From 52a007ebee4e8ca284ec5767de01c311e9f1860e Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Tue, 3 Mar 2026 10:15:20 +0100
Subject: implement major and minor analog to the linux kernel

---
 kernel/devices/include/devices/BlockDevice.hpp                   | 1 +
 kernel/devices/include/devices/Device.hpp                        | 6 ++++--
 kernel/devices/include/devices/storage/RAMDisk/RAMDiskDevice.hpp | 4 ++--
 kernel/devices/include/devices/storage/StorageController.hpp     | 7 +++++++
 4 files changed, 14 insertions(+), 4 deletions(-)

(limited to 'kernel/devices/include')

diff --git a/kernel/devices/include/devices/BlockDevice.hpp b/kernel/devices/include/devices/BlockDevice.hpp
index 9e9ef08..2f9d0aa 100644
--- a/kernel/devices/include/devices/BlockDevice.hpp
+++ b/kernel/devices/include/devices/BlockDevice.hpp
@@ -9,6 +9,7 @@ namespace devices
 {
   struct block_device : device
   {
+    block_device(size_t major, size_t minor);
     virtual ~block_device() = default;
 
     virtual auto read_block(size_t block_index, void * buffer) const -> void = 0;
diff --git a/kernel/devices/include/devices/Device.hpp b/kernel/devices/include/devices/Device.hpp
index 815049f..0f93bff 100644
--- a/kernel/devices/include/devices/Device.hpp
+++ b/kernel/devices/include/devices/Device.hpp
@@ -2,18 +2,20 @@
 #define TEACH_OS_KERNEL_DEVICES_DEVICE_HPP
 
 #include <cstddef>
+
 namespace devices
 {
   struct device
   {
+    device(size_t major, size_t minor);
     virtual ~device() = default;
 
     auto major() const -> size_t;
     auto minor() const -> size_t;
 
   private:
-    size_t m_major = 0;  // TODO BA-FS26 initialize correctly
-    size_t m_minor = 0;  // TODO BA-FS26 initialize correctly
+    size_t m_major;
+    size_t m_minor;
   };
 }  // namespace devices
 
diff --git a/kernel/devices/include/devices/storage/RAMDisk/RAMDiskDevice.hpp b/kernel/devices/include/devices/storage/RAMDisk/RAMDiskDevice.hpp
index fdcef3f..de71663 100644
--- a/kernel/devices/include/devices/storage/RAMDisk/RAMDiskDevice.hpp
+++ b/kernel/devices/include/devices/storage/RAMDisk/RAMDiskDevice.hpp
@@ -13,8 +13,8 @@ namespace devices::storage::ram_disk
   {
     constexpr size_t static block_size = 512uz;  // TODO BA-FS26 really correct / good??
 
-    ram_disk_device() = default;
-    ram_disk_device(kapi::boot_modules::boot_module const & module);
+    ram_disk_device();  // TODO BA-FS26 remove when kstd::vector is available
+    ram_disk_device(kapi::boot_modules::boot_module const & module, size_t major, size_t minor);
 
     auto read_block(size_t block_index, void * buffer) const -> void override;
 
diff --git a/kernel/devices/include/devices/storage/StorageController.hpp b/kernel/devices/include/devices/storage/StorageController.hpp
index a51683d..50fdb34 100644
--- a/kernel/devices/include/devices/storage/StorageController.hpp
+++ b/kernel/devices/include/devices/storage/StorageController.hpp
@@ -13,8 +13,15 @@ namespace devices::storage
 
     virtual auto probe() -> void = 0;
 
+    auto set_ids(size_t major, size_t minors_per_dev) -> void;
+    auto major() const -> size_t;
+
     virtual auto devices_count() -> size_t = 0;
     virtual auto device_by_major_minor(size_t major, size_t minor) -> block_device * = 0;
+
+  protected:
+    size_t m_major{};
+    size_t m_minors_per_device{};
   };
 }  // namespace devices::storage
 
-- 
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