ftd2xx

library1.3.8pypypiunverified

A Python interface to FTDI's D2XX driver (ftd2xx.dll on Windows, libftd2xx on Linux/macOS) using ctypes. Currently at v1.3.8, with a relatively stable release cadence. Compatible with Python >=3.8.

serialization

pip install ftd2xx

github ↗package ↗docs ↗

INSTALL

IMPORT

SIG · FTD2XX

ftd2xx

serializationpythonv1.3.8

Install

1.5s avg

Import

—

Disk

16MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v1.3.8 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.000s · 18.1MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.5s · import 0.000s · 19MB

16MB installed

● package 16MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

ftd2xx

✓ import ftd2xx

✗ import ftd2xx

Basic usage: list, open, reset, read/write, and close a device.

import ftd2xx # List connected devices device_count = ftd2xx.createDeviceInfoList() print(f"Found {device_count} device(s)") # Open first device by serial number (or index) try: dev = ftd2xx.open(0) print(f"Opened device: {dev.description}") # Reset and set bit mode to reset default dev.reset() dev.setBitMode(0, 0) # Write data dev.write(b"Hello FTDI") # Read data data = dev.read(100) print(f"Read: {data}") dev.close() except ftd2xx.DeviceError as e: print(f"Error: {e}")

Debug

Known issues

gotchaopen() and openEx() by default call createDeviceInfoList which can be slow on some systems. Use update=False to avoid this when you don't need device info.

fix

dev = ftd2xx.open(0, update=False)

affects: >=1.3.0

gotchaOn Linux, you may need to install libftd2xx separately and configure udev rules for non-root access. Otherwise you'll get a 'Failed to open device' error.

fix

Install libftd2xx from FTDI's website and add udev rule: SUBSYSTEM=="usb", ATTRS{idVendor}=="0403", MODE="0666"

affects: all

deprecatedThe older d2xx library (by Pablo Bleyer) was renamed to ftd2xx. Importing from d2xx is deprecated and will break.

fix

Use 'import ftd2xx' instead of 'import d2xx'

affects: >=1.0.0

Upgrade

Version history

1.3.8latest on PyPI · released Jun 25, 2024

Audit

Dependencies

No dependency data recorded yet.

Agent activity

7 hits · last 30 days

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Resources

githubhttps://github.com/ftd2xx/ftd2xx ↗

packagehttps://pypi.org/project/ftd2xx/ ↗

docshttps://ftd2xx.github.io/ftd2xx/ ↗