asyncusb 0.0.1

Another async libusb wrapper.

asyncusb

The goal of this library is to be an efficient and pythonic asynchronous usb library written in pure python.

Here's an example that sends some data to a predetermined device endpoint.

import asyncio
from asyncusb.core import *

async def main():
    with Context() as ctx:
        devices = ctx.get_device_list()

        # Inspect device attributes and choose a device. We'll just take the
        # first device for the purposes of this example.
        dev = devices[0]

        async with dev.open() as handle:
            # Handle kernel drivers automatically.
            handle.set_auto_detach_kernel_driver(True)

            # Claim the interface for the duration of this with block. This
            # example assumes we're using interface 1.
            with handle.bind_interface(1):
                # Create and submit the transfer. This example assumes
                # we're just sending some data to endpoint 0x02.
                transfer = handle.fill_bulk_transfer(0x02, b'hello world!')
                transfer.submit()

                # Wait for transfer completion. If we don't, the dev.open()
                # context manager might cancel our transfer before it
                # finishes!
                await transfer.wait()

asyncio.run(main())

That's it! No manual resouce cleanup is required, as all cleanup is handled by the context managers.

Current Features:

• async event handling
• thread-safe transfer creation and submission
• automated resource handling
• Termux compatibility

Planned Features:

• async endpoint read/write streams