diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..46526f6
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,3 @@
+* text=auto eol=lf
+*.png binary
+*.jpg binary
diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
new file mode 100644
index 0000000..42859fa
--- /dev/null
+++ b/.gitea/workflows/ci.yml
@@ -0,0 +1,12 @@
+name: test
+on: [push, pull_request]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+      - name: 运行驱动单测（无需硬件）
+        run: node test/driver.test.mjs
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..846649e
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,18 @@
+# Changelog
+
+## v1.0.0
+
+首个公开版本。
+
+- ch340-webusb.js：WebUSB 上的 USB-Serial 栈
+  - CH340/CH341（1a86:7523 / 1a86:5523，兼容 5512/7522 克隆）完整初始化序列，对齐 Linux ch341.c
+  - 波特率分频 calcCh34xBaud()；32 深度预排队读 + ReadableStream；4096 分片写 + WritableStream
+  - DTR/RTS（CH340 用 0xA4 取反写入）、拔插事件、读诊断计数
+  - 附带 CDC-ACM（CH343/CH9102/CH347）、CP210x、FTDI（含 modem 状态字节剥离）、PL2303（HXN/HX/01/T）
+  - 五种芯片都实现了 setSignals()（DTR/RTS）
+- ch340-serial-shim.js：安卓上补出 navigator.serial，Web Serial 业务代码零改动可用；支持 chain 模式让位给蓝牙垫片
+- ch340-test.html：连接 / 收发 / HEX / DTR-RTS / 回环自测 测试台
+- examples/minimal.html：最小接入示例
+- index.d.ts：TypeScript 类型声明
+- docs/ch34x-registers.md：寄存器与控制传输说明
+- test/driver.test.mjs：16 项离线断言（mock USBDevice，无需硬件）
diff --git a/README.md b/README.md
index 36ab59a..63ac79b 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,18 @@ npx serve .        # 或 python -m http.server 8080
 # 手机访问 https 地址；安卓上建议用 cloudflared/ngrok 暴露本地端口
 ```
 
+## 仓库结构
+
+| 文件 | 说明 |
+|---|---|
+| ch340-webusb.js | 核心驱动（UMD：script 标签直接引，也可 require / import） |
+| ch340-serial-shim.js | navigator.serial 垫片（安卓零改动接入） |
+| ch340-test.html | 测试台（连接 / 收发 / HEX / DTR-RTS / 回环自测） |
+| examples/minimal.html | 最小接入示例 |
+| index.d.ts | TypeScript 类型声明 |
+| docs/ch34x-registers.md | 寄存器与控制传输说明 |
+| test/driver.test.mjs | 离线单测（mock USBDevice，无需硬件） |
+
 ## API
 
 | 成员 | 说明 |
diff --git a/ch340-webusb.js b/ch340-webusb.js
index cc47eb0..aeee4d6 100644
--- a/ch340-webusb.js
+++ b/ch340-webusb.js
@@ -268,6 +268,11 @@
       await req(0x07, 0x0302);
       log('driver', 'CP210x 初始化完成 @' + opts.baudRate + ' bps');
     },
+    /** SET_MHS(0x07)：高字节=掩码，低字节=电平；0x03 掩码表示"两条线都由本调用决定" */
+    setSignals: async function (ctx, sig) {
+      var bits = (sig.dataTerminalReady ? 0x01 : 0) | (sig.requestToSend ? 0x02 : 0);
+      await ctx.controlOut('vendor', 'interface', 0x07, 0x0300 | bits, ctx.layout.controlInterface);
+    },
     shutdown: async function (ctx) {
       var ci = ctx.layout.controlInterface;
       await ctx.controlOut('vendor', 'interface', 0x12, 0x000f, ci);
@@ -342,6 +347,12 @@
       await req(0x01, 0x0202);
       log('driver', 'FTDI 初始化完成 @' + opts.baudRate + ' bps');
     },
+    /** SET_MODEM_CTRL(0x01)：高字节=掩码，低字节=电平（0x01 DTR / 0x02 RTS） */
+    setSignals: async function (ctx, sig) {
+      var idx = ctx.layout.controlInterface + 1;
+      var bits = (sig.dataTerminalReady ? 0x01 : 0) | (sig.requestToSend ? 0x02 : 0);
+      await ctx.controlOut('vendor', 'device', 0x01, 0x0300 | bits, idx);
+    },
     shutdown: async function (ctx) {
       var idx = ctx.layout.controlInterface + 1;
       await ctx.controlOut('vendor', 'device', 0x00, 0x0001, idx);
@@ -411,6 +422,11 @@
