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Kernel: Make device generate their own names

Besides removing the monolithic DevFSDeviceInode::determine_name()
method, being able to determine a device's name inside the /dev
hierarchy outside of DevFS has its uses.
This commit is contained in:
Jean-Baptiste Boric 2021-01-21 18:49:56 +01:00 committed by Andreas Kling
parent a2601e1308
commit f64e287b82
29 changed files with 76 additions and 69 deletions

View file

@ -192,6 +192,11 @@ KResultOr<Region*> BXVGADevice::mmap(Process& process, FileDescription&, Virtual
shared);
}
String BXVGADevice::device_name() const
{
return String::formatted("fb{}", minor());
}
int BXVGADevice::ioctl(FileDescription&, unsigned request, FlatPtr arg)
{
REQUIRE_PROMISE(video);

View file

@ -46,6 +46,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0660; }
virtual String device_name() const override;
private:
virtual const char* class_name() const override { return "BXVGA"; }

View file

@ -58,6 +58,7 @@ public:
uid_t gid() const { return m_gid; }
virtual mode_t required_mode() const = 0;
virtual String device_name() const = 0;
virtual bool is_device() const override { return true; }
virtual bool is_disk_device() const { return false; }

View file

@ -38,6 +38,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0600; }
virtual String device_name() const override { return "full"; }
private:
// ^CharacterDevice

View file

@ -76,6 +76,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0440; }
virtual String device_name() const override { return "keyboard"; }
private:
// ^IRQHandler

View file

@ -114,4 +114,9 @@ int MBVGADevice::ioctl(FileDescription&, unsigned request, FlatPtr arg)
};
}
String MBVGADevice::device_name() const
{
return String::formatted("fb{}", minor());
}
}

View file

@ -45,6 +45,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0660; }
virtual String device_name() const override;
private:
virtual const char* class_name() const override { return "MBVGA"; }

View file

@ -41,6 +41,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0666; }
virtual String device_name() const override { return "null"; }
private:
// ^CharacterDevice

View file

@ -63,6 +63,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0440; }
virtual String device_name() const override { return "mouse"; }
private:
// ^IRQHandler

View file

@ -38,6 +38,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0666; }
virtual String device_name() const override { return "random"; }
private:
// ^CharacterDevice

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@ -55,6 +55,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0220; }
virtual String device_name() const override { return "audio"; }
private:
// ^IRQHandler

View file

@ -87,6 +87,11 @@ KResultOr<size_t> SerialDevice::write(FileDescription&, size_t, const UserOrKern
return (size_t)nread;
}
String SerialDevice::device_name() const
{
return String::formatted("ttyS{}", minor() - 64);
}
void SerialDevice::initialize()
{
set_interrupts(0);

View file

@ -125,6 +125,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0620; }
virtual String device_name() const override;
private:
// ^CharacterDevice

View file

@ -38,6 +38,7 @@ public:
// ^Device
virtual mode_t required_mode() const override { return 0666; }
virtual String device_name() const override { return "zero"; }
private:
// ^CharacterDevice