SCAN_PREFIX_CTL
SCAN_PREFIX_CTL | SCAN_PREFIX_SHIFT)
scancode = 0x45 | SCAN_PREFIX_E1 | SCAN_PREFIX_CTL;
if (key & SCAN_PREFIX_CTL) {
code = (0x45 | SCAN_PREFIX_E1 | SCAN_PREFIX_CTL);
if (code & SCAN_PREFIX_CTL) {
SCAN_PREFIX_CTL | SCAN_PREFIX_SHIFT)
code = (0x45 | SCAN_PREFIX_E1 | SCAN_PREFIX_CTL);
if (code & SCAN_PREFIX_CTL) {
SCAN_PREFIX_CTL | SCAN_PREFIX_SHIFT)