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The parallel and serial port device file names are system specific.
MacOS has no default serial or parallel port names, but available
ports can be found under /dev/cu.*.
The following table lists the default names for a given system.
| System | Default Parallel Port | Default Serial Port |
| FreeBSD | /dev/ppi0 | /dev/cuad0 |
| Linux | /dev/parport0 | /dev/ttyS0 |
| Solaris | /dev/printers/0 | /dev/term/a |
On FreeBSD systems, AVRDUDE uses the ppi(4) interface for accessing the parallel port and the sio(4) driver for serial port access.
On Linux systems, AVRDUDE uses the ppdev interface for accessing the parallel port and the tty driver for serial port access.
On Solaris systems, AVRDUDE uses the ecpp(7D) driver for accessing the parallel port and the asy(7D) driver for serial port access.
This document was generated on July 19, 2023 using texi2html 5.0.