On 19/06/16(Sun) 11:26, Marcus MERIGHI wrote:
> When booting bsd.rd, after the line
> 
> umass0 at uhub4 port 4 configuration 3 interface 0 "Lenovo F5521gw" rev
>   2.00/0.00 addr 3
> 
> there is a long (minutes) delay.
> 
> To me it seems bsd.rd these days finds a umass device the so-called WWAN
> interface (GPRS/UMTS/LTE+GPS) provides.

Let me guess, this device doesn't attach as umass(4) with bsd.  I bet
the umass(4) driver is generating timeouts, If you don't use the device
you can disable it in your BIOS.

> 
> Possibly related:
> http://marc.info/?l=openbsd-tech&m=146619500807823
> "It revamps the way we look up interface descriptors quite a bit. I
> removed the unused code for matching devices based on vendor and product
> ids." (kettenis@)
> 
> dmesg of bsd.rd and unmodified self-compiled kernel below. lsusb -v
> output at the very end.
> 
> OpenBSD 6.0-beta (RAMDISK_CD) #1982: Sat Jun 18 11:42:13 MDT 2016
>     [email protected]:/usr/src/sys/arch/amd64/compile/RAMDISK_CD
> RTC BIOS diagnostic error 80<clock_battery>
> real mem = 8451125248 (8059MB)
> avail mem = 8193282048 (7813MB)
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 2.6 @ 0xdae9c000 (64 entries)
> bios0: vendor LENOVO version "8DET72WW (1.42 )" date 02/18/2016
> bios0: LENOVO 4291QQ1
> acpi0 at bios0: rev 2
> acpi0: tables DSDT FACP SLIC SSDT SSDT SSDT HPET APIC MCFG ECDT ASF! TCPA 
> SSDT SSDT DMAR UEFI UEFI UEFI
> acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz, 797.54 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,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
> cpu0: 256KB 64b/line 8-way L2 cache
> cpu0: apic clock running at 99MHz
> cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
> cpu at mainbus0: not configured
> cpu at mainbus0: not configured
> cpu at mainbus0: not configured
> ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
> acpiec0 at acpi0
> 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 5 (EXP4)
> acpiprt5 at acpi0: bus 13 (EXP5)
> acpiprt6 at acpi0: bus 14 (EXP7)
> acpicpu at acpi0 not configured
> acpipwrres at acpi0 not configured
> acpitz at acpi0 not configured
> "PNP0C0D" at acpi0 not configured
> "PNP0C0E" at acpi0 not configured
> "PNP0303" at acpi0 not configured
> "LEN0020" at acpi0 not configured
> "PNP0C0A" at acpi0 not configured
> "ACPI0003" at acpi0 not configured
> "LEN0068" at acpi0 not configured
> "PNP0C14" at acpi0 not configured
> "PNP0C14" at acpi0 not configured
> pci0 at mainbus0 bus 0
> pchb0 at pci0 dev 0 function 0 "Intel Core 2G Host" rev 0x09
> vga1 at pci0 dev 2 function 0 "Intel HD Graphics 3000" rev 0x09
> wsdisplay1 at vga1 mux 1: console (80x25, vt100 emulation)
> "Intel 6 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
> em0 at pci0 dev 25 function 0 "Intel 82579LM" rev 0x04: msi, address 
> f0:de:f1:8f:84:ac
> ehci0 at pci0 dev 26 function 0 "Intel 6 Series USB" rev 0x04: apic 2 int 16
> usb0 at ehci0: USB revision 2.0
> uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
> "Intel 6 Series HD Audio" rev 0x04 at pci0 dev 27 function 0 not configured
> ppb0 at pci0 dev 28 function 0 "Intel 6 Series PCIE" rev 0xb4: msi
> pci1 at ppb0 bus 2
> ppb1 at pci0 dev 28 function 1 "Intel 6 Series PCIE" rev 0xb4: msi
> pci2 at ppb1 bus 3
> iwn0 at pci2 dev 0 function 0 "Intel Centrino Ultimate-N 6300" rev 0x35: msi, 
> MIMO 3T3R, MoW, address 00:24:d7:f0:ea:90
> ppb2 at pci0 dev 28 function 3 "Intel 6 Series PCIE" rev 0xb4: msi
