I have a recently released Thuraya GSM/satellite phone (Thuraya
XT-Dual) which apparently is running a version of Windows CE (can't
confirm that fully since the phone GUI does not provide that
information). Am trying to talk to that satellite phone over USB using
a router running Openwrt - linux kernel 3.2.5. The mfgr only supports
Windows tethering for that phone and am trying to get it to work in
Linux. An earlier version of the same phone worked fine with the
CDC-ACM driver (had to set flag_time to 1 while loading the ppp_async
module to get ppp working )
On plugging in, the phone does show up as a CDC-ACM device addressable
by /dev/ttyACM0. But attempts to send AT commands to the phone
using picocom or minicom or the existing 3G modem chat scripts all
fail. The phone does not appear to respond at all. Same behavior on a
Ubuntu 11.04 PC which has a stock 2.6.x (x could be 32 or higher)
kernel.
On Windows XP, the driver supplied with the phone installs fine and
the phone appears as a COM port. A dial up networking connection
works fine and connects to AT&T. Hyperterm also works for AT commands.
So clearly the hardware is OK.
Have tried an external powered hub - but no change. I don't think it
is a usbmodeswitch type issue since the phone is not a smart phone and
does not show us as an attached drive. Am wondering if Microsoft
Active Sync is creating issues since I see the Microsoft Active Sync
icon on the Windows XP tray when I plug in the phone and perhaps the
phone is expecting to get something from the host before responding to
AT commands.
Have turned USB_DEBUG on in the kernel and attached the output of
lsusb and logread (dmesg) below. Also output of a usbsnoop session
using a utility provided by TP-LINK for determining usbswitch
parameters.
Apologies in advance for the length of this email. Any pointers on
what I could do to further debug would be greatly appreciated.
Ashok
-------------------------------------
cat /proc/bus/usb/devices
-----------------------------------------
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1a26 ProdID=9d91 Rev= 0.00
S: SerialNumber=001AB10001CF
C:* #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr= 64mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=cdc_acm
E: Ad=86(I) Atr=03(Int.) MxPS= 64 Ivl=1ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm
E: Ad=84(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
-----------------------
lsusb -v
-----------------------
root@OpenWrt:/etc/modules.d/backup# lsusb -v
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 3.02
iManufacturer 3 Linux 3.2.5 ehci_hcd
iProduct 2 Atheros built-in EHCI controller
iSerial 1 ar933x-ehci
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 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 1
wHubCharacteristic 0x0009
Per-port power switching
Per-port overcurrent protection
TT think time 8 FS bits
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0103 power enable connect
Device Status: 0x0001
Self Powered
Bus 001 Device 005: ID 1a26:9d91
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 2 Communications
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1a26
idProduct 0x9d91
bcdDevice 0.00
iManufacturer 0
iProduct 0
iSerial 1 001AB10001CF
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 67
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 64mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands (v.25ter)
iInterface 0
CDC Header:
bcdCDC 1.09
CDC Call Management:
bmCapabilities 0x03
call management
use DataInterface
bDataInterface 1
CDC ACM:
bmCapabilities 0x0f
connection notifications
sends break
line coding and serial state
get/set/clear comm features
CDC Union:
bMasterInterface 0
bSlaveInterface 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Device Status: 0x0001
Self Powered
-----------------------------------------------------------
This happens when the device is recognized
------------------------------------------------------------------
USB device number 2 using ath79-ehci
Sep 8 16:40:57 OpenWrt kern.debug kernel: [ 188.600000] cdc_acm
1-1:1.0: interfaces are valid
Sep 8 16:40:57 OpenWrt kern.info kernel: [ 188.610000] cdc_acm
1-1:1.0: ttyACM0: USB ACM device
