HIDKBDTRACESIZE
struct hidkbdtraceinfo hidkbdtracedata[HIDKBDTRACESIZE];
for (i = 0; i < HIDKBDTRACESIZE; i++) {
&hidkbdtracedata[(i+hidkbdtraceindex)%HIDKBDTRACESIZE];
if (++hidkbdtraceindex >= HIDKBDTRACESIZE)