razer: mark the Diamondback Chroma (0x004c) verified on hardware

captures/razer-diamondback-chroma/README.md

@@ -0,0 +1,17 @@
+# Razer Diamondback Chroma (`1532:004c`) hardware report, 2026-09-30
+
+Reporter's own mouse, firmware "Mouse 1.0", wired, Windows. Connected through
+OpenMouse Bridge with an unmodified `RazerHidClient`; the Bridge listed seven
+HID paths for the device and opened all of them.
+
+- `hardware-test-2026-09-30.json`: the app's hardware test export. Identity,
+  firmware, DPI (1800) and polling (500 Hz) read back; 800 DPI and 1000 Hz each
+  wrote, read back and were restored. Verdict: pass.
+
+What it does not settle:
+
+- Polling was read back but not measured: the sampler averaged 305 Hz against
+  the reported 500 Hz and flagged dropouts, so it skipped rather than failed.
+- The DPI stage read (`0x04`/`0x86`) gave nothing usable, so no stage editor
+  is offered on this model.
+- No raw feature reports were captured in this session.

captures/razer-diamondback-chroma/hardware-test-2026-09-30.json

@@ -0,0 +1,132 @@
+{
+  "device": {
+    "present": true,
+    "brand": "Razer",
+    "name": "Razer Diamondback Chroma",
+    "vendorId": 5426,
+    "productId": 76,
+    "productName": "Razer Diamondback Chroma",
+    "transport": "bridge",
+    "connectionType": "Wired",
+    "pollingRateHz": 500,
+    "supportedPollingRates": [
+      125,
+      500,
+      1000
+    ],
+    "dpi": 1800,
+    "dpiStages": null,
+    "activeDpiStage": null,
+    "batteryPercent": null,
+    "batteryState": "Unknown",
+    "firmware": [
+      "Mouse 1.0"
+    ],
+    "liftOffDistance": null,
+    "driverFamily": "razer",
+    "deviceMode": null,
+    "collectionsSummary": "interfaces 0x0001:0x0002, 0x000C:0x0001, 0x0001:0x0006, 0x0001:0x0080, 0x0001:0x0000",
+    "signalStrength": null,
+    "receiverOnline": null,
+    "receiverRfId": null,
+    "pairingInProgress": false
+  },
+  "results": [
+    {
+      "key": "connection",
+      "label": "Device connected",
+      "status": "pass",
+      "detail": "Connected through OpenMouse Bridge"
+    },
+    {
+      "key": "interface",
+      "label": "Control interface",
+      "status": "pass",
+      "detail": "interfaces 0x0001:0x0002, 0x000C:0x0001, 0x0001:0x0006, 0x0001:0x0080, 0x0001:0x0000"
+    },
+    {
+      "key": "identity",
+      "label": "Device identity",
+      "status": "pass",
+      "detail": "Razer Razer Diamondback Chroma"
+    },
+    {
+      "key": "driver",
+      "label": "Driver identification",
+      "status": "pass",
+      "detail": "Razer razer"
+    },
+    {
+      "key": "dpi",
+      "label": "DPI read-back",
+      "status": "pass",
+      "detail": "1,800 DPI"
+    },
+    {
+      "key": "pollingRead",
+      "label": "Polling rate read-back",
+      "status": "pass",
+      "detail": "500 Hz"
+    },
+    {
+      "key": "battery",
+      "label": "Battery read-back",
+      "status": "skip",
+      "detail": "Not reported by this device."
+    },
+    {
+      "key": "firmware",
+      "label": "Firmware read-back",
+      "status": "pass",
+      "detail": "Mouse 1.0"
+    },
+    {
+      "key": "liftOff",
+      "label": "Lift-off read-back",
+      "status": "skip",
+      "detail": "Not reported by this device."
+    },
+    {
+      "key": "link",
+      "label": "Wireless link (receiver)",
+      "status": "skip",
+      "detail": null
+    },
+    {
+      "key": "flashRead",
+      "label": "Flash / EEPROM read-back",
+      "status": "pass",
+      "detail": "decoded fields are in range (dpi, polling)"
+    },
+    {
+      "key": "brandWirelessBattery",
+      "label": "Razer wireless battery",
+      "status": "skip",
+      "detail": null
+    },
+    {
+      "key": "sampling",
+      "label": "Polling rate sampling",
+      "status": "skip",
+      "detail": "avg 305 Hz vs reported 500 Hz — dropout or rate mismatch detected, so the sample is not counted as a failure."
+    },
+    {
+      "key": "flashWrite",
+      "label": "Flash write round-trip",
+      "status": "pass",
+      "detail": "wrote 800 DPI → read back → restored 1,800 DPI · wrote 1,000 Hz → read back → restored 500 Hz · Lift-off skipped"
+    }
+  ],
+  "verdict": "pass",
+  "durationMs": 17802.09999999404,
+  "runAt": "2026-09-30T21:58:33.335Z",
+  "build": "BETA · v2.0.58d",
+  "supportedPage": {
+    "listed": true,
+    "status": "likely",
+    "label": "Test Needed",
+    "matchedBy": "pid",
+    "pageModel": "Diamondback Chroma",
+    "detail": "listed as Test Needed on the supported-devices page — this passing verification supports moving it to Supported."
+  }
+}

