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// Copyright 2019 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use super::usb_hub::UsbHub;
use std::os::unix::io::RawFd;
use std::sync::Arc;
use utils::{EventLoop, FailHandle};
/// Xhci backend provider will run on an EventLoop and connect new devices to usb ports.
pub trait XhciBackendDeviceProvider: Send {
/// Start the provider on EventLoop.
fn start(
&mut self,
fail_handle: Arc<FailHandle>,
event_loop: Arc<EventLoop>,
hub: Arc<UsbHub>,
) -> std::result::Result<(), ()>;
/// Keep fds that should be kept open.
fn keep_fds(&self) -> Vec<RawFd>;
}
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