Man page 9 : dmi_first_match

dmi_first_match - find dmi_system_id structure matching system DMI data

const struct dmi_system_id * dmi_first_match(const struct dmi_system_id *  list );

list
    array of dmi_system_id structures to match against All non-null elements of the list must match their slotAqs (field indexAqs) data (i.e., each list string must be a substring of the specified DMI slotAqs string data) to be considered a successful match.

Walk the blacklist table until the first match is found. Return the pointer to the matching entry or NULL if thereAqs no match.