[root@opti ~]# kldstat -v | grep acpi
                15 nexus/acpi
                16 acpi/acpi_acad
                17 acpi/acpi_button
                18 acpi/acpi_cmbat
                19 acpi/cpu
                20 acpi/acpi_ec
                21 acpi/acpi_isab
                22 acpi/acpi_lid
                23 pcib/acpi_pci
                24 acpi/acpi_pci_link
                25 acpi/acpi_pcib
                26 pci/acpi_pcib
                27 cpu/acpi_perf
                28 acpi/acpi_sysresource
                29 acpi/acpi_smbat
                30 acpi/acpi_tz
                31 cpu/acpi_throttle
                32 acpi/acpi_timer
                286 acpi/fpupnp
                291 acpi/atpic
                293 acpi/attimer
                296 acpi/atdma
                303 acpi/atkbdc
                305 acpi/psmcpnp
                310 acpi/fdc
                317 acpi/ppc
                319 acpi/sio
[root@opti ~]#