drivers/macintosh/windfarm_ad7417_sensor.c

File Facts

System

Linux kernel

Corpus path

drivers/macintosh/windfarm_ad7417_sensor.c

Extension

.c

Size

7833 bytes

Lines

351

Domain

Driver Families

Bucket

drivers/macintosh

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/types.h
• linux/errno.h
• linux/kernel.h
• linux/delay.h
• linux/slab.h
• linux/init.h
• linux/wait.h
• linux/i2c.h
• asm/machdep.h
• asm/io.h
• asm/sections.h
• windfarm.h
• windfarm_mpu.h

Detected Declarations

• struct wf_ad7417_priv
• function wf_ad7417_temp_get
• function converters
• function wf_ad7417_adc_get
• function wf_ad7417_release
• function wf_ad7417_sensor_release
• function wf_ad7417_add_sensor
• function wf_ad7417_init_chip
• function wf_ad7417_probe
• function wf_ad7417_remove
• function wf_ad7417_init
• function wf_ad7417_exit
• module init wf_ad7417_init

Annotated Snippet

module_init(wf_ad7417_init);
module_exit(wf_ad7417_exit);

MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
MODULE_DESCRIPTION("ad7417 sensor driver for PowerMacs");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/types.h`, `linux/errno.h`, `linux/kernel.h`, `linux/delay.h`, `linux/slab.h`, `linux/init.h`, `linux/wait.h`, `linux/i2c.h`.
• Detected declarations: `struct wf_ad7417_priv`, `function wf_ad7417_temp_get`, `function converters`, `function wf_ad7417_adc_get`, `function wf_ad7417_release`, `function wf_ad7417_sensor_release`, `function wf_ad7417_add_sensor`, `function wf_ad7417_init_chip`, `function wf_ad7417_probe`, `function wf_ad7417_remove`.
• Atlas domain: Driver Families / drivers/macintosh.
• 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.