zircon/system/banjo/zircon.device.block/block.banjo

// Copyright 2018 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 zircon.device.block;

/// Flag advertising trim support.
const uint32 BLOCK_TRIM_SUPPORT = 0x00000001;

[repr = "C"]
struct BlockInfo {
    /// The number of blocks in this block device.
    uint64 block_count;

    /// The size of a single block.
    uint32 block_size;

    /// Max size in bytes per transfer.
    /// May be BLOCK_MAXRANSFER_UNBOUNDED if there
    /// is no restriction.
    uint32 max_transfer_size;

    uint32 flags;
    uint32 reserved;
};