usb serial programming

[Sudip Mukherjee]

On Mon, Jul 21, 2014 at 8:49 AM, Amadeus W.M. <amadeus84 at verizon.net> wrote:
> Not sure if this is the right venue for this question, please direct me to
> the right place if it's not.
>
> I have a C program that opens the serial port /dev/ttyS0 and sends commands
> (as strings) back and forth to a pan-tilt-zoom camera. That works very well,
> but I want to use the camera with a Raspberry Pi, which of course does not
> have a serial port (RS232). One option is to use a RS232 to usb adapter and
> rewrite the C code for the usb port. So how do I go about that? Is
> usb serial port programming possible and documented anywhere?

Raspberry PI is not having a dedicated serial port but GPIO14 and
GPIO15 are the Rx and Tx pins , so you can just connect a max3232 to
have a serial port .