       await ctx.controlOut('class', 'interface', 0x22, 0x0003, 0x0000);
       log('driver', 'PL2303 初始化完成 (' + type + ') @' + opts.baudRate + ' bps');
     },
+    /** 标准 CDC 请求 SET_CONTROL_LINE_STATE(0x22)：bit0=DTR, bit1=RTS */
+    setSignals: async function (ctx, sig) {
+      var bits = (sig.dataTerminalReady ? 0x01 : 0) | (sig.requestToSend ? 0x02 : 0);
+      await ctx.controlOut('class', 'interface', 0x22, bits, 0x0000);
+    },
     shutdown: async function (ctx) {
       var type = ctx.pl2303Type;
       if (!type) return;
diff --git a/examples/minimal.html b/examples/minimal.html
new file mode 100644
index 0000000..1b32a93
--- /dev/null
+++ b/examples/minimal.html
@@ -0,0 +1,53 @@
+<!doctype html>
+<html lang="zh-CN">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>ch340-webusb 最小示例</title>
+<style>
+  body { font:14px/1.6 system-ui,sans-serif; margin:0 auto; max-width:640px; padding:16px; }
+  button { padding:10px 14px; font-size:14px; }
+  pre { background:#0b0d12; color:#d8dee9; padding:10px; border-radius:8px; height:220px; overflow:auto; }
+</style>
+</head>
+<body>
+<h3>ch340-webusb 最小示例</h3>
+<p>
+  <button id="connect">连接 CH340</button>
+  <button id="close" disabled>断开</button>
+  <input id="text" value="hello" size="12">
+  <button id="send" disabled>发送</button>
+</p>
+<pre id="log"></pre>
+
+<script src="../ch340-webusb.js"></script>
+<script>
+// 1. 选设备（必须由用户点击触发）
+document.getElementById('connect').onclick = async () => {
+  const port = await TamaCh340.requestPort({ baudRate: 115200 });
+  // 2. 打开：内部完成 CH340 芯片初始化（波特率 / LCR / DTR-RTS）
+  await port.open({ baudRate: 115200 });
+  const writer = port.writable.getWriter();
+  const reader = port.readable.getReader();
+
+  (async () => {                                   // 3. 收
+    for (;;) {
+      const { value, done } = await reader.read();
+      if (done) break;
+      log('RX ' + Array.from(value).map(b => b.toString(16).padStart(2, '0')).join(' '));
+    }
+  })();
+
+  document.getElementById('send').onclick = () =>  // 4. 发
+    writer.write(new TextEncoder().encode(document.getElementById('text').value + '\r\n'));
+  document.getElementById('send').disabled = false;
+  document.getElementById('connect').disabled = true;
+  document.getElementById('close').disabled = false;
+  log('已连接 ' + JSON.stringify(port.getInfo()) + ' chip=' + port.chip);
+};
+
+document.getElementById('close').onclick = async () => { location.reload(); };
+function log(s) { const el = document.getElementById('log'); el.textContent += s + '\n'; el.scrollTop = el.scrollHeight; }
+</script>
+</body>
+</html>
diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..08183d4
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,116 @@
+/**
+ * ch340-webusb 类型声明（UMD：<script> 全局 / ESM / CJS 均可）
+ */
+export = TamaCh340;
+export as namespace TamaCh340;
+
+declare const TamaCh340: TamaCh340.Api;
+
+declare namespace TamaCh340 {
+  interface OpenOptions {
+    /** 波特率，默认 460800 */
+    baudRate?: number;
+    dataBits?: 8;
+    stopBits?: 1;
+    parity?: 'none';
+    flowControl?: 'none';
+    /** 单次 bulk 读的字节数，默认 = 端点 wMaxPacketSize（CH340 是 32） */
+    readTransferSize?: number;
+    /** 预排队读请求数，默认取驱动的 readQueueDepth（CH340 是 32） */
+    readQueueDepth?: number;
+  }
+
+  interface Signals {
+    dataTerminalReady?: boolean;