> pci3 at ppb2 bus 5
> ppb3 at pci0 dev 28 function 4 "Intel 6 Series PCIE" rev 0xb4: msi
> pci4 at ppb3 bus 13
> sdhc0 at pci4 dev 0 function 0 "Ricoh 5U822 SD/MMC" rev 0x07: apic 2 int 16
> sdhc0: SDHC 3.0, 50 MHz base clock
> sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma
> ppb4 at pci0 dev 28 function 6 "Intel 6 Series PCIE" rev 0xb4: msi
> pci5 at ppb4 bus 14
> xhci0 at pci5 dev 0 function 0 "NEC xHCI" rev 0x04: msi
> usb1 at xhci0: USB revision 3.0
> uhub1 at usb1 "NEC xHCI root hub" rev 3.00/1.00 addr 1
> ehci1 at pci0 dev 29 function 0 "Intel 6 Series USB" rev 0x04: apic 2 int 23
> usb2 at ehci1: USB revision 2.0
> uhub2 at usb2 "Intel EHCI root hub" rev 2.00/1.00 addr 1
> "Intel QM67 LPC" rev 0x04 at pci0 dev 31 function 0 not configured
> ahci0 at pci0 dev 31 function 2 "Intel 6 Series AHCI" rev 0x04: msi, AHCI 1.3
> ahci0: port 0: 6.0Gb/s
> scsibus0 at ahci0: 32 targets
> sd0 at scsibus0 targ 0 lun 0: <ATA, SanDisk SDSSDHII, X312> SCSI3 0/direct 
> fixed naa.5001b44e1d7ef244
> sd0: 228936MB, 512 bytes/sector, 468862128 sectors, thin
> "Intel 6 Series SMBus" rev 0x04 at pci0 dev 31 function 3 not configured
> isa0 at mainbus0
> pckbc0 at isa0 port 0x60/5 irq 1 irq 12
> pckbd0 at pckbc0 (kbd slot)
> wskbd0 at pckbd0: console keyboard, using wsdisplay1
> uhub3 at uhub0 port 1 "vendor 0x8087 product 0x0024" rev 2.00/0.00 addr 2
> uhub4 at uhub2 port 1 "vendor 0x8087 product 0x0024" rev 2.00/0.00 addr 2
> umass0 at uhub4 port 4 configuration 3 interface 0 "Lenovo F5521gw" rev 
> 2.00/0.00 addr 3
> 
> => delay here <=
> 
> umass0: using SCSI over Bulk-Only
> scsibus1 at umass0: 2 targets, initiator 0
> softraid0 at root
> scsibus2 at softraid0: 256 targets
> root on rd0a swap on rd0b dump on rd0b
> 
> # DMESG self compiled unmodified
> 
> OpenBSD 6.0-beta (GENERIC.MP) #13: Fri Jun 17 17:02:45 CEST 2016
>     xx@yy:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> RTC BIOS diagnostic error 80<clock_battery>
> real mem = 8451125248 (8059MB)
> avail mem = 8190496768 (7811MB)
> mpath0 at root
> scsibus0 at mpath0: 256 targets
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 2.6 @ 0xdae9c000 (64 entries)
> bios0: vendor LENOVO version "8DET72WW (1.42 )" date 02/18/2016
> bios0: LENOVO 4291QQ1
> acpi0 at bios0: rev 2
> acpi0: sleep states S0 S3 S4 S5
> acpi0: tables DSDT FACP SLIC SSDT SSDT SSDT HPET APIC MCFG ECDT ASF! TCPA 
> SSDT SSDT DMAR UEFI UEFI UEFI
> acpi0: wakeup devices LID_(S3) SLPB(S3) IGBE(S4) EXP4(S4) EXP7(S4) EHC1(S3) 
> EHC2(S3) HDEF(S4)
> acpitimer0 at acpi0: 3579545 Hz, 24 bits
> 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) i7-2620M CPU @ 2.70GHz, 797.53 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,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
> 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
> cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
> cpu1 at mainbus0: apid 1 (application processor)
> cpu1: Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz, 797.41 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,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
> 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) i7-2620M CPU @ 2.70GHz, 797.41 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,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
> 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) i7-2620M CPU @ 2.70GHz, 797.41 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,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
