From 4c129b22f009697c38fc8c96f4c6ca5a209e3855 Mon Sep 17 00:00:00 2001
From: Dennis <denniswei305@gmail.com>
Date: Wed, 5 Aug 2026 19:07:58 +1000
Subject: [PATCH] added vendor ids for v2 pro

---
 src/devices/razer/TESTING.md |  2 ++
 src/devices/razer/hid.ts     |  8 +++++++-
 src/devices/vendors.ts       | 11 ++++++++---
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/src/devices/razer/TESTING.md b/src/devices/razer/TESTING.md
index dab27605..59b8c7c7 100644
--- a/src/devices/razer/TESTING.md
+++ b/src/devices/razer/TESTING.md
@@ -5,6 +5,8 @@ control interface open and reads then time out.
 
 Supported identifiers:
 
+- `1532:00a5` — Viper V2 Pro, wired
+- `1532:00a6` — Viper V2 Pro, Stock receiver
 - `1532:00c0` — Viper V3 Pro, wired
 - `1532:00c1` — Viper V3 Pro, HyperSpeed receiver
 
diff --git a/src/devices/razer/hid.ts b/src/devices/razer/hid.ts
index ee9b9456..82543259 100644
--- a/src/devices/razer/hid.ts
+++ b/src/devices/razer/hid.ts
@@ -24,6 +24,8 @@ interface RazerProduct {
   model: string;
   wireless: boolean;
   pollingRates: readonly number[];
+  // Defaults to DPI_MAX when omitted
+  maxDpi?: number;
 }
 
 // The cable tops out at 1000 Hz on this model, which is also the ceiling the
@@ -32,6 +34,10 @@ const RATES_WIRED: readonly number[] = [125, 500, 1000];
 const RATES_RECEIVER: readonly number[] = [125, 500, 1000, 2000, 4000, 8000];
 
 const PRODUCTS: ReadonlyMap<number, RazerProduct> = new Map([
+  // Stock receiver, not 8K HyperPolling.
+  [0x00a5, { model: "Viper V2 Pro", wireless: false, pollingRates: RATES_WIRED, maxDpi: 30000 }],
+  [0x00a6, { model: "Viper V2 Pro", wireless: true, pollingRates: RATES_WIRED, maxDpi: 30000 }],
+
   [0x00c0, { model: "Viper V3 Pro", wireless: false, pollingRates: RATES_WIRED }],
   [0x00c1, { model: "Viper V3 Pro", wireless: true, pollingRates: RATES_RECEIVER }],
 ]);
@@ -88,7 +94,7 @@ export class RazerHidClient {
   }
 
   maxDpi(): number {
-    return DPI_MAX;
+    return this.profile()?.maxDpi ?? DPI_MAX;
   }
 
   getSupportedPollingRates(): number[] {
diff --git a/src/devices/vendors.ts b/src/devices/vendors.ts
index d43c8162..56095aec 100644
--- a/src/devices/vendors.ts
+++ b/src/devices/vendors.ts
@@ -14,10 +14,14 @@ export const VENDOR_ID = {
   atk: 0x373b,
 } as const;
 
-// Viper V3 Pro exposes its control channel as a Generic Desktop Mouse
-// collection. Limit this broad collection filter to its two known PIDs so it
-// cannot also surface unrelated Razer keyboards or the Viper V4 Pro's ordinary
+// Viper V2/V3 Pro expose their control channel as a Generic Desktop Mouse
+// collection. Limit this broad collection filter to known PIDs so it cannot
+// also surface unrelated Razer keyboards or the Viper V4 Pro's ordinary
 // boot-mouse interfaces.
+export const RAZER_VIPER_V2_CONTROL_FILTERS: HIDDeviceFilter[] = [0x00a5, 0x00a6].map(
+  (productId) => ({ vendorId: VENDOR_ID.razer, productId, usagePage: 0x01, usage: 0x02 }),
+);
+
 export const RAZER_VIPER_V3_CONTROL_FILTERS: HIDDeviceFilter[] = [0x00c0, 0x00c1].map(
   (productId) => ({ vendorId: VENDOR_ID.razer, productId, usagePage: 0x01, usage: 0x02 }),
 );
@@ -89,6 +93,7 @@ export const SUPPORTED_HID_FILTERS: HIDDeviceFilter[] = [
   { vendorId: VENDOR_ID.lamzu },
   { vendorId: VENDOR_ID.orbital, usagePage: 0xff0a, usage: 1 },
   ...TEEVOLUTION_PRODUCT_IDS.map((productId) => ({ vendorId: VENDOR_ID.teevolution, productId })),
+  ...RAZER_VIPER_V2_CONTROL_FILTERS,
   ...RAZER_VIPER_V3_CONTROL_FILTERS,
   { vendorId: VENDOR_ID.vgn, productId: 0xfb56 },
   { vendorId: VENDOR_ID.vgn, productId: 0xfb57 },