.TH "libnvme_first_subsystem" 9 "libnvme_first_subsystem" "September 2026" "libnvme API manual" LINUX .SH NAME libnvme_first_subsystem \- Start subsystem iterator .SH SYNOPSIS .B "struct libnvme_subsystem *" libnvme_first_subsystem .BI "(struct libnvme_host *h " ");" .SH ARGUMENTS .IP "h" 12 \fIstruct libnvme_host\fP object .SH "RETURN" first \fIstruct libnvme_subsystem\fP object in an iterator