Apple

On Oct 19, 2005, at 6:08 AM, Anshul wrote:

Hello all,

    We have to implement parallel port data transfer/communication using our mac. But on mac there is no provision of parallel port.. So, we are planning to use USB to parallel port adapter that can provide us with a parallel interface for communication .



    But , the problem is we are not getting any clue regarding how to go about to access (read and write ) the parallel port ? How to create an interface to open the parallel port ?

    For serial port we can set up the interface(service matching , creating dictionary etc. ) and open the the port using the key value pairs like KIOSerialBSDServiceValue etc . But how to go about to access the parallel port as we dont have any kind of OS support for parallel port.

    If you have any idea about how to proceed or if you have any reference link do share it with us. Any help will be greatly appreciated.

Any parallel adapter that will work on the Mac will have to include a Mac driver, unless the adapter is implemented as a comms class device. If there's a Mac driver with the product, there should also be documentation on how to use the driver from an application.

If the device is a comms class device, you should be able to treat the device like a serial port. The example SerialPortSample <http://developer.apple.com/samplecode/SerialPortSample/SerialPortSample.html> should be helpful in that case.

Regards,

--gc

__________________________________________________________________

Garth Cummings

Apple Developer Technical Support email@hidden

http://developer.apple.com/technicalsupport

References:
	>parallel port communication on mac (From: Anshul <email@hidden>)