mirror of
https://github.com/RGBCube/serenity
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1dbd32488f
This change in fact does the following:
1. Use support for symlinks between /sys/dev/block/ storage device
identifier nodes and devices in /sys/devices/storage/{LUN}.
2. Add basic nodes in a /sys/devices/storage/{LUN} directory, to let
userspace to know about the device and its details.
39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <Kernel/FileSystem/SysFS/Component.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/DeviceDirectory.h>
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#include <Kernel/KBuffer.h>
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namespace Kernel {
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class StorageDeviceAttributeSysFSComponent : public SysFSComponent {
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public:
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enum class Type {
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EndLBA,
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SectorSize,
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CommandSet,
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InterfaceType,
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};
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public:
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static NonnullRefPtr<StorageDeviceAttributeSysFSComponent> must_create(StorageDeviceSysFSDirectory const& device_directory, Type);
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virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const override;
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virtual ~StorageDeviceAttributeSysFSComponent() {};
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virtual StringView name() const override;
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protected:
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ErrorOr<NonnullOwnPtr<KBuffer>> try_to_generate_buffer() const;
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StorageDeviceAttributeSysFSComponent(StorageDeviceSysFSDirectory const& device, Type);
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NonnullRefPtr<StorageDevice> m_device;
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Type const m_type { Type::EndLBA };
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};
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}
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