drivers/gpib/pc2/pc2_gpib.c

File Facts

System

Linux kernel

Corpus path

drivers/gpib/pc2/pc2_gpib.c

Extension

.c

Size

19271 bytes

Lines

686

Domain

Driver Families

Bucket

drivers/gpib

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/ioport.h
• linux/sched.h
• linux/module.h
• linux/slab.h
• linux/bitops.h
• asm/dma.h
• linux/dma-mapping.h
• linux/string.h
• linux/init.h
• nec7210.h
• gpibP.h

Detected Declarations

• struct pc2_priv
• function CLEAR_INTR_REG
• function pc2_interrupt
• function pc2a_interrupt
• function pc2_read
• function pc2_write
• function pc2_command
• function pc2_take_control
• function pc2_go_to_standby
• function pc2_request_system_control
• function pc2_interface_clear
• function pc2_remote_enable
• function pc2_enable_eos
• function pc2_disable_eos
• function pc2_update_status
• function pc2_primary_address
• function pc2_secondary_address
• function pc2_parallel_poll
• function pc2_parallel_poll_configure
• function pc2_parallel_poll_response
• function pc2_serial_poll_response
• function pc2_serial_poll_status
• function pc2_t1_delay
• function pc2_return_to_local
• function allocate_private
• function free_private
• function pc2_generic_attach
• function pc2_attach
• function pc2_detach
• function pc2a_common_attach
• function pc2a_attach
• function pc2a_cb7210_attach
• function pc2_2a_attach
• function pc2a_common_detach
• function pc2a_detach
• function pc2_2a_detach
• function pc2_init_module
• function pc2_exit_module
• module init pc2_init_module

Annotated Snippet

module_init(pc2_init_module);
module_exit(pc2_exit_module);

Annotation

• Immediate include surface: `linux/ioport.h`, `linux/sched.h`, `linux/module.h`, `linux/slab.h`, `linux/bitops.h`, `asm/dma.h`, `linux/dma-mapping.h`, `linux/string.h`.
• Detected declarations: `struct pc2_priv`, `function CLEAR_INTR_REG`, `function pc2_interrupt`, `function pc2a_interrupt`, `function pc2_read`, `function pc2_write`, `function pc2_command`, `function pc2_take_control`, `function pc2_go_to_standby`, `function pc2_request_system_control`.
• Atlas domain: Driver Families / drivers/gpib.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.