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/*
* Copyright (c) 2021-2022, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/Bus/USB/USBDevice.h>
#include <Kernel/FileSystem/SysFS/Component.h>
#include <Kernel/KBufferBuilder.h>
#include <Kernel/KString.h>
#include <Kernel/Locking/Mutex.h>
namespace Kernel {
class SysFSUSBDeviceInformation : public SysFSComponent {
friend class SysFSUSBBusDirectory;
public:
virtual ~SysFSUSBDeviceInformation() override;
static ErrorOr<NonnullRefPtr<SysFSUSBDeviceInformation>> create(USB::Device&);
virtual StringView name() const override { return m_device_name->view(); }
protected:
SysFSUSBDeviceInformation(NonnullOwnPtr<KString> device_name, USB::Device& device);
virtual ErrorOr<size_t> read_bytes(off_t offset, size_t count, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
NonnullRefPtr<USB::Device> m_device;
private:
ErrorOr<void> try_generate(KBufferBuilder&);
virtual ErrorOr<void> refresh_data(OpenFileDescription& description) const override;
mutable Mutex m_lock { "SysFSUSBDeviceInformation"sv };
NonnullOwnPtr<KString> m_device_name;
};
}
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