docs/razer-testing.md

@@ -25,6 +25,7 @@ Identifiers verified on hardware:
 - `1532:00a3` — Cobra, wired (separate driver)
 - `1532:00b6` — DeathAdder V3 Pro, wired (firmware 2.1)
 - `1532:00b7` — DeathAdder V3 Pro, stock HyperSpeed receiver (firmware 2.1)
+- `1532:004c`: Diamondback Chroma, wired (firmware 1.0, through OpenMouse Bridge)
 
 Mouse Dock Pro uses the same 90-byte protocol as the paired mouse. It has no
 fixed polling list: if the paired mouse answers the extended polling command it

src/drivers/razer/devices.test.ts

@@ -65,6 +65,9 @@ const VERIFIED_SINCE: ReadonlyArray<[number, VerifiedProfile]> = [
   // Same mouse over the cable, same session: 13/13 writes persisted, 126 Hz
   // peak measured at 125, battery reports "Charging".
   [0x00b6, { model: "DeathAdder V3 Pro (Wired)", wireless: false, maxDpi: 30000, transactionId: RAZER_TRANSACTION_ID, rates: RATES_1K, highRate: false }],
+  // Diamondback Chroma (firmware 1.0) over the cable through OpenMouse Bridge:
+  // answers on `0xff`, and DPI and legacy polling each round-tripped.
+  [0x004c, { model: "Diamondback Chroma", wireless: false, maxDpi: 16000, transactionId: RAZER_TRANSACTION_ID_FF, rates: RATES_1K, highRate: false }],
 ];
 
 const VERIFIED = [...REFACTOR_BASELINE, ...VERIFIED_SINCE];
@@ -77,7 +80,7 @@ const VERIFIED = [...REFACTOR_BASELINE, ...VERIFIED_SINCE];
  * hardware-tested", so it is pinned like the others without claiming to be
  * verified.
  */
-const HARDWARE_VERIFIED: readonly number[] = [0x00a4, 0x00a5, 0x00a6, 0x00a7, 0x00a8, 0x00c0, 0x00c1, 0x00b8, 0x00b7, 0x00b6];
+const HARDWARE_VERIFIED: readonly number[] = [0x00a4, 0x00a5, 0x00a6, 0x00a7, 0x00a8, 0x00c0, 0x00c1, 0x00b8, 0x00b7, 0x00b6, 0x004c];
 
 test("every pinned product keeps exactly the profile it was given", () => {
   // A silent change to any of these would only show up on hardware, which is

src/razer/devices.ts

@@ -441,7 +441,12 @@ const PRODUCT_DEFINITIONS: ReadonlyArray<[number, Omit<RazerProduct, "transactio
   [0x0045, { model: "Mamba", ...STANDARD_WIRELESS }],
   [0x0046, { model: "Mamba Tournament Edition", ...STANDARD }],
   [0x0048, { model: "Orochi (Wired)", ...STANDARD, maxDpi: DPI_PRE_CHROMA }],
-  [0x004c, { model: "Diamondback Chroma", ...STANDARD }],
+  // Verified on firmware 1.0 over the cable, through OpenMouse Bridge on
+  // Windows: identity, DPI (1800) and polling (500 Hz) read back, and 800 DPI
+  // and 1000 Hz each wrote, read back and were restored. The polling sampler
+  // saw dropouts, so the rate was read back but not measured. The stage read
+  // gave nothing usable, so no stage editor is offered.
+  [0x004c, { model: "Diamondback Chroma", ...STANDARD, verified: true }],
   [0x004f, { model: "DeathAdder 2000", ...STANDARD, maxDpi: 2000 }],
   [0x0050, { model: "Naga Hex V2", ...STANDARD }],
   [0x0053, { model: "Naga Chroma", ...STANDARD }],