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In light of the newly-added Rust abstractions for USB devices and drivers, add a sample USB rust driver that serves both to showcase what is currently supported, as well as be the only user of the USB abstractions for now. Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250825-b4-usb-v1-2-7aa024de7ae8@collabora.com [ force USB = y for now - gregkh ] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
47 lines
1.3 KiB
Rust
47 lines
1.3 KiB
Rust
// SPDX-License-Identifier: GPL-2.0
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// SPDX-FileCopyrightText: Copyright (C) 2025 Collabora Ltd.
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//! Rust USB driver sample.
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use kernel::{device, device::Core, prelude::*, sync::aref::ARef, usb};
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struct SampleDriver {
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_intf: ARef<usb::Interface>,
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}
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kernel::usb_device_table!(
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USB_TABLE,
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MODULE_USB_TABLE,
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<SampleDriver as usb::Driver>::IdInfo,
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[(usb::DeviceId::from_id(0x1234, 0x5678), ()),]
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);
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impl usb::Driver for SampleDriver {
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type IdInfo = ();
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const ID_TABLE: usb::IdTable<Self::IdInfo> = &USB_TABLE;
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fn probe(
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intf: &usb::Interface<Core>,
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_id: &usb::DeviceId,
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_info: &Self::IdInfo,
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) -> Result<Pin<KBox<Self>>> {
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let dev: &device::Device<Core> = intf.as_ref();
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dev_info!(dev, "Rust USB driver sample probed\n");
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let drvdata = KBox::new(Self { _intf: intf.into() }, GFP_KERNEL)?;
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Ok(drvdata.into())
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}
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fn disconnect(intf: &usb::Interface<Core>, _data: Pin<&Self>) {
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let dev: &device::Device<Core> = intf.as_ref();
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dev_info!(dev, "Rust USB driver sample disconnected\n");
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}
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}
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kernel::module_usb_driver! {
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type: SampleDriver,
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name: "rust_driver_usb",
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authors: ["Daniel Almeida"],
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description: "Rust USB driver sample",
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license: "GPL v2",
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}
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