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a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1770423164; c=relaxed/simple;\n\tbh=/eQpxD2sb4vNUqwBKPae63xk1lUvqK11GwFqUeONjYo=;\n\th=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc;\n b=XAQN6zfUKgwnQYCcMClYiE6N2kG57ga6DD1B0nTh1p2jQO3md77nFUTTWbKM/5Q5kK9iGHMgeYvxg3IM13yNdyhkYUj1MNC3cnLqv5cukjb1ahZVrKzc2tQqfX8nAiWrlJjo28gE4oajH+s55nN3IckRt1kIaIEmZ5A3+GAARIQ=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=posteo.de;\n spf=pass smtp.mailfrom=posteo.de;\n dkim=pass (2048-bit key) header.d=posteo.de header.i=@posteo.de\n header.b=fxTz0Dp2; arc=none smtp.client-ip=185.67.36.65", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=posteo.de; s=2017;\n\tt=1770423161; bh=btyxq8XwrhaG9csiEMsrp6AcoXcVb5e4NRzBl+4nobo=;\n\th=From:Subject:Date:Message-Id:MIME-Version:Content-Type:\n\t Content-Transfer-Encoding:To:Cc:Autocrypt:OpenPGP:From;\n\tb=fxTz0Dp2nS4q2xb1wd+VwTKNRb5eY1JBTN7/ANkzOxz9mx7G/ncTIyjAypRcnJXHc\n\t 3REuoPUGTmrlHA3s2Ca0cPi74Wg1X04I5oUKpxFtAOBiNR7tT5ijdoJQ8C8byajejR\n\t kQiLK0hpcH7nU1StzrI3zNeXzCVEFxMp845Qriqtq7NBeVH3wLi+uvL7OIHkoZ4Hqy\n\t 1DzdxzeG6hQsB8baQW1hHyxru8pnffOPRCmBY5PVp6N2ZjDh6Pb4nGjG6j4SN0FCV9\n\t CxddLdDZk5MYfSlwnaWEQ/uau4DClakxJXytWCGQ+aP02hQw+0Dk55wpjte8FQ5jGN\n\t KEIEeShuuaqPg==", "From": "Markus Probst <markus.probst@posteo.de>", "Subject": "[PATCH v12 0/3] rust: leds: add led classdev abstractions", "Date": "Sat, 07 Feb 2026 00:12:41 +0000", "Message-Id": "<20260207-rust_leds-v12-0-fdb518417b75@posteo.de>", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; 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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>", "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=4169;\n i=markus.probst@posteo.de; h=from:subject:message-id;\n bh=/eQpxD2sb4vNUqwBKPae63xk1lUvqK11GwFqUeONjYo=;\n b=owEBiQJ2/ZANAwAIATR2H/jnrUPSAcsmYgBphoNrlASfJlug/Yqc0dys+Pv8aLAhhkvMNCtHk\n u0Mh+YXPYqJAk8EAAEIADkWIQSCdBjE9KxY53IwxHM0dh/4561D0gUCaYaDaxsUgAAAAAAEAA5t\n YW51MiwyLjUrMS4xMSwyLDIACgkQNHYf+OetQ9KaWw/+KPV/9b6X7H1E72lbiPV+FFPBSr91Bki\n /FD3DXmgzWYlY+LuMCCNNPabQaGtIjPeef888WSzOGQ6L2Mhc7AoXpalckwbZZOactrU2bwwv9w\n 79nQdGvl12NqtdUScvb8H3PjNvTX7lFWBqVAiMGGaIs8TrK+Pz3kY2cad9dkSZCmmBRPm6ypYJG\n 1MONYPPo6YLewAG0G4szK+pYdXJtvooD5AIS3oIXfUx+Hh2sXiw30lfrUAbwn0JEwsA4mCCmFYT\n 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"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 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 | 304 ++++++++++++++++++++++++++++++++\n rust/kernel/led/multicolor.rs | 382 ++++++++++++++++++++++++++++++++++++++++\n rust/kernel/led/normal.rs | 226 ++++++++++++++++++++++++\n rust/kernel/lib.rs | 1 +\n 6 files changed, 922 insertions(+)\n---\nbase-commit: 18f7fcd5e69a04df57b563360b88be72471d6b62\nchange-id: 20251114-rust_leds-a959f7c2f7f9" }