From 604c2a843d95921e0429ebbdd5849174e47a9547 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Thu, 16 Jul 2026 17:30:17 +0200
Subject: kernel: begin block device re-architecture work

---
 kernel/kapi/filesystem.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'kernel/kapi/filesystem.cpp')

diff --git a/kernel/kapi/filesystem.cpp b/kernel/kapi/filesystem.cpp
index 982d5df0..b2f94747 100644
--- a/kernel/kapi/filesystem.cpp
+++ b/kernel/kapi/filesystem.cpp
@@ -7,6 +7,7 @@
 #include <kstd/memory.hpp>
 #include <kstd/result.hpp>
 #include <kstd/system_error.hpp>
+#include <kstd/units.hpp>
 
 #include <cstddef>
 #include <expected>
@@ -42,17 +43,18 @@ namespace kapi::filesystem
         .and_then([=]() { return kernel::filesystem::open_file_table::get().remove_file(file_descriptor); });
   }
 
-  auto read(size_t file_descriptor, std::span<std::byte> buffer) -> std::expected<std::size_t, kstd::error_code>
+  auto read(size_t file_descriptor, std::span<std::byte> buffer) -> std::expected<kstd::units::bytes, kstd::error_code>
   {
     return kernel::filesystem::open_file_table::get().file(file_descriptor).and_then([=](auto descriptor) {
-      return descriptor->read(buffer.data(), buffer.size());
+      return descriptor->read(buffer.data(), kstd::units::bytes{buffer.size()});
     });
   }
 
-  auto write(size_t file_descriptor, std::span<std::byte const> buffer) -> std::expected<std::size_t, kstd::error_code>
+  auto write(size_t file_descriptor, std::span<std::byte const> buffer)
+      -> std::expected<kstd::units::bytes, kstd::error_code>
   {
     return kernel::filesystem::open_file_table::get().file(file_descriptor).and_then([=](auto descriptor) {
-      return descriptor->write(buffer.data(), buffer.size());
+      return descriptor->write(buffer.data(), kstd::units::bytes{buffer.size()});
     });
   }
 
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