fix(Deck UHID): Provide specific fake chip ID upon request.

Author: pastaq

src/input/target/steam_deck.rs

@@ -2,7 +2,6 @@ use packed_struct::{
     types::{Integer, SizedInteger},
     PackedStruct,
 };
-use rand::Rng;
 use std::{
     cmp::Ordering,
     collections::HashMap,
@@ -137,7 +136,7 @@ impl SteamDeckDevice {
         }
 
         Ok(Self {
-            chip_id: Default::default(),
+            chip_id: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4],
             config,
             config_rx: None,
             current_report: ReportType::InputData,
@@ -1019,25 +1018,6 @@ impl TargetOutputDevice for SteamDeckDevice {
                 VID,
                 self.config.product_id.to_u32()
             );
-            let mut rng = rand::rng();
-            let chip_id: [u8; 15] = [
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-            ];
-            self.chip_id = chip_id;
         }
 
         // Increment the frame

src/input/target/steam_deck_uhid.rs

@@ -11,7 +11,6 @@ use packed_struct::{
     types::{Integer, SizedInteger},
     PackedStruct,
 };
-use rand::Rng;
 use tokio::sync::mpsc::{channel, Receiver};
 use uhid_virt::{Bus, CreateParams, StreamError, UHIDDevice};
 
@@ -77,7 +76,7 @@ impl SteamDeckUhidDevice {
     /// Create a new emulated Steam Deck device with the given configuration.
     pub fn new_with_config(config: SteamDeckConfig) -> Result<Self, Box<dyn Error>> {
         Ok(Self {
-            chip_id: Default::default(),
+            chip_id: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4],
             config,
             config_rx: None,
             current_report: ReportType::InputData,
@@ -777,25 +776,6 @@ impl TargetOutputDevice for SteamDeckUhidDevice {
                 VID,
                 self.config.product_id.to_u32()
             );
-            let mut rng = rand::rng();
-            let chip_id: [u8; 15] = [
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-                rng.random(),
-            ];
-            self.chip_id = chip_id;
         }
 
         let Some(device) = self.device.as_mut() else {