I found a cardbus ethernet controller laying around which seems to be unsupported, in as much as only the host bus cbb device is reported in dmesg when the card is inserted.
Searching the archives, nobody seems very interested in cardbus devices and there hasn't been much relevant discussion for years. Any ideas? OpenBSD 5.8 (GENERIC) #0: Sat Nov 21 14:48:14 GMT 2015 r...@saturn.lan:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel(R) Celeron(R) M processor 1.50GHz ("GenuineIntel" 686-class) 1.50 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,PBE,PERF real mem = 1600536576 (1526MB) avail mem = 1557299200 (1485MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: date 02/07/06, BIOS32 rev. 0 @ 0xfd4b0, SMBIOS rev. 2.31 @ 0xdc010 (32 entries) bios0: vendor Phoenix Technologies LTD version "V1.09" date 02/07/2006 bios0: Acer Aspire3610 acpi0 at bios0: rev 0 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP APIC BOOT MCFG SSDT SSDT acpi0: wakeup devices LID0(S3) SLPB(S3) USB1(S3) USB2(S3) USB3(S3) USB4(S3) USB7(S3) LANB(S5) MODM(S3) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 99MHz ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins ioapic0: misconfigured as apic 0, remapped to apid 1 acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (PEGP) acpiprt2 at acpi0: bus 6 (PCIB) acpiec0 at acpi0 acpicpu0 at acpi0: !C3(250@85 io@0x1015), !C2(500@1 io@0x1014), C1(1000@1 halt) acpitz0 at acpi0: critical temperature is 100 degC acpitz1 at acpi0: critical temperature is 70 degC acpibtn0 at acpi0: LID0 acpibtn1 at acpi0: SLPB acpibat0 at acpi0: BAT0 model "Bat 8Cell" serial 32281 type LION oem "ace" acpiac0 at acpi0: AC unit online acpivideo0 at acpi0: GFX0 bios0: ROM list: 0xc0000/0xf200! 0xdc000/0x4000! 0xe0000/0x4000! pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel 82915GM Host" rev 0x03 vga1 at pci0 dev 2 function 0 "Intel 82915GM Video" rev 0x03 intagp0 at vga1 agp0 at intagp0: aperture at 0xc0000000, size 0x10000000 inteldrm0 at vga1 drm0 at inteldrm0 drm: fixme: max PWM is zero inteldrm0: 1280x800 wsdisplay0 at vga1 mux 1: console (std, vt100 emulation) wsdisplay0: screen 1-5 added (std, vt100 emulation) "Intel 82915GM Video" rev 0x03 at pci0 dev 2 function 1 not configured uhci0 at pci0 dev 29 function 0 "Intel 82801FB USB" rev 0x03: apic 1 int 23 uhci1 at pci0 dev 29 function 1 "Intel 82801FB USB" rev 0x03: apic 1 int 17 uhci2 at pci0 dev 29 function 2 "Intel 82801FB USB" rev 0x03: apic 1 int 18 uhci3 at pci0 dev 29 function 3 "Intel 82801FB USB" rev 0x03: apic 1 int 19 ehci0 at pci0 dev 29 function 7 "Intel 82801FB USB" rev 0x03: apic 1 int 23 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb0 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xd3 pci1 at ppb0 bus 6 ath0 at pci1 dev 5 function 0 "Atheros AR2413" rev 0x01: apic 1 int 21 ath0: AR2413 7.8 phy 4.5 rf 5.6 eeprom 5.2, WOR3W, address 00:14:a4:85:f1:bf rl0 at pci1 dev 7 function 0 "Realtek 8139" rev 0x10: apic 1 int 20, address 00:0a:e4:e7:6b:da rlphy0 at rl0 phy 0: RTL internal PHY cbb0 at pci1 dev 9 function 0 "ENE CB-1410 CardBus" rev 0x01: apic 1 int 22, CardBus support disabled cardslot0 at cbb0 slot 0 flags 0 pcmcia0 at cardslot0 auich0 at pci0 dev 30 function 2 "Intel 82801FB AC97" rev 0x03: apic 1 int 21, ICH6 AC97 ac97: codec id 0x414c4760 (Avance Logic ALC655 rev 0) audio0 at auich0 ichpcib0 at pci0 dev 31 function 0 "Intel 82801FBM LPC" rev 0x03: PM disabled pciide0 at pci0 dev 31 function 1 "Intel 82801FB IDE" rev 0x03: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility wd0 at pciide0 channel 0 drive 0: <ST980829A> wd0: 16-sector PIO, LBA48, 76319MB, 156301488 sectors atapiscsi0 at pciide0 channel 0 drive 1 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <PHILIPS, DVD+-RW SDVD8441, PX41> ATAPI 5/cdrom removable wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 cd0(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 2 pciide0: channel 1 ignored (disabled) ichiic0 at pci0 dev 31 function 3 "Intel 82801FB SMBus" rev 0x03: apic 1 int 17 iic0 at ichiic0 spdmem0 at iic0 addr 0x50: 1GB DDR2 SDRAM non-parity PC2-4200CL4 SO-DIMM spdmem1 at iic0 addr 0x52: 512MB DDR2 SDRAM non-parity PC2-3200CL5 SO-DIMM usb1 at uhci0: USB revision 1.0 uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb2 at uhci1: USB revision 1.0 uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci2: USB revision 1.0 uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci3: USB revision 1.0 uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at ichpcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) wsmouse0 at pms0 mux 0 pms0: Synaptics touchpad, firmware 6.2 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on wd0a (3c339ffd90931f05.a) swap on wd0b dump on wd0b 06:09.0 CardBus bridge: ENE Technology Inc CB1410 Cardbus Controller (rev 01) Subsystem: Acer Incorporated [ALI] Device 006a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 64, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 255 Region 0: Memory at b0111000 (32-bit, non-prefetchable) Bus: primary=00, secondary=00, subordinate=00, sec-latency=32 Memory window 0: fffff000-00000fff (prefetchable) Memory window 1: fffff000-00000fff (prefetchable) I/O window 0: 0000fffc-00000003 I/O window 1: 0000fffc-00000003 BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+ 16-bit legacy interface ports at 0001 Capabilities: [a0] Power Management version 1 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Bridge: PM- B3+ -- Tati Chevron Perl and FORTRAN specialist. 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