux/tpm_eventlog.h
• tpm.h

Detected Declarations

• function tpm_calc_ordinal_duration
• function tpm_chip_cancel
• function tpm_chip_status
• function tpm_chip_req_canceled
• function tpm_transmit_completed
• function tpm_try_transmit
• function send
• function tpm_try_transmit
• function tpm_transmit_cmd
• function tpm_get_timeouts
• function errors
• function tpm_pcr_read
• function tpm_pcr_extend
• function tpm_auto_startup
• function tpm_pm_suspend
• function tpm_pm_resume
• function tpm_get_random
• function tpm_init
• function tpm_exit
• module init tpm_init
• export tpm_calc_ordinal_duration
• export tpm_transmit_cmd
• export tpm_get_timeouts
• export tpm_is_tpm2
• export tpm_pcr_read
• export tpm_pcr_extend
• export tpm_pm_suspend
• export tpm_pm_resume
• export tpm_get_random

Annotated Snippet

subsys_initcall(tpm_init);
module_exit(tpm_exit);

MODULE_AUTHOR("Leendert van Doorn <leendert@watson.ibm.com>");
MODULE_DESCRIPTION("TPM Driver");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/poll.h`, `linux/slab.h`, `linux/mutex.h`, `linux/spinlock.h`, `linux/suspend.h`, `linux/freezer.h`, `linux/tpm_eventlog.h`, `tpm.h`.
• Detected declarations: `function tpm_calc_ordinal_duration`, `function tpm_chip_cancel`, `function tpm_chip_status`, `function tpm_chip_req_canceled`, `function tpm_transmit_completed`, `function tpm_try_transmit`, `function send`, `function tpm_try_transmit`, `function tpm_transmit_cmd`, `function tpm_get_timeouts`.
• Atlas domain: Driver Families / drivers/char.
• 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.