Moschip Usb Parallel Port Drivers For Mac 
About Linux kernel, the default configuration has to be changed in order to remove the support for the ENET controller and to add the drivers required by the USB Ethernet adapter. The following files have to be modified before rebuilding the kernel:
Moschip Usb Parallel Port Drivers For Mac
The serial communication layer of libsigrok transparently supports most of the above HID chips.Those which are not supported by the serial layer can be supported by specific device drivers (Victor DMMs).
This cable is for connecting a printer with Centronics interface to the USB port of the PC or notebook. You can keep your parallel port free for a second printer, scanner or digital camera. The cable has a type A USB connector and a 36 pin Centronics plug with a transfer rate of 1,2 MB/s. The cable is bus powered.
BUT: the CNC control program needs a solid connection to the parallel port. It is usually controlling the parallel port with 25kHz update rate, however my windows does reach exactly 2kHz not more, not less.
Unfortunately, the Willem software only lets you pick from a hardcoded list of addresses to work with. The good news, however, is that it does its port access through a DLL called io.dll. There are replacement versions of io.dll that trick the Willem software into talking to a different parallel port address:
Operationally, the green EPROM LED comes on with power supply. Yellow PROG LED lights during PC boot (I assume when the computer is testing the parallel port for attached hardware) and when there is chip programming activity. I spent too much time diddling with the parallel port card and software while I had J4 jumper in wrong position, but figured it out just as I was running out of steam. 350c69d7ab