+    requestToSend?: boolean;
+  }
+
+  interface Info {
+    usbVendorId: number;
+    usbProductId: number;
+  }
+
+  interface Endpoint {
+    endpointNumber: number;
+    direction: 'in' | 'out';
+    type: string;
+    packetSize: number;
+  }
+
+  interface Layout {
+    claimedInterfaces: number[];
+    controlInterface: number;
+    input: Endpoint;
+    output: Endpoint;
+  }
+
+  interface Diagnostics {
+    transfers: number;
+    bytes: number;
+    transferSize: number;
+  }
+
+  /** 与 Web Serial 的 SerialPort 对齐，另加驱动相关扩展 */
+  interface BrowserSerialPort {
+    open(options?: OpenOptions): Promise<BrowserSerialPort>;
+    close(): Promise<void>;
+    getInfo(): Info;
+    /** open() 之后才有值 */
+    readonly readable: ReadableStream<Uint8Array> | null;
+    readonly writable: WritableStream<Uint8Array> | null;
+    /** 便捷读：timeoutMs 内无数据返回 null（会持有内部 reader） */
+    read(timeoutMs?: number): Promise<Uint8Array | null>;
+    /** 便捷写（会持有内部 writer） */
+    write(data: Uint8Array | ArrayBuffer | number[]): Promise<void>;
+    setSignals(signals: Signals): Promise<void>;
+    forget(): Promise<void>;
+    getDiagnostics(): Diagnostics;
+    addEventListener(type: 'disconnect', fn: (ev: { type: string; target: BrowserSerialPort }) => void): void;
+    removeEventListener(type: 'disconnect', fn: (ev: unknown) => void): void;
+    readonly device: USBDevice;
+    readonly chip: string;
+    readonly opened: boolean;
+    readonly layout?: Layout;
+  }
+
+  interface Driver {
+    name: string;
+    readQueueDepth?: number;
+    filters: USBDeviceFilter[];
+    supports(device: USBDevice): boolean;
+    layout(configuration: USBConfiguration): Layout;
+    initialize(ctx: unknown, options: OpenOptions & { baudRate: number }): Promise<void>;
+    shutdown?(ctx: unknown): Promise<void>;
+    setSignals?(ctx: unknown, signals: Signals): Promise<void>;
+  }
+
+  interface Api {
+    version: string;
+    /** 调试日志钩子 / 打开 console 输出 */
+    onLog: ((...args: unknown[]) => void) | null;
+    debug: boolean;
+    drivers: Driver[];
+    UsbSerialPort: new (device: USBDevice, driver: Driver, defaults?: OpenOptions) => BrowserSerialPort;
+
+    hasWebUSB(): boolean;
+    hasWebSerial(): boolean;
+    isAndroid(): boolean;
+    /** 全部驱动的 filters（去重） */
+    supportedFilters(): USBDeviceFilter[];
+    /** 只筛 CH340/CH341 */
+    ch34xFilters(): USBDeviceFilter[];
+    chipName(vendorId: number, productId: number): string;
+    pickDriver(device: USBDevice): Driver | null;
+    /** CH34x 波特率分频，与 Linux ch341.c 一致 */
+    calcCh34xBaud(baudRate: number): { factor: number; divisor: number };
+    calcFtdiBaud(baudRate: number): { value: number; fractionalIndex: number };
+
+    /** 弹设备选择框 → 返回未打开的端口 */
+    requestPort(options?: OpenOptions & { filters?: USBDeviceFilter[]; allDrivers?: boolean }): Promise<BrowserSerialPort>;
+    /** 选择 + 打开 */
+    connect(options?: OpenOptions & { allDrivers?: boolean }): Promise<BrowserSerialPort>;
+    fromDevice(device: USBDevice, options?: OpenOptions): BrowserSerialPort;
+    getAuthorizedDevices(options?: { allDrivers?: boolean }): Promise<USBDevice[]>;
+    getAuthorizedPorts(options?: { allDrivers?: boolean }): Promise<BrowserSerialPort[]>;
+  }
+}
diff --git a/package.json b/package.json
index 64c8435..4a0252f 100644