Sep 8 16:40:57 OpenWrt kern.debug kernel: [ 188.640000] cdc_acm
1-1:1.0: acm_ctrl_msg - rq 0x22, val 0x0, len 0x0, result 0
Sep 8 16:40:57 OpenWrt kern.debug kernel: [ 188.650000] cdc_acm
1-1:1.0: acm_ctrl_msg - rq 0x20, val 0x0, len 0x7, result 7
This goes one from urb 1 to 15 at the beginning when picocom is started
acm_submit_read_urb - urb 1
acm_submit_read_urb - urb 15
May 21 02:24:03 OpenWrt kern.debug kernel: [ 1351.270000] cdc_acm
1-1:1.0: acm_ctrl_msg - rq 0x20, val 0x0, len 0x7, result 7
This is after AT command is given
Sep 8 16:53:20 OpenWrt kern.debug kernel: [ 151.600000] cdc_acm
1-1:1.1: acm_tty_write - write 1
Sep 8 16:53:20 OpenWrt kern.debug kernel: [ 151.600000] cdc_acm
1-1:1.1: acm_write_start - susp_count 0
-----------------------------------------
USB SNOOP LOG OUTPUT
-------------------------------------------
[7 ms] UsbSnoop - FilterAddDevice(a62bd748) : DriverObject 88a41d98,
pdo 88c40de8
[7 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_LEGACY_BUS_INFORMATION)
[7 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_LEGACY_BUS_INFORMATION)
[7 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_RESOURCE_REQUIREMENTS)
[7 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_RESOURCE_REQUIREMENTS)
[7 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_FILTER_RESOURCE_REQUIREMENTS)
[7 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_FILTER_RESOURCE_REQUIREMENTS)
[7 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP (IRP_MN_START_DEVICE)
[7 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_START_DEVICE)
[8 ms] UsbSnoop - FilterDispatchAny(a62b8fd2) : IRP_MJ_SYSTEM_CONTROL
[9 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[9 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[9 ms] UsbSnoop - FilterDispatchAny(a62b8fd2) : IRP_MJ_INTERNAL_DEVICE_CONTROL
[9 ms] UsbSnoop - FdoHookDispatchInternalIoctl(a62b91ea) :
fdo=88c83030, Irp=88a53d30, IRQL=0
[9 ms] >>> URB 1 going down >>>
-- URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE:
TransferBufferLength = 00000012
TransferBuffer = 88b180a8
TransferBufferMDL = 00000000
Index = 00000000
DescriptorType = 00000001 (USB_DEVICE_DESCRIPTOR_TYPE)
LanguageId = 00000000
[13 ms] UsbSnoop - MyInternalIOCTLCompletion(a62b9126) :
fido=00000000, Irp=88a53d30, Context=88a65a28, IRQL=2
[13 ms] <<< URB 1 coming back <<<
-- URB_FUNCTION_CONTROL_TRANSFER:
PipeHandle = 89132348
TransferFlags = 0000003b (USBD_TRANSFER_DIRECTION_IN,
USBD_SHORT_TRANSFER_OK)
TransferBufferLength = 00000012
TransferBuffer = 88b180a8
TransferBufferMDL = 88aed780
00000000: 12 01 10 01 02 00 00 40 26 1a 91 9d 00 00 00 00
00000010: 01 01
UrbLink = 00000000
SetupPacket =
00000000: 80 06 00 01 00 00 12 00
[13 ms] UsbSnoop - FilterDispatchAny(a62b8fd2) : IRP_MJ_INTERNAL_DEVICE_CONTROL
[13 ms] UsbSnoop - FdoHookDispatchInternalIoctl(a62b91ea) :
fdo=88c83030, Irp=88a53d30, IRQL=0
[13 ms] >>> URB 2 going down >>>
-- URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE:
TransferBufferLength = 00000009
TransferBuffer = 88a589d0
TransferBufferMDL = 00000000
Index = 00000000
DescriptorType = 00000002 (USB_CONFIGURATION_DESCRIPTOR_TYPE)
LanguageId = 00000000
[17 ms] UsbSnoop - MyInternalIOCTLCompletion(a62b9126) :
fido=00000000, Irp=88a53d30, Context=88a65a28, IRQL=2
[17 ms] <<< URB 2 coming back <<<
-- URB_FUNCTION_CONTROL_TRANSFER:
PipeHandle = 89132348
TransferFlags = 0000000b (USBD_TRANSFER_DIRECTION_IN,
USBD_SHORT_TRANSFER_OK)
TransferBufferLength = 00000009
TransferBuffer = 88a589d0
TransferBufferMDL = 8a9bb5f0
00000000: 09 02 43 00 02 01 00 c0 20
UrbLink = 00000000
SetupPacket =
00000000: 80 06 00 02 00 00 09 00
[17 ms] UsbSnoop - FilterDispatchAny(a62b8fd2) : IRP_MJ_INTERNAL_DEVICE_CONTROL
[17 ms] UsbSnoop - FdoHookDispatchInternalIoctl(a62b91ea) :
fdo=88c83030, Irp=88a53d30, IRQL=0
[17 ms] >>> URB 3 going down >>>
-- URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE:
TransferBufferLength = 00000043
TransferBuffer = 890789f0
TransferBufferMDL = 00000000
Index = 00000000
DescriptorType = 00000002 (USB_CONFIGURATION_DESCRIPTOR_TYPE)
LanguageId = 00000000
[22 ms] UsbSnoop - MyInternalIOCTLCompletion(a62b9126) :
fido=00000000, Irp=88a53d30, Context=88a65a28, IRQL=2
[22 ms] <<< URB 3 coming back <<<