> cpu3: 256KB 64b/line 8-way L2 cache
> cpu3: smt 1, core 1, package 0
> ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
> acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
> acpiec0 at acpi0
> 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 5 (EXP4)
> acpiprt5 at acpi0: bus 13 (EXP5)
> acpiprt6 at acpi0: bus 14 (EXP7)
> acpicpu0 at acpi0: C3(200@109 io@0x416), C2(500@80 io@0x414), C1(1000@1 
> halt), PSS
> acpicpu1 at acpi0: C3(200@109 io@0x416), C2(500@80 io@0x414), C1(1000@1 
> halt), PSS
> acpicpu2 at acpi0: C3(200@109 io@0x416), C2(500@80 io@0x414), C1(1000@1 
> halt), PSS
> acpicpu3 at acpi0: C3(200@109 io@0x416), C2(500@80 io@0x414), C1(1000@1 
> halt), PSS
> acpipwrres0 at acpi0: PUBS, resource for EHC1, EHC2
> acpitz0 at acpi0: critical temperature is 99 degC
> acpibtn0 at acpi0: LID_
> acpibtn1 at acpi0: SLPB
> "PNP0303" at acpi0 not configured
> "LEN0020" at acpi0 not configured
> acpibat0 at acpi0: BAT0 model "45N1172" serial 13541 type LION oem "SANYO"
> acpiac0 at acpi0: AC unit offline
> acpithinkpad0 at acpi0
> "PNP0C14" at acpi0 not configured
> "PNP0C14" at acpi0 not configured
> acpidock0 at acpi0: GDCK not docked (0)
> acpivideo0 at acpi0: VID_
> acpivout at acpivideo0 not configured
> acpivideo1 at acpi0: VID_
> cpu0: Enhanced SpeedStep 797 MHz: speeds: 2701, 2700, 2400, 2200, 2000, 1800, 
> 1600, 1400, 1200, 1000, 800 MHz
> pci0 at mainbus0 bus 0
> pchb0 at pci0 dev 0 function 0 "Intel Core 2G Host" rev 0x09
> inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 3000" rev 0x09
> drm0 at inteldrm0
> inteldrm0: msi
> inteldrm0: 1366x768
> wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
> wsdisplay0: screen 1-5 added (std, vt100 emulation)
> "Intel 6 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
> em0 at pci0 dev 25 function 0 "Intel 82579LM" rev 0x04: msi, address 
> f0:de:f1:8f:84:ac
> ehci0 at pci0 dev 26 function 0 "Intel 6 Series USB" rev 0x04: apic 2 int 16
> usb0 at ehci0: USB revision 2.0
> uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
> azalia0 at pci0 dev 27 function 0 "Intel 6 Series HD Audio" rev 0x04: msi
> azalia0: codecs: Conexant CX20590, Intel/0x2805, using Conexant CX20590
> audio0 at azalia0
> ppb0 at pci0 dev 28 function 0 "Intel 6 Series PCIE" rev 0xb4: msi
> pci1 at ppb0 bus 2
> ppb1 at pci0 dev 28 function 1 "Intel 6 Series PCIE" rev 0xb4: msi
> pci2 at ppb1 bus 3
> iwn0 at pci2 dev 0 function 0 "Intel Centrino Ultimate-N 6300" rev 0x35: msi, 
> MIMO 3T3R, MoW, address 00:24:d7:f0:ea:90
> ppb2 at pci0 dev 28 function 3 "Intel 6 Series PCIE" rev 0xb4: msi
> pci3 at ppb2 bus 5
> ppb3 at pci0 dev 28 function 4 "Intel 6 Series PCIE" rev 0xb4: msi
> pci4 at ppb3 bus 13
> sdhc0 at pci4 dev 0 function 0 "Ricoh 5U822 SD/MMC" rev 0x07: apic 2 int 16
> sdhc0: SDHC 3.0, 50 MHz base clock
> sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma
> ppb4 at pci0 dev 28 function 6 "Intel 6 Series PCIE" rev 0xb4: msi
> pci5 at ppb4 bus 14
> xhci0 at pci5 dev 0 function 0 "NEC xHCI" rev 0x04: msi
> usb1 at xhci0: USB revision 3.0
> uhub1 at usb1 "NEC xHCI root hub" rev 3.00/1.00 addr 1
> ehci1 at pci0 dev 29 function 0 "Intel 6 Series USB" rev 0x04: apic 2 int 23
> usb2 at ehci1: USB revision 2.0
> uhub2 at usb2 "Intel EHCI root hub" rev 2.00/1.00 addr 1
> pcib0 at pci0 dev 31 function 0 "Intel QM67 LPC" rev 0x04
> ahci0 at pci0 dev 31 function 2 "Intel 6 Series AHCI" rev 0x04: msi, AHCI 1.3
