banan-os/kernel/include/kernel/Device/DebugDevice.h

33 lines
861 B
C++

#include <kernel/Device/Device.h>
namespace Kernel
{
class DebugDevice : public CharacterDevice
{
public:
static BAN::ErrorOr<BAN::RefPtr<DebugDevice>> create(mode_t, uid_t, gid_t);
virtual dev_t rdev() const override { return m_rdev; }
virtual BAN::StringView name() const override { return "debug"_sv; }
protected:
DebugDevice(mode_t mode, uid_t uid, gid_t gid, dev_t rdev)
: CharacterDevice(mode, uid, gid)
, m_rdev(rdev)
{ }
virtual BAN::ErrorOr<size_t> read_impl(off_t, BAN::ByteSpan) override { return 0; }
virtual BAN::ErrorOr<size_t> write_impl(off_t, BAN::ConstByteSpan buffer) override;
virtual bool can_read_impl() const override { return false; }
virtual bool can_write_impl() const override { return true; }
virtual bool has_error_impl() const override { return false; }
private:
const dev_t m_rdev;
};
}