Adding Ch375 dll64 access on windows #89
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This is a follow up of #54 and refered to dual-driver backend of https://github.com/ch32-rs/wlink/blob/217f0e5136892ffcc6a80204a601bc1b62159505/src/usb_device.rs#L161-L168
It changed
device_handle
fromDeviceHandle<rusb::Context>
toOption<DeviceHandle<rusb::Context>>
. So it can be none when using CH375 driver. When compiled on win64,ch375_index
stores the device index.On win64, it will first try to use CH375 backend, then try libusb if unsuccessful.
It has been tested on Win10 with both CH375 and WinUSB driver, and Mac OS 14.7 on M2.
This is my first rust code and hopefully the code quality is OK.