kapi: add find overload to find composed interfaces

1 files changed, 14 insertions, 0 deletions

diff --git a/kernel/kapi/devices/interface_registry.cpp b/kernel/kapi/devices/interface_registry.cpp
index da3d080a..d959c857 100644
--- a/kernel/kapi/devices/interface_registry.cpp
+++ b/kernel/kapi/devices/interface_registry.cpp
@@ -97,6 +97,20 @@ namespace kapi::devices
     return *found;
   }
 
+  auto interface_registry::find(interface interface, device const & device) const -> kstd::result<entry>
+  {
+    auto found = std::ranges::find_if(m_entries, [&](auto e) {
+      auto locked_device = e.device();
+      return e.interface() == interface && locked_device && locked_device.get() == &device;
+    });
+    if (found == m_entries.cend())
+    {
+      return kstd::failure(make_error_code(kstd::errc::no_such_device));
+    }
+
+    return *found;
+  }
+
 }  // namespace kapi::devices
 
 namespace kapi::test_support::devices