drivers/macintosh/windfarm_rm31.c

File Facts

System

Linux kernel

Corpus path

drivers/macintosh/windfarm_rm31.c

Extension

.c

Size

17920 bytes

Lines

736

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.
• 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/device.h
• linux/platform_device.h
• linux/reboot.h
• asm/smu.h
• windfarm.h
• windfarm_pid.h
• windfarm_mpu.h

Detected Declarations

• function cpu_max_all_fans
• function cpu_check_overtemp
• function read_one_cpu_vals
• function cpu_fans_tick
• function cpu_setup_pid
• function backside_fan_tick
• function backside_setup_pid
• function slots_fan_tick
• function slots_setup_pid
• function set_fail_state
• function rm31_tick
• function rm31_new_control
• function rm31_new_sensor
• function rm31_wf_notify
• function wf_rm31_probe
• function wf_rm31_remove
• function wf_rm31_init
• function wf_rm31_exit
• module init wf_rm31_init

Annotated Snippet

module_init(wf_rm31_init);
module_exit(wf_rm31_exit);

MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
MODULE_DESCRIPTION("Thermal control for Xserve G5");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:windfarm");

Annotation

• Immediate include surface: `linux/types.h`, `linux/errno.h`, `linux/kernel.h`, `linux/device.h`, `linux/platform_device.h`, `linux/reboot.h`, `asm/smu.h`, `windfarm.h`.
• Detected declarations: `function cpu_max_all_fans`, `function cpu_check_overtemp`, `function read_one_cpu_vals`, `function cpu_fans_tick`, `function cpu_setup_pid`, `function backside_fan_tick`, `function backside_setup_pid`, `function slots_fan_tick`, `function slots_setup_pid`, `function set_fail_state`.
• Atlas domain: Driver Families / drivers/macintosh.
• 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.