kapi: generalize device interface resolution

1 files changed, 15 insertions, 0 deletions

diff --git a/kernel/kapi/devices/device.cpp b/kernel/kapi/devices/device.cpp
index 4c63f6a4..3eb9aaac 100644
--- a/kernel/kapi/devices/device.cpp
+++ b/kernel/kapi/devices/device.cpp
@@ -12,6 +12,21 @@ namespace kapi::devices
       : m_name(name)
   {}
 
+  auto device::as(interface interface) noexcept -> void *
+  {
+    return query_interface(interface);
+  }
+
+  auto device::as(interface interface) const noexcept -> void const *
+  {
+    return const_cast<device *>(this)->query_interface(interface);
+  }
+
+  auto device::is_a(interface interface) const noexcept -> bool
+  {
+    return const_cast<device *>(this)->query_interface(interface) != nullptr;
+  }
+
   auto device::name() const -> kstd::string const &
   {
     return m_name;