Hi, my X240 has 2 USB3.0 ports. I use one of them to connect a urtwn(4) usb wifi dongle since the internal intel wifi is not (yet) supported.
After the recent commit to enable xhci, I tried to switch the BIOS USB3 support mode from 'disabled' to 'auto'. This make urtwn0 attach to the xhci hub, but it doesn't work (device timeout). See dmesg below. detaching and re-attaching it doesn't make a difference. OpenBSD 5.6-current (GENERIC.MP) #44: Sun Nov 9 14:41:25 CET 2014 matth...@nebraska.herrb.net:/usr/obj/GENERIC.MP real mem = 8246276096 (7864MB) avail mem = 8022933504 (7651MB) warning: no entropy supplied by boot loader mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xdcd3d000 (60 entries) bios0: vendor LENOVO version "GIET73WW (2.23 )" date 04/10/2014 bios0: LENOVO 20ALCTO1WW acpi0 at bios0: rev 2 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP SLIC DBGP ECDT HPET APIC MCFG SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT PCCT SSDT TCPA UEFI MSDM ASF! BATB FPDT UEFI SSDT DMAR acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP2(S4) XHCI(S3) EHC1(S3) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpiec0 at acpi0 acpihpet0 at acpi0: 14318179 Hz acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.71 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM cpu0: 256KB 64b/line 8-way L2 cache cpu0: smt 0, core 0, package 0 mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges cpu0: apic clock running at 99MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.38 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM cpu1: 256KB 64b/line 8-way L2 cache cpu1: smt 1, core 0, package 0 cpu2 at mainbus0: apid 2 (application processor) cpu2: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.38 MHz cpu2: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM cpu2: 256KB 64b/line 8-way L2 cache cpu2: smt 0, core 1, package 0 cpu3 at mainbus0: apid 3 (application processor) cpu3: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.38 MHz cpu3: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM cpu3: 256KB 64b/line 8-way L2 cache cpu3: smt 1, core 1, package 0 ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 40 pins acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (PEG_) acpiprt2 at acpi0: bus 2 (EXP1) acpiprt3 at acpi0: bus 3 (EXP2) acpiprt4 at acpi0: bus -1 (EXP3) acpicpu0 at acpi0: C3, C1, PSS acpicpu1 at acpi0: C3, C1, PSS acpicpu2 at acpi0: C3, C1, PSS acpicpu3 at acpi0: C3, C1, PSS acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1 acpitz0 at acpi0: critical temperature is 200 degC acpibtn0 at acpi0: LID_ acpibtn1 at acpi0: SLPB acpibat0 at acpi0: BAT0 model "45N1773" serial 16792 type LION oem "SANYO" acpibat1 at acpi0: BAT1 model "45N1738" serial 3066 type LION oem "LGC" acpiac0 at acpi0: AC unit online acpithinkpad0 at acpi0 cpu0: Enhanced SpeedStep 1995 MHz: speeds: 2701, 2700, 2600, 2400, 2300, 2100, 2000, 1800, 1700, 1600, 1400, 1300, 1100, 1000, 800, 756 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel Core 4G Host" rev 0x0b vga1 at pci0 dev 2 function 0 "Intel HD Graphics" rev 0x0b intagp at vga1 not configured inteldrm0 at vga1 drm0 at inteldrm0 drm: Memory usable by graphics device = 2048M error: [drm:pid0:i915_write32] *ERROR* Unknown unclaimed register before writing to 100000 error: [drm:pid0:intel_dp_set_link_train] *ERROR* Timed out waiting for DP idle patterns error: [drm:pid0:i915_write32] *ERROR* Unknown unclaimed register before writing to 64040 inteldrm0: 1366x768 wsdisplay0 at vga1 mux 1: console (std, vt100 emulation) wsdisplay0: screen 1-5 added (std, vt100 emulation) azalia0 at pci0 dev 3 function 0 "Intel Core 4G HD Audio" rev 0x0b: msi azalia0: No codecs found xhci0 at pci0 dev 20 function 0 "Intel 8 Series xHCI" rev 0x04: msi usb0 at xhci0: USB revision 3.0 uhub0 at usb0 "Intel xHCI root hub" rev 3.00/1.00 addr 1 "Intel 8 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured puc0 at pci0 dev 22 function 3 "Intel 8 Series KT" rev 0x04: ports: 1 com com4 at puc0 port 0 apic 2 int 17: ns16550a, 16 byte fifo com4: probed fifo depth: 0 bytes em0 at pci0 dev 25 function 0 "Intel I218-LM" rev 0x04: msi, address 28:d2:44:80:83:15 azalia1 at pci0 dev 27 function 0 "Intel 8 Series HD Audio" rev 0x04: msi azalia1: codecs: Realtek ALC292 audio0 at azalia1 ppb0 at pci0 dev 28 function 0 "Intel 8 Series PCIE" rev 0xe4: msi pci1 at ppb0 bus 2 rtsx0 at pci1 dev 0 function 0 "Realtek RTS5227 Card Reader" rev 0x01: msi sdmmc0 at rtsx0 ppb1 at pci0 dev 28 function 1 "Intel 8 Series PCIE" rev 0xe4: msi pci2 at ppb1 bus 3 "Intel Dual Band Wireless AC 7260" rev 0x83 at pci2 dev 0 function 0 not configured ehci0 at pci0 dev 29 function 0 "Intel 8 Series USB" rev 0x04: apic 2 int 23 usb1 at ehci0: USB revision 2.0 uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1 pcib0 at pci0 dev 31 function 0 "Intel 8 Series LPC" rev 0x04 ahci0 at pci0 dev 31 function 2 "Intel 8 Series AHCI" rev 0x04: msi, AHCI 1.3 scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 0 lun 0: <ATA, SAMSUNG MZ7TD256, DXT0> SCSI3 0/direct fixed naa.5002538500000000 sd0: 244198MB, 512 bytes/sector, 500118192 sectors, thin ichiic0 at pci0 dev 31 function 3 "Intel 8 Series SMBus" rev 0x04: apic 2 int 18 iic0 at ichiic0 spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-12800 SO-DIMM isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbdprobe: reset response 0x0 pms0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pms0 mux 0 wsmouse1 at pms0 mux 0 pms0: Synaptics clickpad, firmware 8.1 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 urtwn0 at uhub0 port 1 "Realtek 802.11n WLAN Adapter" rev 2.00/2.00 addr 2 urtwn0: MAC/BB RTL8188CUS, RF 6052 1T1R, address c4:a8:1d:81:0d:63 uhub0: device problem, disabling port 7 uvideo0 at uhub0 port 8 configuration 1 interface 0 "SunplusIT INC. Integrated Camera" rev 2.00/26.03 addr 3 video0 at uvideo0 uhub2 at uhub1 port 1 "Intel Rate Matching Hub" rev 2.00/0.04 addr 2 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 005> SCSI2 0/direct fixed sd1: 235839MB, 512 bytes/sector, 482999472 sectors root on sd1a (201dbc67447a4c28.a) swap on sd1b dump on sd1b xhci0: NULL xfer pointer urtwn0: device timeout xhci0: NULL xfer pointer -- Matthieu Herrb