Kernel: Move devices into Kernel/Devices/.

1 files changed, 38 insertions, 0 deletions

diff --git a/Kernel/Devices/NullDevice.cpp b/Kernel/Devices/NullDevice.cpp
new file mode 100644
index 0000000000..cfb73450e1
--- /dev/null
+++ b/Kernel/Devices/NullDevice.cpp
@@ -0,0 +1,38 @@
+#include "NullDevice.h"
+#include "Limits.h"
+#include <AK/StdLibExtras.h>
+#include <AK/kstdio.h>
+
+static NullDevice* s_the;
+
+NullDevice& NullDevice::the()
+{
+    ASSERT(s_the);
+    return *s_the;
+}
+
+NullDevice::NullDevice()
+    : CharacterDevice(1, 3)
+{
+    s_the = this;
+}
+
+NullDevice::~NullDevice()
+{
+}
+
+bool NullDevice::can_read(Process&) const
+{
+    return true;
+}
+
+ssize_t NullDevice::read(Process&, byte*, ssize_t)
+{
+    return 0;
+}
+
+ssize_t NullDevice::write(Process&, const byte*, ssize_t buffer_size)
+{
+    return min(GoodBufferSize, buffer_size);
+}
+