xhci USB Host Controller resetting continously

Wed Mar 26 05:15:25 UTC 2014

Hi,

I recently updated my laptop, an Inspiron 17 7000, from
10.0-RELEASE/amd64 to 10.0-STABLE/amd 64 r263710. Unfortunately, this
revision results in a unusable USB sub-system, as the xhci host
controller is constantly resetting itself. I've attached the full
output of the dmesg at the end of this email, but the main resetting
cycle snippet is:

usb_alloc_device: set address 4 failed (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
ugen0.4: <Unknown> at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
ugen0.4: <ELAN> at usbus0
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
uhid0: <ELAN Touchscreen, class 0/0, rev 2.00/11.13, addr 4> on usbus0
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
uhub0: at usbus0, port 1, addr 1 (disconnected)
ugen0.2: <Logitech> at usbus0 (disconnected)
ums0: at uhub0, port 3, addr 1 (disconnected)
ugen0.3: <CNFDH20J4530100011M2> at usbus0 (disconnected)
ugen0.4: <ELAN> at usbus0 (disconnected)
uhid0: at uhub0, port 7, addr 4 (disconnected)
xhci0: 32 byte context size.
xhci0: Port routing mask set to 0xffffffff
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub0: 13 ports with 13 removable, self powered
ugen0.2: <Logitech> at usbus0
ums0: <Logitech USB Mouse, class 0/0, rev 1.10/6.20, addr 1> on usbus0
ums0: error reading report description
device_attach: ums0 attach returned 12
ugen0.3: <CNFDH20J4530100011M2> at usbus0
xhci0: Resetting controller

Would any developer be keen to help me resolve this issue? I'm willing
to try out any patches on this system so that I can get back a working
USB sub-system.

