zircon/system/fidl/fuchsia-device-manager/debug.fidl

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library fuchsia.device.manager;

using zx;

/// Dumps text debug information.
///
/// All methods dump ascii text into a VMO, this allows the caller the flexibility to decide
/// how much data they want. Use the returned `written` value to read the data, no string
/// termination is guaranteed.
[Discoverable, Layout = "Simple"]
protocol DebugDumper {
    /// Print device tree into `output`, returns bytes `written` and bytes `available` to write.
    DumpTree(handle<vmo> output) -> (zx.status status, uint64 written, uint64 available);

    /// Print information about all drivers into `output`, returns bytes `written` and bytes `available` to write.
    DumpDrivers(handle<vmo> output) -> (zx.status status, uint64 written, uint64 available);

    /// Print all devices and their binding properties into `output`, returns bytes `written`
    /// and bytes `available` to write.
    DumpBindingProperties(handle<vmo> output) -> (zx.status status, uint64 written, uint64 available);
};