Fix purge hw buffers + REQTYPE constants

anotherlab / UsbSerialForAndroid

A Xamarin C# port of the Java usb-serial-for-android library

MIT License

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Closed widavies closed 11 months ago

widavies commented 1 year ago

Per the usb-serial-for-android implementation I think there may be two issues that this pull requests fixes:

First, the FTDI PurgeHwBuffers lists RESET_PURGE_RX twice for both buffers. It should be _TX for the read buffer.
Secondly, it looks like the constants are swapped for REQTYPE_HOST_TO_DEVICE and REQTYPE_DEVICE_TO_HOST

https://github.com/mik3y/usb-serial-for-android/issues/518

anotherlab commented 1 year ago

@widavies Thank you for the PR. Can you include what hardware you tested this on?

widavies commented 11 months ago

I've tested on FTDI FT231X and FT232R UART