vladistan / gnu.io.android Goto Github PK

I tried to compile, but failed!

Hi, thanks for your work.
I compiled successfully your code but when I try to connect to ttyACM0 i've got this error:

I/GNU.IO ( 1428): JNI_OnLoad called.
I/GNU.IO ( 1428): Testing the version.
I/GNU.IO ( 1428): entering RXTXCommDriver:getDeviceDirectory
I/GNU.IO ( 1428): TestREAD.
I/GNU.IO ( 1428): /dev/ttyUSB3
I/GNU.IO ( 1428): entering RXTXPort:testRead
I/GNU.IO ( 1428): testRead() open failed
I/GNU.IO ( 1428): leaving RXTXPort:testRead
I/GNU.IO ( 1428): TestREAD.
I/GNU.IO ( 1428): /dev/ttyUSB4
I/GNU.IO ( 1428): entering RXTXPort:testRead
I/GNU.IO ( 1428): testRead() open failed
I/GNU.IO ( 1428): leaving RXTXPort:testRead
I/GNU.IO ( 1428): TestREAD.
I/GNU.IO ( 1428): /dev/ttyACM0
I/GNU.IO ( 1428): entering RXTXPort:testRead
I/GNU.IO ( 1428): testRead() open failed
I/GNU.IO ( 1428): leaving RXTXPort:testRead
I/GNU.IO ( 1428): entering RXTXCommDriver:getDeviceDirectory
I/GNU.IO ( 1428): TestREAD.
I/GNU.IO ( 1428): /dev/ttyUSB3
I/GNU.IO ( 1428): entering RXTXPort:testRead
I/GNU.IO ( 1428): testRead() open failed
I/GNU.IO ( 1428): leaving RXTXPort:testRead
I/GNU.IO ( 1428): TestREAD.
I/GNU.IO ( 1428): /dev/ttyUSB4
I/GNU.IO ( 1428): entering RXTXPort:testRead
I/GNU.IO ( 1428): testRead() open failed
I/GNU.IO ( 1428): leaving RXTXPort:testRead
I/GNU.IO ( 1428): TestREAD.
I/GNU.IO ( 1428): /dev/ttyACM0
I/GNU.IO ( 1428): entering RXTXPort:testRead
I/GNU.IO ( 1428): testRead() open failed
I/GNU.IO ( 1428): leaving RXTXPort:testRead

How can I fix this?

Cheers
Giorgio

Hi,

I made a diff between the actual RxTx lib and your version, and i don't see any modification except for the deletion of the parallel port (if i remember correctly) and the modification of a line to add /dev/.

I use the official rxtx lib and if i remember correctly, unix systems are already supported (with /dev/).

So my question is: what did you do?

Hi,
my android device has RS232 com port(not USB to RS232),and Android-serialport-api can work in my deivce,I compile the source success,but the GNUIOtest.apk Always display "Can't find USB Serial Port",
How do I Modify the source to Connect ttyS0?
and in the source "CommPortIdentifier.getPortIdentifiers();" is return new CommPortEnumerator() ,the result is portIdentifiers always have not any Elements;the app can not find any port?
thank you very much!

Hi,

i am trying to add RS485 support.

to do that, i need to understand how you modified the RxTx lib. I see that you modified 3 or 4 files to make it work on Android (mainly the log functions, and some conf for the path to the device, ...).

What i don't get is how you generated the gnu_io_***.h files. Can you give me some hints? Plus, how do you compile the whole thing afterwards?