From 369b03f279ddd2febe62d77d70eb7ef8a2baa3c5 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@pm.me>
Date: Wed, 10 Dec 2025 11:33:34 +0100
Subject: [PATCH] USLP reader getter functions

---
 CHANGELOG.md    |  2 ++
 src/uslp/mod.rs | 25 ++++++++++++++++++++++++-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 843f5bf..9fcb4d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Added `SequenceCounterOnFile` which persists the sequence counter by writing it to a file.
 - Added `SequenceCounter::set` method which allows manually setting an initial value.
 - Added `CcsdsPacketReader::raw_data` full data getter.
+- `UslpFrameCreator` constructor
+- Additional reader methods on `UslpFrameReader`
 
 ## Removed
 
diff --git a/src/uslp/mod.rs b/src/uslp/mod.rs
index 55f751a..5c4c037 100644
--- a/src/uslp/mod.rs
+++ b/src/uslp/mod.rs
@@ -99,7 +99,7 @@ pub struct PrimaryHeader {
     pub source_or_dest_field: SourceOrDestField,
     /// Virtual channel ID.
     pub vc_id: u6,
-    /// MAP ID.
+    /// Multiplexer Access Point (MAP) ID.
     pub map_id: u4,
     frame_len_field: u16,
     /// Bypass sequence control flag.
@@ -642,6 +642,29 @@ impl<'buf> TransferFrameReader<'buf> {
         self.primary_header.len_frame()
     }
 
+    /// Virtual channel ID.
+    #[inline]
+    pub fn vc_id(&self) -> u6 {
+        self.primary_header.vc_id
+    }
+    /// Multiplexer Access Point (MAP) ID.
+    #[inline]
+    pub fn map_id(&self) -> u4 {
+        self.primary_header.map_id
+    }
+
+    /// Spacecraft ID.
+    #[inline]
+    pub fn spacecraft_id(&self) -> u16 {
+        self.primary_header.spacecraft_id
+    }
+
+    /// Source or destination field.
+    #[inline]
+    pub fn source_or_dest_field(&self) -> SourceOrDestField {
+        self.primary_header.source_or_dest_field
+    }
+
     /// Primary header.
     #[inline]
     pub fn primary_header(&self) -> &PrimaryHeader {
-- 
2.43.0