i8042_send
i8042_send(global, I8042_CMD, I8042_CMD_WCB);
i8042_send(global, I8042_DATA, cb);
i8042_send(global, I8042_CMD, I8042_CMD_WRITE_AUX);
i8042_send(global, I8042_DATA, value);
static void i8042_send(struct i8042 *global, int reg, unsigned char cmd);