Cheers.
-- 
Jonathan Chen <jonc at chen.org.nz>

----dmesg-output----
Copyright (c) 1992-2014 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 10.0-STABLE #0 r263710: Tue Mar 25 21:21:41 NZDT 2014
    root at daemonblade:/usr/obj/usr/src/sys/DAEMONBLADE amd64
FreeBSD clang version 3.4 (tags/RELEASE_34/final 197956) 20140216
CPU: Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz (1795.88-MHz K8-class CPU)
  Origin = "GenuineIntel"  Id = 0x40651  Family = 0x6  Model = 0x45
Stepping = 1
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x7fdafbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
  AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
  AMD Features2=0x21<LAHF,ABM>
  Standard Extended
Features=0x27ab<GSFSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ENHMOVSB,INVPCID>
  TSC: P-state invariant, performance statistics
real memory  = 17179869184 (16384 MB)
avail memory = 16464371712 (15701 MB)
Event timer "LAPIC" quality 600
ACPI APIC Table: <DELL   WN09   >
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 SMT threads
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  2
 cpu3 (AP): APIC ID:  3
ACPI Error: Gpe0Block - 32-bit FADT register is too long (32 bytes,
256 bits) to convert to GAS struct - 255 bits max, truncating
(20130823/tbfadt-223)
ioapic0 <Version 2.0> irqs 0-39 on motherboard
random: <Software, Yarrow> initialized
kbd1 at kbdmux0
acpi0: <DELL WN09   > on motherboard
acpi0: Power Button (fixed)
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 950
Event timer "HPET" frequency 14318180 Hz quality 550
Event timer "HPET1" frequency 14318180 Hz quality 440
Event timer "HPET2" frequency 14318180 Hz quality 440
Event timer "HPET3" frequency 14318180 Hz quality 440
Event timer "HPET4" frequency 14318180 Hz quality 440
atrtc0: <AT realtime clock> port 0x70-0x77 irq 8 on acpi0
atrtc0: Warning: Couldn't map I/O.
Event timer "RTC" frequency 32768 Hz quality 0
attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1808-0x180b on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib0: no PRT entry for 0.20.INTA
vgapci0: <VGA-compatible display> port 0x5000-0x503f mem
0xe3000000-0xe33fffff,0xc0000000-0xcfffffff irq 16 at device 2.0 on
pci0
vgapci0: Boot video device
hdac0: <Intel Haswell HDA Controller> mem 0xe3610000-0xe3613fff irq 16
at device 3.0 on pci0
xhci0: <Intel Panther Point USB 3.0 controller> mem
0xe3600000-0xe360ffff irq 11 at device 20.0 on pci0
xhci0: 32 byte context size.
xhci0: Port routing mask set to 0xffffffff
usbus0 on xhci0
pci0: <simple comms> at device 22.0 (no driver attached)
hdac1: <Intel Lynx Point-LP HDA Controller> mem 0xe3614000-0xe3617fff
irq 22 at device 27.0 on pci0
pcib1: <ACPI PCI-PCI bridge> irq 16 at device 28.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> irq 18 at device 28.2 on pci0
pci2: <ACPI PCI bus> on pcib2
pci2: <network> at device 0.0 (no driver attached)
pcib3: <ACPI PCI-PCI bridge> irq 19 at device 28.3 on pci0
pci3: <ACPI PCI bus> on pcib3
pci3: <unknown> at device 0.0 (no driver attached)
re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port
0x4000-0x40ff mem 0xe3404000-0xe3404fff,0xe3400000-0xe3403fff irq 19
at device 0.1 on pci3
re0: Using 1 MSI-X message
re0: ASPM disabled
re0: Chip rev. 0x5c800000
re0: MAC rev. 0x00000000
miibus0: <MII bus> on re0
rgephy0: <RTL8251 1000BASE-T media interface> PHY 1 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX,
100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT-FDX,
1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master,
auto, auto-flow
re0: Ethernet address: e0:db:55:c7:35:02
pcib4: <ACPI PCI-PCI bridge> irq 16 at device 28.4 on pci0
pci4: <ACPI PCI bus> on pcib4
vgapci1: <VGA-compatible display> port 0x3000-0x307f mem
0xe2000000-0xe2ffffff,0xd0000000-0xdfffffff,0xe0000000-0xe1ffffff irq
16 at device 0.0 on pci4
nvidia1: <GeForce GT 750M> on vgapci1
vgapci1: child nvidia1 requested pci_enable_io
vgapci1: child nvidia1 requested pci_enable_io
ehci0: <EHCI (generic) USB 2.0 controller> mem 0xe361d000-0xe361d3ff
irq 23 at device 29.0 on pci0
usbus1: EHCI version 1.0
usbus1 on ehci0
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
ahci0: <Intel Lynx Point-LP AHCI SATA controller> port
0x5088-0x508f,0x5094-0x5097,0x5080-0x5087,0x5090-0x5093,0x5060-0x507f
mem 0xe361c000-0xe361c7ff irq 19 at device 31.2 on pci0
