[PATCH RFC 0/3] rust: tty: introduce TTY subsystem abstractions and rttyprintk

[SeungJong Ha via B4 Relay]

Hello,

This RFC patch series introduces Rust abstractions for the
TTY subsystem and implements a sample driver, rttyprintk.

Currently, TTY abstractions are missing in the
Rust for Linux implementation. This series aims to fill that gap.

It consists of two main parts:
- Rust TTY abstractions
- The rttyprintk driver
rttyprintk serves as the first example of a Rust TTY driver.
I chose to port ttyprintk because its simplicity makes it and 
ideal candidate for validating the new abstractions and demonstrating
their usage.

Thank you!

Signed-off-by: SeungJong Ha <engineer.jjhama@xxxxxxxxx>
---
SeungJong Ha (3):
      rust: bindings: add TTY subsystem headers
      rust: tty: add TTY subsystem abstractions
      char: rttyprintk: add Rust TTY printk driver

 drivers/char/Kconfig            |  13 ++
 drivers/char/Makefile           |   1 +
 drivers/char/rttyprintk.rs      | 180 +++++++++++++++
 rust/bindings/bindings_helper.h |   3 +
 rust/kernel/lib.rs              |   2 +
 rust/kernel/tty.rs              | 173 +++++++++++++++
 rust/kernel/tty/driver.rs       | 478 ++++++++++++++++++++++++++++++++++++++++
 rust/kernel/tty/port.rs         | 148 +++++++++++++
 8 files changed, 998 insertions(+)
---
base-commit: e741e19d7691c5e6f5c2bbff980d835dccb86054
change-id: 20260126-rust-tty-printk-driver-ccdca3263d61

Best regards,
-- 
SeungJong Ha <engineer.jjhama@xxxxxxxxx>