drivers/tty/serial/8250/8250_hp300.c

Source file repositories/reference/linux-study-clean/drivers/tty/serial/8250/8250_hp300.c

File Facts

System: Linux kernel
Corpus path: drivers/tty/serial/8250/8250_hp300.c
Extension: .c
Size: 7562 bytes
Lines: 325
Domain: Driver Families
Bucket: drivers/tty
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.
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/module.h
linux/init.h
linux/string.h
linux/kernel.h
linux/serial.h
linux/serial_8250.h
linux/delay.h
linux/dio.h
linux/console.h
linux/slab.h
asm/io.h
8250.h

Detected Declarations

struct hp300_port
function hp300_setup_serial_console
function hpdca_init_one
function hp300_8250_init
function hpdca_remove_one
function hp300_8250_exit
module init hp300_8250_init

Annotated Snippet

module_init(hp300_8250_init);
module_exit(hp300_8250_exit);
MODULE_DESCRIPTION("HP DCA/APCI serial driver");
MODULE_AUTHOR("Kars de Jong <jongk@linux-m68k.org>");
MODULE_LICENSE("GPL");

Annotation

Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/string.h`, `linux/kernel.h`, `linux/serial.h`, `linux/serial_8250.h`, `linux/delay.h`, `linux/dio.h`.
Detected declarations: `struct hp300_port`, `function hp300_setup_serial_console`, `function hpdca_init_one`, `function hp300_8250_init`, `function hpdca_remove_one`, `function hp300_8250_exit`, `module init hp300_8250_init`.
Atlas domain: Driver Families / drivers/tty.
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.