From cf7e9496e92e496840c5cd235f4cd52a6789a11d Mon Sep 17 00:00:00 2001
From: PancakeTAS <pancake@mgnet.work>
Date: Thu, 25 Jun 2026 12:33:32 +0200
Subject: Generalize device class

---
 include/drm++/drm.hpp          | 20 ++++++++++++++++----
 include/drm++/helper/ioctl.hpp |  1 +
 2 files changed, 17 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/drm++/drm.hpp b/include/drm++/drm.hpp
index 2833adf..4e94010 100644
--- a/include/drm++/drm.hpp
+++ b/include/drm++/drm.hpp
@@ -133,6 +133,8 @@
 #include "helper/macros.hpp"
 #include "helper/types.hpp"
 
+#include <string>
+
 namespace drm {
 
 ///
@@ -146,6 +148,11 @@ public:
     /// @throws std::invalid_argument if fd is invalid
     Device(int fd);
 
+    /// Set the client name for this file descriptor, useful for debugging and tracking.
+    void setClientName(const std::string& name) const;
+
+    /* Authentication */
+
     /// Attempt to acquire DRM master on the device. This will fail if another process is
     /// already DRM master.
     void acquireMaster() const;
@@ -153,16 +160,23 @@ public:
     /// Release DRM master on the device.
     void releaseMaster() const;
 
+    /// Fetch the magic token.
+    [[nodiscard]] u32 magic() const;
+
     /// Authenticate a file descriptor via magic token, allowing for access to
     /// restricted ioctls (such as mode setting).
     void authenticate(u32 magic) const;
 
+    /* Device information */
+
+    /// Get the unique string for this device. This operation is restricted to the DRM master.
+    [[nodiscard]] std::string unique() const;
+
     // Private access
     GETTER(fd)
-    GETTER(magic)
 
     // Move constructor/operator
-    Device(Device&& other) noexcept : m_fd(other.m_fd), m_magic(other.m_magic) {
+    Device(Device&& other) noexcept : m_fd(other.m_fd) {
         other.m_fd = -1; // invalidate other
     }
 
@@ -170,7 +184,6 @@ public:
         if (this != &other) {
             this->destruct();
             this->m_fd = other.m_fd;
-            this->m_magic = other.m_magic;
             other.m_fd = -1; // invalidate other
         }
 
@@ -187,7 +200,6 @@ public:
 
 private:
     int m_fd; // indicates device validity (>= 0)
-    u32 m_magic;
 
     void destruct() noexcept;
 };
diff --git a/include/drm++/helper/ioctl.hpp b/include/drm++/helper/ioctl.hpp
index fe87f3c..bd6c44a 100644
--- a/include/drm++/helper/ioctl.hpp
+++ b/include/drm++/helper/ioctl.hpp
@@ -15,6 +15,7 @@ namespace drm::ioctl {
 /// Type of ioctl() error.
 enum class Error : u8 {
     BadFileDescriptor,
+    NoAccess,
     InvalidArgument,
     NotSupported,
     Other //!< Check errno field
-- 
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