ahci0: AHCI v1.30 with 4 6Gbps ports, Port Multiplier not supported
ahcich0: <AHCI channel> at channel 0 on ahci0
ahcich1: <AHCI channel> at channel 1 on ahci0
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
acpi_acad0: <AC Adapter> on acpi0
battery0: <ACPI Control Method Battery> on acpi0
acpi_lid0: <Control Method Lid Switch> on acpi0
acpi_button0: <Power Button> on acpi0
acpi_button1: <Sleep Button> on acpi0
acpi_tz0: <Thermal Zone> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64,0x62,0x66 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ppc0: cannot reserve I/O port range
est0: <Enhanced SpeedStep Frequency Control> on cpu0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
est1: <Enhanced SpeedStep Frequency Control> on cpu1
p4tcc1: <CPU Frequency Thermal Control> on cpu1
est2: <Enhanced SpeedStep Frequency Control> on cpu2
p4tcc2: <CPU Frequency Thermal Control> on cpu2
est3: <Enhanced SpeedStep Frequency Control> on cpu3
p4tcc3: <CPU Frequency Thermal Control> on cpu3
ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
Timecounters tick every 1.000 msec
hdacc0: <Intel Haswell HDA CODEC> at cad 0 on hdac0
hdaa0: <Intel Haswell Audio Function Group> at nid 1 on hdacc0
pcm0: <Intel Haswell (HDMI/DP 8ch)> at nid 3 on hdaa0
hdacc1: <Realtek (0x0283) HDA CODEC> at cad 0 on hdac1
hdaa1: <Realtek (0x0283) Audio Function Group> at nid 1 on hdacc1
pcm1: <Realtek (0x0283) (Analog 2.0+HP/2.0)> at nid 20,33 and 18 on hdaa1
random: unblocking device.
usbus0: 5.0Gbps Super Speed USB v3.0
usbus1: 480Mbps High Speed USB v2.0
ugen0.1: <0x8086> at usbus0
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
ugen1.1: <Intel> at usbus1
uhub1: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <ST1000LM014-1EJ164 DEM7> ATA-9 SATA 3.x device
ada0: Serial Number W381E00Z
ada0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 953869MB (1953525168 512 byte sectors: 16H 63S/T 16383C)
ada0: Previously was known as ad4
cd0 at ahcich1 bus 0 scbus1 target 0 lun 0
cd0: <PLDS DVD+-RW DU-8A5HH SD12> Removable CD-ROM SCSI-0 device
cd0: Serial Number TTYK07363942J51Z9A03
cd0: 150.000MB/s transfers (SATA 1.x, UDMA5, ATAPI 12bytes, PIO 8192bytes)
cd0: Attempt to query device size failed: NOT READY, Medium not
present - tray closed
Netvsc initializing... SMP: AP CPU #1 Launched!
SMP: AP CPU #3 Launched!
SMP: AP CPU #2 Launched!
Timecounter "TSC" frequency 1795882972 Hz quality 1000
Root mount waiting for: usbus1 usbus0
uhub0: 13 ports with 13 removable, self powered
Root mount waiting for: usbus1 usbus0
ugen0.2: <Logitech> at usbus0
uhub1: 3 ports with 3 removable, self powered
ugen0.3: <CNFDH20J4530100011M2> at usbus0
ugen1.2: <vendor 0x8087> at usbus1
uhub2: <vendor 0x8087 product 0x8000, class 9/0, rev 2.00/0.04, addr
2> on usbus1
Root mount waiting for: usbus1 usbus0
uhub2: 8 ports with 8 removable, self powered
Root mount waiting for: usbus0
xhci0: Resetting controller
usb_alloc_device: set address 4 failed (USB_ERR_TIMEOUT, ignored)
Root mount waiting for: usbus0
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
Root mount waiting for: usbus0
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
Root mount waiting for: usbus0
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
Root mount waiting for: usbus0
Root mount waiting for: usbus0
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
Root mount waiting for: usbus0
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
Root mount waiting for: usbus0
Root mount waiting for: usbus0
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
Root mount waiting for: usbus0
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
Root mount waiting for: usbus0
Root mount waiting for: usbus0
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
Root mount waiting for: usbus0
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
ugen0.4: <Unknown> at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
ugen0.4: <ELAN> at usbus0
hid_get_item: Number of items truncated to 255
uhub0: at usbus0, port 1, addr 1 (disconnected)
ugen0.2: <Logitech> at usbus0 (disconnected)
Trying to mount root from zfs:deepwater []...
ugen0.3: <CNFDH20J4530100011M2> at usbus0 (disconnected)
ugen0.4: <ELAN> at usbus0 (disconnected)
xhci0: 32 byte context size.
xhci0: Port routing mask set to 0xffffffff