> ahci0: port 0: 6.0Gb/s
> scsibus1 at ahci0: 32 targets
> sd0 at scsibus1 targ 0 lun 0: <ATA, SanDisk SDSSDHII, X312> SCSI3 0/direct 
> fixed naa.5001b44e1d7ef244
> sd0: 228936MB, 512 bytes/sector, 468862128 sectors, thin
> ichiic0 at pci0 dev 31 function 3 "Intel 6 Series SMBus" rev 0x04: apic 2 int 
> 18
> iic0 at ichiic0
> spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
> spdmem1 at iic0 addr 0x51: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
> isa0 at pcib0
> 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
> wsmouse1 at pms0 mux 0
> pms0: Synaptics clickpad, firmware 8.0
> pcppi0 at isa0 port 0x61
> spkr0 at pcppi0
> aps0 at isa0 port 0x1600/31
> uhub3 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
> uhub4 at uhub2 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
> umodem0 at uhub4 port 4 configuration 1 interface 1 "Lenovo F5521gw" rev 
> 2.00/0.00 addr 3
> umodem0: data interface 2, has CM over data, has break
> umodem0: status change notification available
> ucom0 at umodem0
> umodem1 at uhub4 port 4 configuration 1 interface 3 "Lenovo F5521gw" rev 
> 2.00/0.00 addr 3
> umodem1: data interface 4, has CM over data, has break
> umodem1: status change notification available
> ucom1 at umodem1
> umodem2 at uhub4 port 4 configuration 1 interface 9 "Lenovo F5521gw" rev 
> 2.00/0.00 addr 3
> umodem2: data interface 10, has CM over data, has break
> umodem2: status change notification available
> ucom2 at umodem2
> ugen0 at uhub4 port 4 configuration 1 "Lenovo F5521gw" rev 2.00/0.00 addr 3
> vscsi0 at root
> scsibus2 at vscsi0: 256 targets
> softraid0 at root
> scsibus3 at softraid0: 256 targets
> root on sd0a (ba2fda317d02edc5.a) swap on sd0b dump on sd0b
> sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed
> sd1: 207103MB, 512 bytes/sector, 424147633 sectors
> 
> # LSUSB
> 
> Bus 000 Device 001: ID 8086:0000 Intel Corp. 
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         1 Single TT
>   bMaxPacketSize0        64
>   idVendor           0x8086 Intel Corp.
>   idProduct          0x0000 
>   bcdDevice            1.00
>   iManufacturer           1 Intel
>   iProduct                2 EHCI root hub
>   iSerial                 0 
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           25
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0 
>     bmAttributes         0x40
>       (Missing must-be-set bit!)
>       Self Powered
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         9 Hub
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 Full speed (or root) hub
>       iInterface              0 
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval              12
> Hub Descriptor:
>   bLength              10
>   bDescriptorType      41
>   nNbrPorts             3
>   wHubCharacteristic 0x0002
>     No power switching (usb 1.0)
>     Ganged overcurrent protection
>     TT think time 8 FS bits
>   bPwrOn2PwrGood      200 * 2 milli seconds
>   bHubContrCurrent      0 milli Ampere
>   DeviceRemovable    0x00
>   PortPwrCtrlMask    0x00
>  Hub Port Status:
>    Port 1: 0000.0503 highspeed power enable connect
>    Port 2: 0000.0500 highspeed power
>    Port 3: 0000.0500 highspeed power
> Device Status:     0x0001
>   Self Powered
> 
> Bus 000 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         1 Single TT
>   bMaxPacketSize0        64
>   idVendor           0x8087 Intel Corp.
