giapdangle / android-ftdi-usb2serial-driver-package Goto Github PK

What steps will reproduce the problem?
1. Compile and run Rev 78 
2. Click to "PORT CONFIG"
3. Click to "Main"

What is the expected output? What do you see instead?
NullPointerException, the app closes.

What version of the product are you using? On what operating system?
Asus Transformer 101, Android 4.0.3

Please provide any additional information below.

The NullPointer Exception happens at    mApp.setSerialPortConfigSelections. It 
looks like the HashTables are not filled correctly, due to wrong string 
comparisons (== instead of .equals()).

What steps will reproduce the problem?
I have an Ainol Aurora running ICS 4.0.3 - the OTG USB mode work for bluetooth 
devices but it doesn't detect an FT232RL chip on several different Arduino 
boards.


What is the expected output? What do you see instead?
Doing a device refresh says no FTDI chips are detected


What version of the product are you using? On what operating system?
Checked out today, Android 4.0.3


Please provide any additional information below.
Does there need to be a lower level driver installed for this to work?

I connect an FTDI 232RL to an Asus Transformer Prime TF201.

Two endpoints are seen:
#0: address=0x81, direction=0x80
#1: address=0x02, direction=0x0

According to FTDI_Constants.java, INTERFACE_A_ENDPOINT_IN=0x02, and 
INTERFACE_A_ENDPOINT_OUT=0x81. These constants, combined with the constants 
UsbConstants.USB_DIR_IN=0x80 and UsbConstants.USB_DIR_OUT=0x0, make the 
endpoint detection in FTDI_Interface.java:initInterface() to fail to initialize 
the interface.

Are the FTDI_Constants.INTERFACE_A_ENDPOINT_* wrong? Or is the endpoint 
detection code wrong?

I was receiving a null pointer error as getDeviceDescriptor() was called before 
mUsbDevice was set. I have now addressed that, however 
if(!mManager.hasPermission(mUsbDevice)) in getDeviceDescriptor() is returning 
false. 

Does the code provide for permission to be granted? I am a newbie and have seen 
some code to do this on the android site but am unsure how to implement it.  
Many thanks. 

After correction the bad string comparison and the inversion of endpoints and 
modification of the manifest to allow the use of hardware.usb.accessory, I 
discovered that FTDI_SerialPort.open() was never called.

I added a connectSerialPort to the SandboxAppActivity and linked it to the 
connect button of the terminal.

The call to mFTDI_Interface.SetBitMaskBitMode(mBitMask, mBitMode) fails on a 
single port converter (0403/6001) plugged to an Asus Transformer.

The other USB control messages succeed.

Would it be possible to add support for PL2303 USB to serial devices to your 
library? I found some sourcecode for PL2303 devices in this project:
https://code.google.com/p/indiserver/source/browse/INDIserver/branches/version2#
version2%2Fsrc%2Fde%2Fhallenbeck%2Findiserver%2Fcommunication_drivers