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da8d18b263
Under normal conditions (when mounting SysFS in /sys), there will be a new directory in the /sys/devices directory called "graphics". For now, under that directory there will be only a sub-directory called "connectors" which will contain all DisplayConnectors' details, each in its own sub-directory too, distinguished in naming with its minor number. Therefore, /sys/devices/graphics/connectors/MINOR_NUMBER/ will contain: - General device attributes such as mutable_mode_setting_capable, double_buffering_capable, flush_support, partial_flush_support and refresh_rate_support. These values are exposed in the ioctl interface of the DisplayConnector class too, but these can be useful later on for command line utilities that want/need to expose these basic settings. - The EDID blob, simply named "edid". This will help userspace to fetch the edid without the need of using the ioctl interface later on.
32 lines
901 B
C++
32 lines
901 B
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/DeviceIdentifiers/DeviceComponent.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/Directory.h>
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namespace Kernel {
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class Device;
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class DisplayConnector;
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class SysFSCharacterDevicesDirectory final : public SysFSDirectory {
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friend class DisplayConnector;
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public:
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virtual StringView name() const override { return "char"sv; }
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static NonnullRefPtr<SysFSCharacterDevicesDirectory> must_create(SysFSDeviceIdentifiersDirectory const&);
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static SysFSCharacterDevicesDirectory& the();
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ChildList& devices_list(Badge<Device>) { return m_child_components; }
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private:
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explicit SysFSCharacterDevicesDirectory(SysFSDeviceIdentifiersDirectory const&);
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};
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}
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