>   idProduct          0x0024 Integrated Rate Matching Hub
>   bcdDevice            0.00
>   iManufacturer           0 
>   iProduct                0 
>   iSerial                 0 
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           25
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0 
>     bmAttributes         0xe0
>       Self Powered
>       Remote Wakeup
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         9 Hub
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 Full speed (or root) hub
>       iInterface              0 
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0001  1x 1 bytes
>         bInterval              12
> Hub Descriptor:
>   bLength               9
>   bDescriptorType      41
>   nNbrPorts             6
>   wHubCharacteristic 0x0009
>     Per-port power switching
>     Per-port overcurrent protection
>     TT think time 8 FS bits
>   bPwrOn2PwrGood       50 * 2 milli seconds
>   bHubContrCurrent      0 milli Ampere
>   DeviceRemovable    0x00
>   PortPwrCtrlMask    0xff
>  Hub Port Status:
>    Port 1: 0000.0100 power
>    Port 2: 0000.0100 power
>    Port 3: 0000.0100 power
>    Port 4: 0000.0100 power
>    Port 5: 0000.0100 power
>    Port 6: 0000.0100 power
> Device Qualifier (for other device speed):
>   bLength                10
>   bDescriptorType         6
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         0 Full speed (or root) hub
>   bMaxPacketSize0        64
>   bNumConfigurations      1
> Device Status:     0x0001
>   Self Powered
> 
> Bus 001 Device 001: ID 1033:0000 Nucam Corp. 
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               3.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         1 Single TT
>   bMaxPacketSize0         9
>   idVendor           0x1033 Nucam Corp.
>   idProduct          0x0000 
>   bcdDevice            1.00
>   iManufacturer           1 NEC
>   iProduct                2 xHCI root hub
>   iSerial                 0 
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           25
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0 
>     bmAttributes         0x40
>       (Missing must-be-set bit!)
>       Self Powered
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         9 Hub
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 Full speed (or root) hub
>       iInterface              0 
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0002  1x 2 bytes
>         bInterval             255
> Hub Descriptor:
>   bLength              13
>   bDescriptorType      42
>   nNbrPorts             4
>   wHubCharacteristic 0x0001
>     Per-port power switching
>     Ganged overcurrent protection
>     TT think time 8 FS bits
>   bPwrOn2PwrGood       10 * 2 milli seconds
>   bHubContrCurrent      0 milli Ampere
>   DeviceRemovable    0x00
>   PortPwrCtrlMask    0x00
>  Hub Port Status:
>    Port 1: 0000.02a0 5Gbps power Rx.Detect
>    Port 2: 0000.02a0 5Gbps power Rx.Detect
>    Port 3: 0000.02a0 5Gbps power Rx.Detect
>    Port 4: 0000.02a0 5Gbps power Rx.Detect
> Device Status:     0x0001
>   Self Powered
> 
> Bus 002 Device 001: ID 8086:0000 Intel Corp. 
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         1 Single TT
>   bMaxPacketSize0        64
>   idVendor           0x8086 Intel Corp.
>   idProduct          0x0000 
>   bcdDevice            1.00
>   iManufacturer           1 Intel
>   iProduct                2 EHCI root hub
>   iSerial                 0 
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           25
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0 
>     bmAttributes         0x40
>       (Missing must-be-set bit!)
>       Self Powered
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         9 Hub
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 Full speed (or root) hub
>       iInterface              0 
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval              12
> Hub Descriptor:
>   bLength              10
>   bDescriptorType      41
>   nNbrPorts             3
>   wHubCharacteristic 0x0002
>     No power switching (usb 1.0)
>     Ganged overcurrent protection
>     TT think time 8 FS bits
>   bPwrOn2PwrGood      200 * 2 milli seconds
>   bHubContrCurrent      0 milli Ampere
>   DeviceRemovable    0x00
>   PortPwrCtrlMask    0x00
>  Hub Port Status:
>    Port 1: 0000.0503 highspeed power enable connect
>    Port 2: 0000.0500 highspeed power
>    Port 3: 0000.0500 highspeed power
> Device Status:     0x0001
>   Self Powered
> 
> Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         1 Single TT
>   bMaxPacketSize0        64
>   idVendor           0x8087 Intel Corp.
