From 8eed4d31cf1d07d43e99d53da0fe3a401ce9e85e Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Sun, 15 Mar 2026 16:24:42 +0100
Subject: every device has a name, generate ram disk device names

---
 kernel/devices/include/devices/block_device.hpp         |  4 +++-
 kernel/devices/include/devices/device.hpp               | 12 ++++++++++--
 kernel/devices/src/block_device.cpp                     |  5 +++--
 kernel/devices/src/device.cpp                           |  9 ++++++++-
 kernel/devices/src/storage/ram_disk/ram_disk_device.cpp | 16 ++++++++++++++--
 5 files changed, 38 insertions(+), 8 deletions(-)

diff --git a/kernel/devices/include/devices/block_device.hpp b/kernel/devices/include/devices/block_device.hpp
index 9bca53f..a2c849f 100644
--- a/kernel/devices/include/devices/block_device.hpp
+++ b/kernel/devices/include/devices/block_device.hpp
@@ -4,6 +4,7 @@
 #include "devices/device.hpp"
 
 #include <cstddef>
+#include <string_view>
 
 namespace devices
 {
@@ -16,9 +17,10 @@ namespace devices
      * @brief Create a block device descriptor.
      * @param major Device major number.
      * @param minor Device minor number.
+     * @param name Device name.
      * @param block_size Size of one logical block in bytes.
      */
-    block_device(size_t major, size_t minor, size_t block_size);
+    block_device(size_t major, size_t minor, std::string_view name, size_t block_size);
 
     /**
      * @brief Virtual destructor for block device.
diff --git a/kernel/devices/include/devices/device.hpp b/kernel/devices/include/devices/device.hpp
index 7f9f9e1..d1c202d 100644
--- a/kernel/devices/include/devices/device.hpp
+++ b/kernel/devices/include/devices/device.hpp
@@ -2,6 +2,7 @@
 #define TEACH_OS_KERNEL_DEVICES_DEVICE_HPP
 
 #include <cstddef>
+#include <string_view>
 
 namespace devices
 {
@@ -14,8 +15,9 @@ namespace devices
      * @brief Create a device identifier from @p major and @p minor.
      * @param major Device major number.
      * @param minor Device minor number.
+     * @param name Device name.
      */
-    device(size_t major, size_t minor);
+    device(size_t major, size_t minor, std::string_view name);
 
     /**
      * @brief Virtual destructor for device.
@@ -34,6 +36,12 @@ namespace devices
      */
     auto minor() const -> size_t;
 
+    /**
+     * @brief Returns the name of the device.
+     * @return Device name.
+     */
+    auto name() const -> std::string_view;
+
     /**
      * @brief Check if the device is a block device.
      * @return true if this device is a block device, false otherwise.
@@ -46,7 +54,7 @@ namespace devices
   private:
     size_t m_major;
     size_t m_minor;
-    // TODO BA-FS26 add name
+    std::string_view m_name;
   };
 }  // namespace devices
 
diff --git a/kernel/devices/src/block_device.cpp b/kernel/devices/src/block_device.cpp
index 2f0c2ca..40f842a 100644
--- a/kernel/devices/src/block_device.cpp
+++ b/kernel/devices/src/block_device.cpp
@@ -5,11 +5,12 @@
 #include "devices/device.hpp"
 
 #include <cstddef>
+#include <string_view>
 
 namespace devices
 {
-  block_device::block_device(size_t major, size_t minor, size_t block_size)
-      : device(major, minor)
+  block_device::block_device(size_t major, size_t minor, std::string_view name, size_t block_size)
+      : device(major, minor, name)
       , m_block_size(block_size)
   {
     if (m_block_size == 0)
diff --git a/kernel/devices/src/device.cpp b/kernel/devices/src/device.cpp
index aa5c1bb..8184321 100644
--- a/kernel/devices/src/device.cpp
+++ b/kernel/devices/src/device.cpp
@@ -1,12 +1,14 @@
 #include "devices/device.hpp"
 
 #include <cstddef>
+#include <string_view>
 
 namespace devices
 {
-  device::device(size_t major, size_t minor)
+  device::device(size_t major, size_t minor, std::string_view name)
       : m_major(major)
       , m_minor(minor)
+      , m_name(name)
   {}
 
   auto device::major() const -> size_t
@@ -18,4 +20,9 @@ namespace devices
   {
     return m_minor;
   }
+
+  auto device::name() const -> std::string_view
+  {
+    return m_name;
+  }
 }  // namespace devices
\ No newline at end of file
diff --git a/kernel/devices/src/storage/ram_disk/ram_disk_device.cpp b/kernel/devices/src/storage/ram_disk/ram_disk_device.cpp
index 3bd3967..8e9988d 100644
--- a/kernel/devices/src/storage/ram_disk/ram_disk_device.cpp
+++ b/kernel/devices/src/storage/ram_disk/ram_disk_device.cpp
@@ -7,21 +7,33 @@
 
 #include <kstd/cstring>
 
+#include <array>
 #include <cstddef>
+#include <string_view>
 
 namespace devices::storage::ram_disk
 {
   namespace
   {
     constexpr size_t RAM_DISK_BLOCK_SIZE = 512uz;  // TODO BA-FS26 really correct / good??
+
+    // TODO BA-FS26 @Felix
+    // TODO BA-FS26 currently only names for 9 minor devices
+    constinit std::array<char, 5> NAME = {'r', 'a', 'm', '0', '\0'};
+
+    auto determine_device_name(size_t minor) -> std::string_view
+    {
+      NAME[3] = '0' + minor;
+      return std::string_view{NAME};
+    }
   }  // namespace
 
   ram_disk_device::ram_disk_device()  // TODO BA-FS26 remove when kstd::vector is available
-      : block_device(0, 0, RAM_DISK_BLOCK_SIZE)
+      : block_device(0, 0, determine_device_name(0), RAM_DISK_BLOCK_SIZE)
   {}
 
   ram_disk_device::ram_disk_device(kapi::boot_modules::boot_module const & module, size_t major, size_t minor)
-      : block_device(major, minor, RAM_DISK_BLOCK_SIZE)
+      : block_device(major, minor, determine_device_name(minor), RAM_DISK_BLOCK_SIZE)
       , m_boot_module(module)
   {}
 
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