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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