EcCommand
acpi_status = EcCommand(sc, EC_COMMAND_QUERY);
status = EcCommand(sc, EC_COMMAND_BURST_ENABLE);
if (EcCommand(sc, EC_COMMAND_BURST_DISABLE) == AE_OK)
status = EcCommand(sc, EC_COMMAND_READ);
acpi_status status = EcCommand(sc, EC_COMMAND_WRITE);
static acpi_status EcCommand(struct acpi_ec_cookie *sc, EC_COMMAND cmd);