The mempcy@GLIBC_2.14 is called a versioned symbol. Glibc uses them while other runtime libraries like musl do not. The significance of mempcy@GLIBC_2.14 when compiling on Linux is due to Glibc changing the way memcpy worked back in 2012. memcpy used to copy bytes {begin → end} (low memory address to high memory address). Glibc 2.13 … Read more
I can really recommend the USB-Serial-For-Android library, it supports multiple popular usb-to-serial chips (also FTDI) and there is no rooting required. Check out the GitHub project here.
I think it might add some value for others facing similar issues in the future to elaborate a bit more on Rodney’s answer from a hardware side. Although I came here looking for the answer to the thread question (why was I getting an ioctl error trying to activate the RS485 mode on pyserial (which … Read more
I was trying to send data over the wrong baud rate. Here’s the code that works. Posting it for everyone who is using FTDI devices and needs help. private Runnable mLoop = new Runnable() { @Override public void run() { UsbDevice dev = sDevice; if (dev == null) return; UsbManager usbm = (UsbManager) getSystemService(USB_SERVICE); UsbDeviceConnection … Read more