compat.mtdev

// compat.mtdev — behavioral test, no input device required.
//
// mtdev translates kernel multitouch protocol A into protocol B. The test
// exercises the translator's own state machine rather than a device: the
// interesting failure is a package that links but whose slot machinery was
// compiled out, and that shows up here rather than on a touchscreen.

#ifdef __linux__

#include <mtdev.h>
#include <mtdev-plumbing.h>
#include <linux/input.h>

#include <cstdio>
#include <cstring>

namespace {
int failures = 0;
void check(bool ok, const char *what)
{
    std::printf("%-58s %s\n", what, ok ? "ok" : "FAILED");
    if (!ok) ++failures;
// …