>   idProduct          0x0024 Integrated Rate Matching Hub
>   bcdDevice            0.00
>   iManufacturer           0 
>   iProduct                0 
>   iSerial                 0 
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           25
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0 
>     bmAttributes         0xe0
>       Self Powered
>       Remote Wakeup
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         9 Hub
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 Full speed (or root) hub
>       iInterface              0 
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0002  1x 2 bytes
>         bInterval              12
> Hub Descriptor:
>   bLength              11
>   bDescriptorType      41
>   nNbrPorts             8
>   wHubCharacteristic 0x0009
>     Per-port power switching
>     Per-port overcurrent protection
>     TT think time 8 FS bits
>   bPwrOn2PwrGood       50 * 2 milli seconds
>   bHubContrCurrent      0 milli Ampere
>   DeviceRemovable    0x00 0x00
>   PortPwrCtrlMask    0xff 0xff
>  Hub Port Status:
>    Port 1: 0000.0100 power
>    Port 2: 0000.0100 power
>    Port 3: 0000.0100 power
>    Port 4: 0000.0503 highspeed power enable connect
>    Port 5: 0000.0100 power
>    Port 6: 0000.0100 power
>    Port 7: 0000.0100 power
>    Port 8: 0000.0100 power
> Device Qualifier (for other device speed):
>   bLength                10
>   bDescriptorType         6
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         0 Full speed (or root) hub
>   bMaxPacketSize0        64
>   bNumConfigurations      1
> Device Status:     0x0001
>   Self Powered
> 
> Bus 002 Device 003: ID 0bdb:1911 Ericsson Business Mobile Networks BV 
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            2 Communications
>   bDeviceSubClass         0 
>   bDeviceProtocol         0 
>   bMaxPacketSize0        64
>   idVendor           0x0bdb Ericsson Business Mobile Networks BV
>   idProduct          0x1911 
>   bcdDevice            0.00
>   iManufacturer           1 Lenovo
>   iProduct                2 F5521gw
>   iSerial                 3 D445990E94347800
>   bNumConfigurations      3
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength          371
>     bNumInterfaces         11
>     bConfigurationValue     1
>     iConfiguration          4 WMC Device with GPS
>     bmAttributes         0xe0
>       Self Powered
>       Remote Wakeup
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           0
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      8 Wireless Handset Control
>       bInterfaceProtocol      0 
>       iInterface              5 F5521gw Mobile Broadband Device
>       CDC Header:
>         bcdCDC               1.10
>       CDC WHCM:
>         bcdVersion           1.00
>       CDC Union:
>         bMasterInterface        0
>         bSlaveInterface         1 2 3 4 5 6 7 8 9 10 
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      2 Abstract (modem)
>       bInterfaceProtocol      1 AT-commands (v.25ter)
>       iInterface              6 F5521gw Mobile Broadband Modem
>       CDC Header:
>         bcdCDC               1.10
>       CDC Union:
>         bMasterInterface        1
>         bSlaveInterface         2 
>       CDC Call Management:
>         bmCapabilities       0x03
>           call management
>           use DataInterface
>         bDataInterface          2
>       CDC ACM:
>         bmCapabilities       0x07
>           sends break
>           line coding and serial state
>           get/set/clear comm features
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x8a  EP 10 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0010  1x 16 bytes
>         bInterval               8
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        2
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 
>       iInterface              7 F5521gw Mobile Broadband Modem
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x01  EP 1 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        3
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      2 Abstract (modem)
>       bInterfaceProtocol      1 AT-commands (v.25ter)
>       iInterface              8 F5521gw Mobile Broadband Data Modem
>       CDC Header:
>         bcdCDC               1.10
>       CDC Union:
>         bMasterInterface        3
>         bSlaveInterface         4 
>       CDC Call Management:
>         bmCapabilities       0x03
>           call management
>           use DataInterface
>         bDataInterface          4
>       CDC ACM:
>         bmCapabilities       0x07
>           sends break
>           line coding and serial state
>           get/set/clear comm features
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x89  EP 9 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0010  1x 16 bytes
>         bInterval               8
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        4
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 
>       iInterface              9 F5521gw Mobile Broadband Data Modem
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x02  EP 2 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x82  EP 2 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        5
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      9 Device Management
>       bInterfaceProtocol      1 
>       iInterface             10 F5521gw Mobile Broadband Device Management
