On Fri, May 30, 2014 at 4:02 PM, Anders Larsen <[email protected]> wrote: > Hi, > > > On 2014-05-30 07:03, Xiaofan Chen wrote: >> >> On Thu, May 29, 2014 at 7:18 AM, Steve Soloski <[email protected]> >> wrote: >> > ftdi_set_interface(dev, INTERFACE_B); >> > ftdi_usb_open(dev, PICAM_USB_VID, PICAM_USB_PID); >> >> I believe you need to reverse the order of the previous two >> calls. You need to open the device and then set_interface. > > > no, the order is correct. > > With the order reversed ftdi_set_interface() errors out with: > "Interface can not be changed on an already open device" >
I see. I mixed it up with libusb where you need to open the device first. -- Xiaofan -- libftdi - see http://www.intra2net.com/en/developer/libftdi for details. To unsubscribe send a mail to [email protected]
