diff --git a/contrib/hw/174f-11a8.toml b/contrib/hw/174f-11a8.toml
new file mode 100644
index 0000000..a29d373
--- /dev/null
+++ b/contrib/hw/174f-11a8.toml
@@ -0,0 +1,13 @@
+[device]
+vendor_id  = 0x174F
+product_id = 0x11A8
+name       = "Lenovo ThinkPad P14s Gen 4 IR Camera (Syntek 174f:11a8)"
+
+[emitter]
+# UVC XU unit 14, selector 6, len 9: cur/def=[1,3,1] (off), max=[1,3,3] (on).
+# Same control as 04f2-b6d0 / 30c9-0120; also found by linux-enable-ir-emitter.
+unit     = 14
+selector = 6
+control_bytes = [1, 3, 3, 0, 0, 0, 0, 0, 0]
+# Rejects an all-zero "off" payload (ERANGE); the real off/default is [1,3,1,...].
+off_bytes     = [1, 3, 1, 0, 0, 0, 0, 0, 0]
diff --git a/crates/visage-hw/src/quirks.rs b/crates/visage-hw/src/quirks.rs
index e688844..4828a02 100644
--- a/crates/visage-hw/src/quirks.rs
+++ b/crates/visage-hw/src/quirks.rs
@@ -17,6 +17,8 @@ const QUIRK_174F_2454: &str = include_str!("../../../contrib/hw/174f-2454.toml")
 const QUIRK_30C9_00C2: &str = include_str!("../../../contrib/hw/30c9-00c2.toml");
 /// Compile-time embedded quirk for the HP OmniBook X Flip IR camera (Luxvisions 30c9:0120).
 const QUIRK_30C9_0120: &str = include_str!("../../../contrib/hw/30c9-0120.toml");
+/// Compile-time embedded quirk for the Lenovo ThinkPad P14s Gen 4 IR camera (Syntek 174f:11a8).
+const QUIRK_174F_11A8: &str = include_str!("../../../contrib/hw/174f-11a8.toml");
 
 static QUIRK_DB: OnceLock<Vec<QuirkFile>> = OnceLock::new();
 
@@ -68,6 +70,7 @@ const QUIRK_SOURCES: &[(&str, &str)] = &[
     ("174f-2454.toml", QUIRK_174F_2454),
     ("30c9-00c2.toml", QUIRK_30C9_00C2),
     ("30c9-0120.toml", QUIRK_30C9_0120),
+    ("174f-11a8.toml", QUIRK_174F_11A8),
 ];
 
 fn quirk_db() -> &'static Vec<QuirkFile> {
diff --git a/docs/hardware-compatibility.md b/docs/hardware-compatibility.md
index 98d4df3..a7b8782 100644
--- a/docs/hardware-compatibility.md
+++ b/docs/hardware-compatibility.md
@@ -107,6 +107,7 @@ VID:PID to the correct control bytes for each known device.
 | Lenovo ThinkPad X1 Carbon Gen 9 20XW00FPUS | `174f:2454` | ✅ Verified on hardware |
 | Lenovo ThinkBook 14 MP2PQAZG | `30c9:00c2` | ✅ Verified on hardware |
 | HP OmniBook X Flip | `30c9:0120` | ✅ Verified on hardware |
+| Lenovo ThinkPad P14s Gen 4 21HF | `174f:11a8` | ✅ Verified on hardware |
 
 **Known devices with NO quirk entry:**