This patch series has previously been contained in
https://lore.kernel.org/rust-for-linux/20251008181027.662616-1-markus.probst@posteo.de/T/#t
which added a rust written led driver for a microcontroller via i2c.
As the reading and writing to the i2c client via the register!
macro has not been implemented yet [1], the patch series will only
contain the additional abstractions required.
[1] https://lore.kernel.org/rust-for-linux/DDDS2V0V2NVJ.16ZKXCKUA1HUV@kernel.org/
The following changes were made:
* add basic Pin<Vec<T, A>> abstractions, that allow to initialize PinInit items with
the guarantee that these will never be moved.
* add basic led classdev abstractions to register and unregister leds
Changes since v3:
* fixed kunit tests failing because of example in documentation
Changes since v2:
* return `Devres` on `led::Device` creation
* replace KBox<T> with T in struct definition
* increment and decrement reference-count of fwnode
* make a device parent mandatory for led classdev creation
* rename `led::Handler` to `led::LedOps`
* add optional `brightness_get` function to `led::LedOps`
* use `#[vtable]` instead of `const BLINK: bool`
* use `Opaque::cast_from` instead of casting a pointer
* improve documentation
* improve support for older rust versions
* use `&Device<Bound>` for parent
Changes since v1:
* fixed typos noticed by Onur Özkan
Markus Probst (2):
rust: add basic Pin<Vec<T, A>> abstractions
rust: leds: add basic led classdev abstractions
rust/kernel/alloc.rs | 1 +
rust/kernel/alloc/kvec.rs | 86 ++++++++++
rust/kernel/led.rs | 333 ++++++++++++++++++++++++++++++++++++++
rust/kernel/lib.rs | 1 +
rust/kernel/prelude.rs | 2 +-
5 files changed, 422 insertions(+), 1 deletion(-)
create mode 100644 rust/kernel/led.rs
--
2.49.1