>       CDC Header:
>         bcdCDC               1.10
>       CDC Device Management:
>         bcdVersion           1.00
>         wMaxCommand          2048
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x88  EP 8 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0010  1x 16 bytes
>         bInterval               8
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        6
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass     13 
>       bInterfaceProtocol      0 
>       iInterface             11 F5521gw Mobile Broadband Network Adapter
>       CDC Header:
>         bcdCDC               1.10
>       CDC Union:
>         bMasterInterface        6
>         bSlaveInterface         7 
>       CDC Ethernet:
>         iMacAddress                     12 028037EC0200
>         bmEthernetStatistics    0x00000000
>         wMaxSegmentSize               1514
>         wNumberMCFilters            0x8040
>         bNumberPowerFilters              1
>       CDC NCM:
>         bcdNcmVersion        1.00
>         bmNetworkCapabilities 0x1b
>           crc mode
>           max datagram size
>           net address
>           packet filter
>       CDC Command Set:
>         bcdVersion           1.00
>         iCommandSet            13 S_NCM_CMD_FUNC
>         bGUID                {2e23bbae-c188-11df-bcdc-d9c6dfd72085}
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x86  EP 6 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval               7
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        7
>       bAlternateSetting       0
>       bNumEndpoints           0
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 
>       iInterface             14 F5521gw Mobile Broadband Network Adapter
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        7
>       bAlternateSetting       1
>       bNumEndpoints           2
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      1 
>       iInterface             15 F5521gw Mobile Broadband Network Adapter
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x05  EP 5 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x85  EP 5 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        8
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      9 Device Management
>       bInterfaceProtocol      1 
>       iInterface             16 F5521gw Mobile Broadband USIM Port
>       CDC Header:
>         bcdCDC               1.10
>       CDC Device Management:
>         bcdVersion           1.00
>         wMaxCommand          2048
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x87  EP 7 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0010  1x 16 bytes
>         bInterval               8
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        9
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      2 Abstract (modem)
>       bInterfaceProtocol      1 AT-commands (v.25ter)
>       iInterface             17 F5521gw Mobile Broadband GPS Port
>       CDC Header:
>         bcdCDC               1.10
>       CDC Union:
>         bMasterInterface        9
>         bSlaveInterface         10 
>       CDC Call Management:
>         bmCapabilities       0x03
>           call management
>           use DataInterface
>         bDataInterface          10
>       CDC ACM:
>         bmCapabilities       0x07
>           sends break
>           line coding and serial state
>           get/set/clear comm features
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x84  EP 4 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0010  1x 16 bytes
>         bInterval               8
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber       10
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 
>       iInterface             18 F5521gw Mobile Broadband GPS Port
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x03  EP 3 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength          311
>     bNumInterfaces          9
>     bConfigurationValue     2
>     iConfiguration         19 WMC Device
>     bmAttributes         0xe0
>       Self Powered
>       Remote Wakeup
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           0
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      8 Wireless Handset Control
>       bInterfaceProtocol      0 
>       iInterface              5 F5521gw Mobile Broadband Device
>       CDC Header:
>         bcdCDC               1.10
>       CDC WHCM:
>         bcdVersion           1.00
>       CDC Union:
>         bMasterInterface        0
>         bSlaveInterface         1 2 3 4 5 6 7 8 
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      2 Abstract (modem)
>       bInterfaceProtocol      1 AT-commands (v.25ter)
>       iInterface              6 F5521gw Mobile Broadband Modem
>       CDC Header:
>         bcdCDC               1.10
>       CDC Union:
>         bMasterInterface        1
>         bSlaveInterface         2 
>       CDC Call Management:
>         bmCapabilities       0x03
>           call management
>           use DataInterface
>         bDataInterface          2
>       CDC ACM:
>         bmCapabilities       0x07
>           sends break
>           line coding and serial state
>           get/set/clear comm features
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x8a  EP 10 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0010  1x 16 bytes
>         bInterval               8
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        2
