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{ "id": 2217493, "url": "http://patchwork.ozlabs.org/api/covers/2217493/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/cover/20260329-rust_leds-v13-0-21a599c5b2d1@posteo.de/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260329-rust_leds-v13-0-21a599c5b2d1@posteo.de>", "list_archive_url": null, "date": "2026-03-29T17:22:31", "name": "[v13,0/3] rust: leds: add led classdev abstractions", "submitter": { "id": 91819, "url": "http://patchwork.ozlabs.org/api/people/91819/?format=api", "name": "Markus Probst", "email": "markus.probst@posteo.de" }, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/cover/20260329-rust_leds-v13-0-21a599c5b2d1@posteo.de/mbox/", "series": [ { "id": 497934, "url": "http://patchwork.ozlabs.org/api/series/497934/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=497934", "date": "2026-03-29T17:22:33", "name": "rust: leds: add led classdev abstractions", "version": 13, "mbox": "http://patchwork.ozlabs.org/series/497934/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2217493/comments/", "headers": { "Return-Path": "\n <linux-pci+bounces-51387-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=posteo.de header.i=@posteo.de header.a=rsa-sha256\n header.s=2017 header.b=Sk8yAUoq;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; 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Wysocki\" <rafael@kernel.org>,\n Bjorn Helgaas <bhelgaas@google.com>,\n =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= <kwilczynski@kernel.org>,\n Boqun Feng <boqun@kernel.org>, Boqun Feng <boqun@kernel.org>", "Cc": "rust-for-linux@vger.kernel.org, linux-leds@vger.kernel.org,\n linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,\n Markus Probst <markus.probst@posteo.de>", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=4287;\n i=markus.probst@posteo.de; h=from:subject:message-id;\n bh=iKynJEweRy7HGorcZcwMeO4im33KnxZxfF7YbJ6ZfoU=;\n b=kA0DAAgBNHYf+OetQ9IByyZiAGnJX86i4XU2tPsvIbQzzmzegMKRcFmzS9FP00pwWgkc4mRSn\n okCTwQAAQgAORYhBIJ0GMT0rFjncjDEczR2H/jnrUPSBQJpyV/OGxSAAAAAAAQADm1hbnUyLDIu\n NSsxLjExLDIsMgAKCRA0dh/4561D0r+7D/49wZwD4MQBMppvLayEUGSnoULv0ST5ozdd1vrCbdF\n b+JeUwAKv4uX4MGN6qEkCRtp51NMKHaTe5+XfxUfaEKzAjH2GE4Tmgv4Jv3YPRBQJ+Nyk8KdMSj\n M0IXYHrSw6t2C8RTqT4ERCexaCtXZSJaWigQfyy16FvCqgfPov+9s36opSVrgXYYv2SL3u6q0Es\n 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"url=https://posteo.de/keys/markus.probst@posteo.de.asc;\n preference=encrypt" }, "content": "This patch series has previously been contained in\nhttps://lore.kernel.org/rust-for-linux/20251008181027.662616-1-markus.probst@posteo.de/T/#t\nwhich added a rust written led driver for a microcontroller via i2c.\n\nAs the reading and writing to the i2c client via the register!\nmacro has not been implemented yet [1], the patch series will only\ncontain the additional abstractions required.\n\n[1] https://lore.kernel.org/rust-for-linux/DDDS2V0V2NVJ.16ZKXCKUA1HUV@kernel.org/\n\nThe following changes were made:\n* add basic led classdev abstractions to register and unregister leds\n\n* add basic led classdev abstractions to register and unregister\n multicolor leds\n\nChanges since v12:\n* add `led::DeviceBuilder::name()` and `DeviceBuilderState'\n* add `led::Color::as_c_str`\n\nChanges since v11:\n* use `led::DeviceBuilder` instead of `led::InitData`\n* use static_assert instead of const { assert!(...) }\n* restructured patches to avoid moving `led::Device` from\n rust/kernel/led.rs to rust/kernel/led/normal.rs in the 2. patch\n\nChanges since v10:\n* allow in-place initialization of `LedOps`\n* run rustfmt for code inside `try_pin_init!`\n\nChanges since v9:\n* add missing periods in documentation\n* duplicate `led::Device` and `led::Adapter` instead of using a complex\n trait\n* fix imports not using prelude\n* adapt to CStr change\n* documented `led::Color::Multi` and `led::Color::Rgb`\n\nChanges since v8:\n* accept `Option<ARef<Fwnode>>` in `led::InitData::fwnode()`\n* make functions in `MultiColorSubLed` const\n* drop the \"rust: Add trait to convert a device reference to a bus\n device reference\" patch, as it has been picked into driver-core\n\nChanges since v7:\n* adjusted import style\n* added classdev parameter to callback functions in `LedOps`\n* implement `led::Color`\n* extend `led::InitData` with\n - initial_brightness\n - default_trigger\n - default_color\n* split generic and normal led classdev abstractions up (see patch 3/4)\n* add multicolor led class device abstractions (see patch 4/4)\n* added MAINTAINERS entry\n\nChanges since v6:\n* fixed typos\n* improved documentation\n\nChanges since v5:\n* rename `IntoBusDevice` trait into `AsBusDevice`\n* fix documentation about `LedOps::BLOCKING`\n* removed dependency on i2c bindings\n* added `AsBusDevice` implementation for `platform::Device`\n* removed `device::Device` fallback implementation\n* document that `AsBusDevice` must not be used by drivers and is\n intended for bus and class device abstractions only.\n\nChanges since v4:\n* add abstraction to convert a device reference to a bus device\n reference\n* require the bus device as parent device and provide it in class device\n callbacks\n* remove Pin<Vec<_>> abstraction (as not relevant for the led\n abstractions)\n* fixed formatting in `led::Device::new`\n* fixed `LedOps::BLOCKING` did the inverse effect\n\nChanges since v3:\n* fixed kunit tests failing because of example in documentation\n\nChanges since v2:\n* return `Devres` on `led::Device` creation\n* replace KBox<T> with T in struct definition\n* increment and decrement reference-count of fwnode\n* make a device parent mandatory for led classdev creation\n* rename `led::Handler` to `led::LedOps`\n* add optional `brightness_get` function to `led::LedOps`\n* use `#[vtable]` instead of `const BLINK: bool`\n* use `Opaque::cast_from` instead of casting a pointer\n* improve documentation\n* improve support for older rust versions\n* use `&Device<Bound>` for parent\n\nChanges since v1:\n* fixed typos noticed by Onur Özkan\n\nSigned-off-by: Markus Probst <markus.probst@posteo.de>\n---\nMarkus Probst (3):\n rust: leds: add basic led classdev abstractions\n rust: leds: add Mode trait\n rust: leds: add multicolor classdev abstractions\n\n MAINTAINERS | 8 +\n rust/bindings/bindings_helper.h | 1 +\n rust/kernel/led.rs | 358 +++++++++++++++++++++++++++++++++++++\n rust/kernel/led/multicolor.rs | 387 ++++++++++++++++++++++++++++++++++++++++\n rust/kernel/led/normal.rs | 231 ++++++++++++++++++++++++\n rust/kernel/lib.rs | 1 +\n 6 files changed, 986 insertions(+)\n---\nbase-commit: d1d81e9d1a4dd846aee9ae77ff9ecc2800d72148\nchange-id: 20251114-rust_leds-a959f7c2f7f9" }