Re: [Ftdi-usb-sio-devel] Resetting the FTDI

[Chris S. <chr...@ya...>]

--- On Sun, 11/21/10, Michael Plante <mic...@gm...> wrote:
> How many transfers did you typically have scheduled at a
> time?

Michael, just one:

for ()
{
  tc = ftdi_read_data_submit();

  ftdi_write_data()

  ftdi_transfer_data_done(tc);

}

However, your implication that multiple reads would help got me excited.  Unfortunately, however, libftdi-1 only allows one outstanding read submission.  This is because all read submissions ultimately go into the same "global" buffer within libftdi.  However, I will look into using libusb and handling the transfers myself in the hopes I can improved latency over ftdi_sio.  (There is also something called a libftdi streaming read -- I'm not sure what that is yet.)

Thank you for your help and patience,

Chris