--- a/package.json
+++ b/package.json
@@ -1,27 +1,26 @@
 {
   "name": "ch340-webusb",
   "version": "1.0.0",
-  "description": "Browser driver for CH340/CH341 (and CDC-ACM/CP210x/FTDI/PL2303) USB-serial chips over WebUSB — works on Android Chrome, plus a navigator.serial shim.",
+  "description": "纯前端 CH340/CH341 USB 串口驱动：安卓 Chrome 走 WebUSB 零驱动，桌面走 Web Serial。Browser-only WebUSB driver for CH340/CH341 (plus CDC-ACM/CP210x/FTDI/PL2303) with a navigator.serial shim.",
   "main": "ch340-webusb.js",
+  "types": "index.d.ts",
   "files": [
     "ch340-webusb.js",
     "ch340-serial-shim.js",
     "ch340-test.html",
+    "index.d.ts",
     "docs",
+    "examples",
     "README.md",
     "LICENSE"
   ],
   "scripts": {
     "test": "node test/driver.test.mjs"
   },
-  "keywords": [
-    "webusb",
-    "ch340",
-    "ch341",
-    "serial",
-    "android",
-    "web-serial",
-    "usb-serial"
-  ],
+  "keywords": ["webusb", "web-serial", "ch340", "ch341", "usb-serial", "android", "serial", "otg", "cp210x", "ftdi", "pl2303"],
+  "repository": { "type": "git", "url": "git+https://gitea.truestudio.cn/jiangchen/ch340-webusb.git" },
+  "homepage": "https://gitea.truestudio.cn/jiangchen/ch340-webusb",
+  "bugs": { "url": "https://gitea.truestudio.cn/jiangchen/ch340-webusb/issues" },
+  "engines": { "node": ">=18" },
   "license": "MIT"
 }
diff --git a/test/driver.test.mjs b/test/driver.test.mjs
index 86b0182..b84b340 100644
--- a/test/driver.test.mjs
+++ b/test/driver.test.mjs
@@ -255,6 +255,38 @@ await t('DTR/RTS 控制（CH340 走 0xA4 取反写入）', async () => {
   await port.close();
 });
 
+await t('CP210x / FTDI / PL2303 的 DTR/RTS 编码', async () => {
+  // CP210x: vendor/interface req 0x07, value = 0x0300 | (DTR|RTS)
+  const cp = new MockDevice({ vendorId: 0x10c4, productId: 0xea60 });
+  const cport = api.fromDevice(cp, {});
+  await cport.open({ baudRate: 115200 });
+  cp.control.length = 0;
+  await cport.setSignals({ dataTerminalReady: true, requestToSend: true });
+  eq(cp.control, [['out', 'vendor', 'interface', 0x07, 0x0303, 0, null]]);
+  cp.control.length = 0;
+  await cport.setSignals({ dataTerminalReady: false, requestToSend: false });
+  eq(cp.control, [['out', 'vendor', 'interface', 0x07, 0x0300, 0, null]]);
+  await cport.close();
+
+  // FTDI: vendor/device req 0x01, index = controlInterface+1, value = 0x0300 | (DTR|RTS)
+  const ft = new MockDevice({ vendorId: 0x0403, productId: 0x6001 });
+  const fport = api.fromDevice(ft, {});
+  await fport.open({ baudRate: 115200 });
+  ft.control.length = 0;
+  await fport.setSignals({ dataTerminalReady: true, requestToSend: false });
+  eq(ft.control, [['out', 'vendor', 'device', 0x01, 0x0301, 1, null]]);
+  await fport.close();
+
+  // PL2303: class/interface req 0x22, value = bit0 DTR | bit1 RTS
+  const pl = new MockDevice({ vendorId: 0x067b, productId: 0x2303, deviceClass: 0x02 });
+  const pport = api.fromDevice(pl, {});
+  await pport.open({ baudRate: 115200 });
+  pl.control.length = 0;
+  await pport.setSignals({ requestToSend: true, dataTerminalReady: false });
+  eq(pl.control, [['out', 'class', 'interface', 0x22, 0x0002, 0, null]]);
+  await pport.close();
+});
+
 await t('关闭：释放接口 + 关闭设备（CDC 会先 shutdown）', async () => {
   const dev = new MockDevice();
   const port = api.fromDevice(dev, {});