Add support for the Insta360 Link 2C (2e1a:4c03)

README.md

@@ -47,6 +47,7 @@ Python, and never detaches the `uvcvideo` driver.
 | model | USB id | status |
 |-------|--------|--------|
 | Insta360 Link 2 | `2e1a:4c04` | validated on real hardware |
+| Insta360 Link 2C | `2e1a:4c03` | recognised, **not tested** |
 | Insta360 Link (original) | `2e1a:4c01` | recognised, **not tested** |
 
 ## Features

contrib/99-insta360-link.rules

@@ -8,6 +8,7 @@
 # Install:  sudo cp contrib/99-insta360-link.rules /etc/udev/rules.d/
 #           sudo udevadm control --reload && sudo udevadm trigger
 #
-# Insta360 Link 2 (validated) and original Link (recognised, untested).
+# Insta360 Link 2 (validated); Link 2C and original Link (recognised, untested).
 SUBSYSTEM=="video4linux", ATTRS{idVendor}=="2e1a", ATTRS{idProduct}=="4c04", TAG+="uaccess", GROUP="video", MODE="0660"
+SUBSYSTEM=="video4linux", ATTRS{idVendor}=="2e1a", ATTRS{idProduct}=="4c03", TAG+="uaccess", GROUP="video", MODE="0660"
 SUBSYSTEM=="video4linux", ATTRS{idVendor}=="2e1a", ATTRS{idProduct}=="4c01", TAG+="uaccess", GROUP="video", MODE="0660"

src/camera/model.rs

@@ -6,6 +6,8 @@ use std::fmt;
 pub const INSTA360_VID: u16 = 0x2e1a;
 /// USB product id of the Insta360 Link 2 (validated on real hardware).
 pub const LINK2_PID: u16 = 0x4c04;
+/// USB product id of the Insta360 Link 2C (recognised, **not** tested).
+pub const LINK2C_PID: u16 = 0x4c03;
 /// USB product id of the original Insta360 Link (recognised, **not** tested).
 pub const LINK_PID: u16 = 0x4c01;
 
@@ -15,6 +17,8 @@ pub const LINK_PID: u16 = 0x4c01;
 pub enum Model {
     /// Insta360 Link 2 — the primary, hardware-validated target.
     Link2,
+    /// Insta360 Link 2C — same control surface as the Link 2; untested.
+    Link2C,
     /// Original Insta360 Link — recognised by VID/PID only; untested.
     Link,
 }
@@ -27,6 +31,7 @@ impl Model {
         }
         match pid {
             LINK2_PID => Some(Model::Link2),
+            LINK2C_PID => Some(Model::Link2C),
             LINK_PID => Some(Model::Link),
             _ => None,
         }
@@ -36,6 +41,7 @@ impl Model {
     pub fn name(&self) -> &'static str {
         match self {
             Model::Link2 => "Insta360 Link 2",
+            Model::Link2C => "Insta360 Link 2C",
             Model::Link => "Insta360 Link",
         }
     }
@@ -59,6 +65,7 @@ mod tests {
     #[test]
     fn matches_known_ids() {
         assert_eq!(Model::from_usb_ids(0x2e1a, 0x4c04), Some(Model::Link2));
+        assert_eq!(Model::from_usb_ids(0x2e1a, 0x4c03), Some(Model::Link2C));
         assert_eq!(Model::from_usb_ids(0x2e1a, 0x4c01), Some(Model::Link));
         assert_eq!(Model::from_usb_ids(0x2e1a, 0x0000), None);
         assert_eq!(Model::from_usb_ids(0x046d, 0x4c04), None);
@@ -67,7 +74,9 @@ mod tests {
     #[test]
     fn only_link2_is_tested() {
         assert!(Model::Link2.is_tested());
+        assert!(!Model::Link2C.is_tested());
         assert!(!Model::Link.is_tested());
         assert_eq!(Model::Link2.name(), "Insta360 Link 2");
+        assert_eq!(Model::Link2C.name(), "Insta360 Link 2C");
     }
 }

src/commands/tracking.rs

@@ -35,12 +35,12 @@ fn emit(ctx: &Context, state: link2::TrackingState, warning: Option<String>) {
     );
 }
 
-/// Make sure the device really is a Link 2 whose unit 11 carries the AI GUID.
+/// Make sure the device really is a Link 2 / 2C whose unit 11 carries the AI GUID.
 fn check_unit(cam: &Camera) -> Result<()> {
     let info = cam.info();
-    if info.model != Model::Link2 {
+    if !matches!(info.model, Model::Link2 | Model::Link2C) {
         return Err(Error::Vendor(format!(
-            "tracking is only implemented for the Insta360 Link 2 (found {})",
+            "tracking is only implemented for the Insta360 Link 2 / Link 2C (found {})",
             info.model
         )));
     }