drivers/hwmon/ibmpex.c

File Facts

System

Linux kernel

Corpus path

drivers/hwmon/ibmpex.c

Extension

.c

Size

14318 bytes

Lines

595

Domain

Driver Families

Bucket

drivers/hwmon

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/ipmi.h
• linux/module.h
• linux/hwmon.h
• linux/hwmon-sysfs.h
• linux/jiffies.h
• linux/mutex.h
• linux/slab.h
• linux/err.h

Detected Declarations

• struct ibmpex_sensor_data
• struct ibmpex_bmc_data
• struct ibmpex_driver_data
• function Copyright
• function ibmpex_send_message
• function ibmpex_ver_check
• function ibmpex_query_sensor_count
• function ibmpex_query_sensor_name
• function ibmpex_query_sensor_data
• function ibmpex_reset_high_low_data
• function ibmpex_update_device
• function ibmpex_show_sensor
• function ibmpex_high_low_store
• function is_power_sensor
• function is_temp_sensor
• function power_sensor_multiplier
• function create_sensor
• function ibmpex_find_sensors
• function ibmpex_register_bmc
• function ibmpex_bmc_delete
• function ibmpex_bmc_gone
• function ibmpex_msg_handler
• function ibmpex_init
• function ibmpex_exit
• module init ibmpex_init

Annotated Snippet

module_init(ibmpex_init);
module_exit(ibmpex_exit);

MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3350-*");
MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3550-*");
MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3650-*");
MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3655-*");
MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3755-*");

Annotation

• Immediate include surface: `linux/ipmi.h`, `linux/module.h`, `linux/hwmon.h`, `linux/hwmon-sysfs.h`, `linux/jiffies.h`, `linux/mutex.h`, `linux/slab.h`, `linux/err.h`.
• Detected declarations: `struct ibmpex_sensor_data`, `struct ibmpex_bmc_data`, `struct ibmpex_driver_data`, `function Copyright`, `function ibmpex_send_message`, `function ibmpex_ver_check`, `function ibmpex_query_sensor_count`, `function ibmpex_query_sensor_name`, `function ibmpex_query_sensor_data`, `function ibmpex_reset_high_low_data`.
• Atlas domain: Driver Families / drivers/hwmon.
• 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.