linux-kernel - Re: [PATCH 1/2] rust: usb: add basic USB abstractions

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Message-ID: <f5a802a4-ac9b-4b45-8d1c-871e2e06d7ac@suse.com>
Date: Tue, 23 Sep 2025 16:16:36 +0200
From: Oliver Neukum <oneukum@...e.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Danilo Krummrich <dakr@...nel.org>
Cc: Daniel Almeida <daniel.almeida@...labora.com>,
 Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>,
 Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
 Björn Roy Baron <bjorn3_gh@...tonmail.com>,
 Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>,
 Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>,
 linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org,
 linux-usb@...r.kernel.org
Subject: Re: [PATCH 1/2] rust: usb: add basic USB abstractions

On 23.09.25 16:13, Greg Kroah-Hartman wrote:

> Functions like usb_fill_bulk_urb() takes a pointer to a usb_device, not
> an interface.  Yes, we should fix that, but that "mistake" dates way way
> way back to the original USB api decades ago.  So much so that I didn't
> even remember that we used that pointer there :)

How would we do that? We need to be able to send at least control
request to devices before we have established which configurations
or interfaces the device has.

	Regards
		Oliver