sibo-playground/code/inventory/scan.c

/*
 * scan.c - Phase 1 barcode diagnostic: keyboard / scan-key route.
 *
 * A working on-device demo triggers the laser from the keyboard scan key, so
 * the system arms the scanner and delivers the decode via the scan-key path -
 * not via an app-opened TTY:D or BAR: channel (both of which gave us nothing).
 * This build opens NOTHING and simply reads the keyboard, echoing every key
 * code. If the decoded barcode is injected as keystrokes (a "wedge"), it will
 * appear here.
 *
 * Test order:
 *   1. Press normal keys ('1' = 49, '2' = 50, ...) to confirm the read works.
 *   2. Press the scan key and scan a barcode - watch for the digits.
 * Esc (27) quits.
 */
#include <plib.h>

GLDEF_C INT main(VOID)
{
    INT c, cnt;

    p_printf("Keyboard/scan-key test.\n");
    p_printf("Press keys; press the scan key and scan a barcode.\n");
    p_printf("Esc (27) quits.\n\n");

    cnt = 0;
    for (;;) {
        c = p_getch();
        cnt++;
        p_printf(" %d", c);
        if (c == 13 || c == 10)
            p_printf(" <EOL>\n");
        if (c == 27)
            break;
    }

    p_printf("\n%d keys read.\n", cnt);
    return 0;
}