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub0: 13 ports with 13 removable, self powered
fuse-freebsd: version 0.4.4, FUSE ABI 7.8
ugen0.2: <Logitech> at usbus0
ugen0.3: <CNFDH20J4530100011M2> at usbus0
xhci0: Resetting controller
usb_alloc_device: set address 4 failed (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
ugen0.4: <Unknown> at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
ugen0.4: <ELAN> at usbus0
hid_get_item: Number of items truncated to 255
uhub0: at usbus0, port 1, addr 1 (disconnected)
ugen0.2: <Logitech> at usbus0 (disconnected)
ugen0.3: <CNFDH20J4530100011M2> at usbus0 (disconnected)
ugen0.4: <ELAN> at usbus0 (disconnected)
xhci0: 32 byte context size.
xhci0: Port routing mask set to 0xffffffff
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub0: 13 ports with 13 removable, self powered
ugen0.2: <Logitech> at usbus0
ums0: <Logitech USB Mouse, class 0/0, rev 1.10/6.20, addr 1> on usbus0
ums0: error reading report description
device_attach: ums0 attach returned 12
ugen0.3: <CNFDH20J4530100011M2> at usbus0
xhci0: Resetting controller
usb_alloc_device: set address 4 failed (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
ugen0.4: <Unknown> at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
ugen0.4: <ELAN> at usbus0
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
uhid0: <ELAN Touchscreen, class 0/0, rev 2.00/11.13, addr 4> on usbus0
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
uhub0: at usbus0, port 1, addr 1 (disconnected)
ugen0.2: <Logitech> at usbus0 (disconnected)
ugen0.3: <CNFDH20J4530100011M2> at usbus0 (disconnected)
ugen0.4: <ELAN> at usbus0 (disconnected)
uhid0: at uhub0, port 7, addr 4 (disconnected)
xhci0: 32 byte context size.
xhci0: Port routing mask set to 0xffffffff
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub0: 13 ports with 13 removable, self powered
ugen0.2: <Logitech> at usbus0
ums0: <Logitech USB Mouse, class 0/0, rev 1.10/6.20, addr 1> on usbus0
ums0: error reading report description
device_attach: ums0 attach returned 12
ugen0.3: <CNFDH20J4530100011M2> at usbus0
xhci0: Resetting controller
usb_alloc_device: set address 4 failed (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
ugen0.4: <Unknown> at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
ugen0.4: <ELAN> at usbus0
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
uhid0: <ELAN Touchscreen, class 0/0, rev 2.00/11.13, addr 4> on usbus0
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
uhub0: at usbus0, port 1, addr 1 (disconnected)
ugen0.2: <Logitech> at usbus0 (disconnected)
ugen0.3: <CNFDH20J4530100011M2> at usbus0 (disconnected)
ugen0.4: <ELAN> at usbus0 (disconnected)
uhid0: at uhub0, port 7, addr 4 (disconnected)
xhci0: 32 byte context size.
xhci0: Port routing mask set to 0xffffffff
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub0: 13 ports with 13 removable, self powered
ugen0.2: <Logitech> at usbus0
ums0: <Logitech USB Mouse, class 0/0, rev 1.10/6.20, addr 1> on usbus0
ums0: 3 buttons and [XYZ] coordinates ID=0
ugen0.3: <CNFDH20J4530100011M2> at usbus0
xhci0: Resetting controller
usb_alloc_device: set address 4 failed (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
usbd_req_re_enumerate: addr=4, set address failed! (USB_ERR_TIMEOUT, ignored)
usbd_setup_device_desc: getting device descriptor at addr 4 failed,
USB_ERR_TIMEOUT
ugen0.4: <Unknown> at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
ugen0.4: <ELAN> at usbus0
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
uhid0: <ELAN Touchscreen, class 0/0, rev 2.00/11.13, addr 4> on usbus0
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
hid_get_item: Number of items truncated to 255
uhub0: at usbus0, port 1, addr 1 (disconnected)
ugen0.2: <Logitech> at usbus0 (disconnected)
ums0: at uhub0, port 3, addr 1 (disconnected)
ugen0.3: <CNFDH20J4530100011M2> at usbus0 (disconnected)
ugen0.4: <ELAN> at usbus0 (disconnected)
uhid0: at uhub0, port 7, addr 4 (disconnected)
xhci0: 32 byte context size.
xhci0: Port routing mask set to 0xffffffff
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub0: 13 ports with 13 removable, self powered
ugen0.2: <Logitech> at usbus0
ums0: <Logitech USB Mouse, class 0/0, rev 1.10/6.20, addr 1> on usbus0
ums0: 3 buttons and [XYZ] coordinates ID=0
ugen0.3: <CNFDH20J4530100011M2> at usbus0
xhci0: Resetting controller
[..repeat ad-infinitum ...]