hexio -- tools to access hardware

When working with hardware, we often need console access. Tools like minicom make that easy, but only if the interaction uses ASCII. This toolkit also works well if the input and/or output is hexadecimal.

download current version -- there currently is no version control of any kind, perhaps later?

Hexio consists of a number of independent utitilities that can be composed as filters. Plugging the right ones together makes it possible to access a bit of hardware just as needed, with much more flexibility than simply using a terminal emulator.

• inputter prints an offset since the start, and reads hexadecimal codes from stdin. It translates them into binary codes and passes them on to stdout.
• outputter does the opposite -- it collects binary input from stdin and prints it in hexadecimal notation, with offset since the start, on stdout.
• devio exchanges bytes with a typical Linux/Unix device; it reads from stdin and passes what it finds on to the device; what it reads from the device is sent out through stdout.
• llcio reads from stdin and passes what it finds out over LLC2; what it receives over LLC2 is passed out to stdout. It can be operated in server mode (when called with one MAC address and SAP) or client mode (when called with a double set of MAC and SAP).
• pcscio does not work yet but passes stdin to a PC/SC device, and what it receives in reply is passed out to stdout.