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 
>       iInterface              7 F5521gw Mobile Broadband Modem
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x01  EP 1 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        3
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      2 Abstract (modem)
>       bInterfaceProtocol      1 AT-commands (v.25ter)
>       iInterface              8 F5521gw Mobile Broadband Data Modem
>       CDC Header:
>         bcdCDC               1.10
>       CDC Union:
>         bMasterInterface        3
>         bSlaveInterface         4 
>       CDC Call Management:
>         bmCapabilities       0x03
>           call management
>           use DataInterface
>         bDataInterface          4
>       CDC ACM:
>         bmCapabilities       0x07
>           sends break
>           line coding and serial state
>           get/set/clear comm features
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x89  EP 9 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0010  1x 16 bytes
>         bInterval               8
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        4
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 
>       iInterface              9 F5521gw Mobile Broadband Data Modem
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x02  EP 2 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x82  EP 2 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        5
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      9 Device Management
>       bInterfaceProtocol      1 
>       iInterface             10 F5521gw Mobile Broadband Device Management
>       CDC Header:
>         bcdCDC               1.10
>       CDC Device Management:
>         bcdVersion           1.00
>         wMaxCommand          2048
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x88  EP 8 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0010  1x 16 bytes
>         bInterval               8
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        6
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass     13 
>       bInterfaceProtocol      0 
>       iInterface             11 F5521gw Mobile Broadband Network Adapter
>       CDC Header:
>         bcdCDC               1.10
>       CDC Union:
>         bMasterInterface        6
>         bSlaveInterface         7 
>       CDC Ethernet:
>         iMacAddress                     12 028037EC0200
>         bmEthernetStatistics    0x00000000
>         wMaxSegmentSize               1514
>         wNumberMCFilters            0x8040
>         bNumberPowerFilters              1
>       CDC NCM:
>         bcdNcmVersion        1.00
>         bmNetworkCapabilities 0x1b
>           crc mode
>           max datagram size
>           net address
>           packet filter
>       CDC Command Set:
>         bcdVersion           1.00
>         iCommandSet            13 S_NCM_CMD_FUNC
>         bGUID                {2e23bbae-c188-11df-bcdc-d9c6dfd72085}
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x86  EP 6 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval               7
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        7
>       bAlternateSetting       0
>       bNumEndpoints           0
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0 
>       iInterface             14 F5521gw Mobile Broadband Network Adapter
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        7
>       bAlternateSetting       1
>       bNumEndpoints           2
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      1 
>       iInterface             15 F5521gw Mobile Broadband Network Adapter
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x05  EP 5 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x85  EP 5 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        8
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      9 Device Management
>       bInterfaceProtocol      1 
>       iInterface             16 F5521gw Mobile Broadband USIM Port
>       CDC Header:
>         bcdCDC               1.10
>       CDC Device Management:
>         bcdVersion           1.00
>         wMaxCommand          2048
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x87  EP 7 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0010  1x 16 bytes
>         bInterval               8
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           32
>     bNumInterfaces          1
>     bConfigurationValue     3
>     iConfiguration         20 MSC AutoInstall Device
>     bmAttributes         0xe0
>       Self Powered
>       Remote Wakeup
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass         8 Mass Storage
>       bInterfaceSubClass      6 SCSI
>       bInterfaceProtocol     80 Bulk-Only
>       iInterface             21 ST-Ericsson CD-ROM
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x05  EP 5 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x85  EP 5 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
> Device Qualifier (for other device speed):
>   bLength                10
>   bDescriptorType         6
>   bcdUSB               2.00
>   bDeviceClass            2 Communications
>   bDeviceSubClass         0 
>   bDeviceProtocol         0 
>   bMaxPacketSize0        64
>   bNumConfigurations      3
> Device Status:     0x0000
>   (Bus Powered)
> 

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