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From: "Danilo Krummrich" <dakr@kernel.org>
To: "Alice Ryhl" <aliceryhl@google.com>
Cc: "Greg KH" <gregkh@linuxfoundation.org>, <rafael@kernel.org>,
	<ojeda@kernel.org>, <alex.gaynor@gmail.com>,
	<boqun.feng@gmail.com>, <gary@garyguo.net>,
	<bjorn3_gh@protonmail.com>, <lossin@kernel.org>,
	<a.hindborg@kernel.org>, <tmgross@umich.edu>,
	<rust-for-linux@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/3] device: rust: expand documentation for Device
Date: Mon, 21 Jul 2025 14:13:14 +0200	[thread overview]
Message-ID: <DBHQ2ZDUHLSW.LHWUTFQO1E60@kernel.org> (raw)
In-Reply-To: <aH4telYyyexiMbjx@google.com>

On Mon Jul 21, 2025 at 2:07 PM CEST, Alice Ryhl wrote:
> The connection is that to request an irq you must have a &Device<Bound>,
> so if you can only obtain a &Device<Bound> to a bus device, then that
> means that you can never request an irq for a class device.

As mentioned in my other reply, a class device never owns resources of a "real"
device such as an IRQ.

A USB device, which represents a real device on a bus, is a bus device, in your
example the class device is the input device.

  reply	other threads:[~2025-07-21 12:13 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-17 22:45 [PATCH 0/3] Documentation for Device / Driver infrastructure Danilo Krummrich
2025-07-17 22:45 ` [PATCH 1/3] device: rust: documentation for DeviceContext Danilo Krummrich
2025-07-18 12:32   ` Alexandre Courbot
2025-07-18 13:14     ` Danilo Krummrich
2025-07-21 13:48       ` Benno Lossin
2025-07-18 13:09   ` Daniel Almeida
2025-07-18 14:16     ` Danilo Krummrich
2025-07-20 15:45       ` Daniel Almeida
2025-07-17 22:45 ` [PATCH 2/3] device: rust: expand documentation for Device Danilo Krummrich
2025-07-20 15:56   ` Daniel Almeida
2025-07-21 11:26   ` Alice Ryhl
2025-07-21 11:42     ` Greg KH
2025-07-21 12:07       ` Alice Ryhl
2025-07-21 12:13         ` Danilo Krummrich [this message]
2025-07-21 13:17           ` Greg KH
2025-07-21 13:41             ` Danilo Krummrich
2025-07-21 12:07     ` Danilo Krummrich
2025-07-17 22:45 ` [PATCH 3/3] driver: rust: expand documentation for driver infrastructure Danilo Krummrich
2025-07-20 15:57   ` Daniel Almeida
2025-07-19  7:56 ` [PATCH 0/3] Documentation for Device / Driver infrastructure Greg KH

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