Add MTU property to Characteristic (#104)

bluez · Sep 13, 2023 · 1bad12c · 1bad12c
1 parent cfc9363
commit 1bad12c
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diff --git a/bluer-tools/src/gattcat.rs b/bluer-tools/src/gattcat.rs
@@ -641,6 +641,8 @@ impl DiscoverOpts {
                 };
                 println!("    Characteristic {char_id}");
 
+                print_if_some(6, "MTU", char.mtu().await.ok(), "bytes");
+
                 let flags = char.flags().await?;
                 print_if_some(6, "Flags", Some(char_flags_to_vec(&flags).join(", ")), "");
                 if flags.read {

diff --git a/bluer/src/gatt/remote.rs b/bluer/src/gatt/remote.rs
@@ -532,6 +532,17 @@ define_properties!(
             dbus: (CHARACTERISTIC_INTERFACE, "Value", Vec<u8>, MANDATORY),
             get: (cached_value, v => {v.to_owned()}),
         );
+
+        /// The maximum transmission unit for the characteristic.
+        ///
+        /// This is the maximum amount of data that can be sent or received
+        /// in a single packet for this characteristic. Longer data may be
+        /// able to be sent or received using long procedures when available.
+        property(
+            Mtu, usize,
+            dbus: (CHARACTERISTIC_INTERFACE, "MTU", u16, MANDATORY),
+            get: (mtu, v => { (*v).into() }),
+        );
     }
 );