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Can anyone shed any light on these lines that I found in dmesg:- [13] acpi_wmi0: <ACPI-WMI mapping> on acpi0 [13] acpi_wmi0: cannot find EC device [13] acpi_wmi0: Embedded MOF found [15] hdac0: Unexpected unsolicited response from address 0: 00000000 [15] hdac0: Unexpected unsolicited response...

I cannot imagine that for strncasecmp the strings must be '\0' terminated, but the man page is not precise.