Re: [Ftdi-usb-sio-devel] Problem with an FT232R chip

[Craig V. D. <cr...@yo...>]

Bill,

I am not sure I have the information you need, but I have written about 
communication with a DLP-2232PB-G that uses a FT2232C chip.  See if what I 
have at

http://yosemitefoothills.com/Electronics/FT2232C-based_projects.html
http://yosemitefoothills.com/Electronics/USBProgrammingSummary.html
http://yosemitefoothills.com/Electronics/FOSUG.html

Might be helpful.  Especially note how the O_ASYNC flag is set for the read() 
function and the use of select().

Craig Van Degrift


On Thursday 27 September 2007 05:40:53 bill purvis wrote:
> Hi,
> I'm not too well up on the workings of USB, so forgive my ignorance.
> I've recently putchased a microcontroller which has an FT232R as
> an interface chip. Plugging it into my system, using the 2.6.8.1 kernel
> activates the /dev/ttyUSB00 port and I can open it OK using minicom.
> I get no response from the controller, though. The controller works
> fine on a Windows box using a proprietary terminal emulator provided
> with the device. I have tried downloading the ftdi_sio module source
> from the FTDI web site but it won't compile with my kernel sources.
> I next tried downloading the latest kernel sources from www.kernel.org
> and tried configuring and compiling that. Despite a full search through
> the config options I can't find anything to turn on compilation
> of ftdi_sio.c - the source is there, the requisite #define is missing
> from .config.
> Anyone have any suggestions as to where I go next?
>
> Bill