i'm trying to use the libftdi to write to a FT245R chip using the standard
protocol.
here is the main part of my code
///////////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include "ftdi.h"
int main(void)
{
struct ftdi_context ftdic;
// all declarations, intializization , etc..
if (ftdi_init(&ftdic) < 0)
{
fprintf(stderr, "ftdi_init failed\n");
return EXIT_FAILURE;
}
if ((ret = ftdi_usb_open(&ftdic, 0x0403, 0x6001)) < 0)
{
fprintf(stderr, "unable to open ftdi device: %d (%s)\n", ret,
ftdi_get_error_string(&ftdic));
return EXIT_FAILURE;
}
if ((ret = ftdi_write_data(&ftdic, outBuff, 34))<0)
{
printf("write failed ! \n\r");
}
else printf("#ofBytesWritten: %d\n\r",ret);
/////////////////////////////////////////////////////////////
I don't get any errors, but the ftdi_write_data function does not seem to
be having any results writing to the device.
I do seem to be able to connect & read from the device,
so i'm not sure what is wrong.
notice i'm merely including the ftdi files ,( #include "ftdi.h" )
as i have put them in the same directory as my main.
do i have to first install the libftdi for it to work correctly.
i'm running Ubuntu 9.04
linux 2.6.28-16-generic
thanks!
Howard
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libftdi - see http://www.intra2net.com/en/developer/libftdi for details.
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