drivers/tty/rpmsg_tty.c

File Facts

System

Linux kernel

Corpus path

drivers/tty/rpmsg_tty.c

Extension

.c

Size

7097 bytes

Lines

289

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.
• 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/module.h
• linux/rpmsg.h
• linux/slab.h
• linux/tty.h
• linux/tty_flip.h

Detected Declarations

• struct rpmsg_tty_port
• function rpmsg_tty_cb
• function rpmsg_tty_install
• function rpmsg_tty_cleanup
• function rpmsg_tty_open
• function rpmsg_tty_close
• function rpmsg_tty_write
• function rpmsg_tty_write_room
• function rpmsg_tty_hangup
• function rpmsg_tty_destruct_port
• function rpmsg_tty_probe
• function rpmsg_tty_remove
• function rpmsg_tty_init
• function rpmsg_tty_exit
• module init rpmsg_tty_init

Annotated Snippet

module_init(rpmsg_tty_init);
module_exit(rpmsg_tty_exit);

MODULE_AUTHOR("Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>");
MODULE_DESCRIPTION("remote processor messaging tty driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/module.h`, `linux/rpmsg.h`, `linux/slab.h`, `linux/tty.h`, `linux/tty_flip.h`.
• Detected declarations: `struct rpmsg_tty_port`, `function rpmsg_tty_cb`, `function rpmsg_tty_install`, `function rpmsg_tty_cleanup`, `function rpmsg_tty_open`, `function rpmsg_tty_close`, `function rpmsg_tty_write`, `function rpmsg_tty_write_room`, `function rpmsg_tty_hangup`, `function rpmsg_tty_destruct_port`.
• Atlas domain: Driver Families / drivers/tty.
• 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.