# ioctl-napi

> napi ioctl

Latest version **0.3.0** (published 2019-10-30) · 0 weekly downloads

## Install

```sh
npm install ioctl-napi
pnpm add ioctl-napi
yarn add ioctl-napi
bun add ioctl-napi
```

## Health

**Score 15/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support; pre 1.0.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 0.3.0 |
| Published | 2019-10-30 |
| First published | 2019-10-21 |
| Weekly downloads | 0 |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 1 |
| Unpacked size | 9.3 KB |
| Known vulnerabilities | 0 |
| Install scripts | yes |
| GitHub stars | 1 |
| Author | Jorge Garza |
| Maintainers | jgarzagu |
| Keywords | ioctl, napi |

## Links

- npm: https://www.npmjs.com/package/ioctl-napi
- Repository: https://github.com/Guardado/ioctl-napi/tree/master#ioctl-napi
- Issues: https://github.com/Guardado/ioctl-napi/issues
- npm.io page: https://npm.io/package/ioctl-napi

## Dependencies (1)

- [bindings](https://npm.io/package/bindings.md) ~1.5.0

## Recent versions

- 0.3.0 (latest) — 2019-10-30
- 0.2.5 — 2019-10-21
- 0.2.0 — 2019-10-21
- 0.1.0 — 2019-10-21

## README

# ioctl-napi
ioctl using N-API for the linuxduino library. 

# Usage

```
npm install ioctl-napi
```

# Example 

```js
// Get current serial configuration
// Use: sudo node example.js
var fs = require("fs");
var ioctl = require("ioctl-napi");

try {
  var fd = fs.openSync("/dev/ttyUSB0", fs.constants.O_RDWR);
} catch (e) {
  console.log("Error opening Serial:", e);
  return;
}
console.log("Success opening serial!!");

var TCGETS = 0x5401;
//struct termios
// {
//  tcflag_t c_iflag;   // uint (4 bytes)
//  tcflag_t c_oflag;   // uint (4 bytes)
//  tcflag_t c_cflag;   // uint (4 bytes)
//  tcflag_t c_lflag;   // uint (4 bytes)
//  cc_t c_line;        // uchar (1 byte)
//  cc_t c_cc[NCCS];    // uchar (32 bytes)
//  speed_t __c_ispeed; // uint (4 bytes)
//  speed_t __c_ospeed; // uint (4 bytes)
// }; // Total = 57 bytes
var termios = Buffer.alloc(57);

try {
  var ret = ioctl(fd, TCGETS, termios);
} catch (e) {
  console.log("ioctl error: ", e);
  return;
}

console.log("termios buffer:", termios);
var c_iflag = Buffer.from(termios.buffer, 0, 4);
var c_oflag = Buffer.from(termios.buffer, 4, 4);
var c_cflag = Buffer.from(termios.buffer, 8, 4);
var c_lflag = Buffer.from(termios.buffer, 12, 4);
var c_line = Buffer.from(termios.buffer, 16, 1);
var c_cc = Buffer.from(termios.buffer, 17, 32);
var c_ispeed = Buffer.from(termios.buffer, 49, 4);
var c_ospeed = Buffer.from(termios.buffer, 53, 4);

console.log("c_iflag:", c_iflag);
console.log("c_oflag:", c_oflag);
console.log("c_cflag:", c_cflag);
console.log("c_lflag:", c_lflag);
console.log("c_line:", c_line);
console.log("c_cc:", c_cc);
console.log("c_ispeed:", c_ispeed);
console.log("c_ospeed:", c_ospeed);
```

---
_Source: https://npm.io/package/ioctl-napi · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._