drivers/crypto/atmel-i2c.c

File Facts

System

Linux kernel

Corpus path

drivers/crypto/atmel-i2c.c

Extension

.c

Size

11024 bytes

Lines

420

Domain

Driver Families

Bucket

drivers/crypto

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/bitrev.h
• linux/crc16.h
• linux/delay.h
• linux/device.h
• linux/err.h
• linux/errno.h
• linux/i2c.h
• linux/init.h
• linux/kernel.h
• linux/module.h
• linux/scatterlist.h
• linux/slab.h
• linux/workqueue.h
• atmel-i2c.h

Detected Declarations

• function atmel_i2c_checksum
• function atmel_i2c_init_read_config_cmd
• function atmel_i2c_init_read_otp_cmd
• function atmel_i2c_init_random_cmd
• function atmel_i2c_init_genkey_cmd
• function atmel_i2c_init_ecdh_cmd
• function atmel_i2c_status
• function atmel_i2c_wakeup
• function atmel_i2c_sleep
• function atmel_i2c_send_receive
• function atmel_i2c_work_handler
• function atmel_i2c_enqueue
• function atmel_i2c_flush_queue
• function atmel_i2c_wake_token_sz
• function device_sanity_check
• function atmel_i2c_probe
• function atmel_i2c_init
• function atmel_i2c_exit
• module init atmel_i2c_init
• export atmel_i2c_init_read_config_cmd
• export atmel_i2c_init_read_otp_cmd
• export atmel_i2c_init_random_cmd
• export atmel_i2c_init_genkey_cmd
• export atmel_i2c_init_ecdh_cmd
• export atmel_i2c_send_receive
• export atmel_i2c_enqueue
• export atmel_i2c_flush_queue
• export atmel_i2c_probe

Annotated Snippet

module_init(atmel_i2c_init);
module_exit(atmel_i2c_exit);

MODULE_AUTHOR("Tudor Ambarus");
MODULE_DESCRIPTION("Microchip / Atmel ECC (I2C) driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/bitrev.h`, `linux/crc16.h`, `linux/delay.h`, `linux/device.h`, `linux/err.h`, `linux/errno.h`, `linux/i2c.h`, `linux/init.h`.
• Detected declarations: `function atmel_i2c_checksum`, `function atmel_i2c_init_read_config_cmd`, `function atmel_i2c_init_read_otp_cmd`, `function atmel_i2c_init_random_cmd`, `function atmel_i2c_init_genkey_cmd`, `function atmel_i2c_init_ecdh_cmd`, `function atmel_i2c_status`, `function atmel_i2c_wakeup`, `function atmel_i2c_sleep`, `function atmel_i2c_send_receive`.
• Atlas domain: Driver Families / drivers/crypto.
• 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.