PS2_FLAG_CMD
ps2dev->flags = PS2_FLAG_CMD;
!(ps2dev->flags & PS2_FLAG_CMD),
ps2dev->flags |= PS2_FLAG_CMD | PS2_FLAG_CMD1;
!(ps2dev->flags & PS2_FLAG_CMD), timeout);
ps2dev->flags &= ~PS2_FLAG_CMD;
if (old_flags & (PS2_FLAG_ACK | PS2_FLAG_CMD))
else if (ps2dev->flags & PS2_FLAG_CMD)