ASMC_KEY_CLWK
if (apple_smc_key_getinfo(dev, ASMC_KEY_CLWK, NULL, NULL) == 0)
if (apple_smc_key_read(dev, ASMC_KEY_CLWK, buf, 2) != 0)
error = apple_smc_key_check_writable(dev, ASMC_KEY_CLWK);
if (apple_smc_key_write(dev, ASMC_KEY_CLWK, buf, 2) != 0)
if (apple_smc_key_read(dev, ASMC_KEY_CLWK, buf, 2) == 0) {
return (apple_smc_key_write(dev, ASMC_KEY_CLWK,