-- URB_FUNCTION_CONTROL_TRANSFER:
PipeHandle = 89132348
TransferFlags = 0000000b (USBD_TRANSFER_DIRECTION_IN,
USBD_SHORT_TRANSFER_OK)
TransferBufferLength = 00000043
TransferBuffer = 890789f0
TransferBufferMDL = 8a9bb5f0
00000000: 09 02 43 00 02 01 00 c0 20 09 04 00 00 01 02 02
00000010: 01 00 05 24 00 09 01 05 24 01 03 01 04 24 02 0f
00000020: 05 24 06 00 01 07 05 86 03 40 00 01 09 04 01 00
00000030: 02 0a 00 00 00 07 05 84 02 40 00 00 07 05 05 02
00000040: 40 00 00
UrbLink = 00000000
SetupPacket =
00000000: 80 06 00 02 00 00 43 00
[22 ms] UsbSnoop - FilterDispatchAny(a62b8fd2) : IRP_MJ_INTERNAL_DEVICE_CONTROL
[22 ms] UsbSnoop - FdoHookDispatchInternalIoctl(a62b91ea) :
fdo=88c83030, Irp=88a53d30, IRQL=0
[22 ms] >>> URB 4 going down >>>
-- URB_FUNCTION_SELECT_CONFIGURATION:
ConfigurationDescriptor = 0x890789f0 (configure)
ConfigurationDescriptor : bLength = 9
ConfigurationDescriptor : bDescriptorType = 0x00000002
ConfigurationDescriptor : wTotalLength = 0x00000043
ConfigurationDescriptor : bNumInterfaces = 0x00000002
ConfigurationDescriptor : bConfigurationValue = 0x00000001
ConfigurationDescriptor : iConfiguration = 0x00000000
ConfigurationDescriptor : bmAttributes = 0x000000c0
ConfigurationDescriptor : MaxPower = 0x00000020
ConfigurationHandle = 0x00000000
Interface[0]: Length = 36
Interface[0]: InterfaceNumber = 0
Interface[0]: AlternateSetting = 0
Interface[1]: Length = 56
Interface[1]: InterfaceNumber = 1
Interface[1]: AlternateSetting = 0
[77 ms] UsbSnoop - MyInternalIOCTLCompletion(a62b9126) :
fido=00000000, Irp=88a53d30, Context=88a65a28, IRQL=0
[77 ms] <<< URB 4 coming back <<<
-- URB_FUNCTION_SELECT_CONFIGURATION:
ConfigurationDescriptor = 0x890789f0 (configure)
ConfigurationDescriptor : bLength = 9
ConfigurationDescriptor : bDescriptorType = 0x00000002
ConfigurationDescriptor : wTotalLength = 0x00000043
ConfigurationDescriptor : bNumInterfaces = 0x00000002
ConfigurationDescriptor : bConfigurationValue = 0x00000001
ConfigurationDescriptor : iConfiguration = 0x00000000
ConfigurationDescriptor : bmAttributes = 0x000000c0
ConfigurationDescriptor : MaxPower = 0x00000020
ConfigurationHandle = 0x88a5a710
Interface[0]: Length = 36
Interface[0]: InterfaceNumber = 0
Interface[0]: AlternateSetting = 0
Interface[0]: Class = 0x00000002
Interface[0]: SubClass = 0x00000002
Interface[0]: Protocol = 0x00000001
Interface[0]: InterfaceHandle = 0x889aae88
Interface[0]: NumberOfPipes = 1
Interface[0]: Pipes[0] : MaximumPacketSize = 0x00000040
Interface[0]: Pipes[0] : EndpointAddress = 0x00000086
Interface[0]: Pipes[0] : Interval = 0x00000001
Interface[0]: Pipes[0] : PipeType = 0x00000003
(UsbdPipeTypeInterrupt)
Interface[0]: Pipes[0] : PipeHandle = 0x889aaea4
Interface[0]: Pipes[0] : MaxTransferSize = 0x00001000
Interface[0]: Pipes[0] : PipeFlags = 0x00000000
Interface[1]: Length = 56
Interface[1]: InterfaceNumber = 1
Interface[1]: AlternateSetting = 0
Interface[1]: Class = 0x0000000a
Interface[1]: SubClass = 0x00000000
Interface[1]: Protocol = 0x00000000
Interface[1]: InterfaceHandle = 0x8a996378
Interface[1]: NumberOfPipes = 2
Interface[1]: Pipes[0] : MaximumPacketSize = 0x00000040
Interface[1]: Pipes[0] : EndpointAddress = 0x00000084
Interface[1]: Pipes[0] : Interval = 0x00000000
Interface[1]: Pipes[0] : PipeType = 0x00000002 (UsbdPipeTypeBulk)
Interface[1]: Pipes[0] : PipeHandle = 0x8a996394
Interface[1]: Pipes[0] : MaxTransferSize = 0x00001000
Interface[1]: Pipes[0] : PipeFlags = 0x00000000
Interface[1]: Pipes[1] : MaximumPacketSize = 0x00000040
Interface[1]: Pipes[1] : EndpointAddress = 0x00000005
Interface[1]: Pipes[1] : Interval = 0x00000000
Interface[1]: Pipes[1] : PipeType = 0x00000002 (UsbdPipeTypeBulk)
Interface[1]: Pipes[1] : PipeHandle = 0x8a9963b4
Interface[1]: Pipes[1] : MaxTransferSize = 0x00001000
Interface[1]: Pipes[1] : PipeFlags = 0x00000000
[77 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[77 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[78 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_PNP_DEVICE_STATE)
[78 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_PNP_DEVICE_STATE)
[78 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_DEVICE_RELATIONS)
[78 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_DEVICE_RELATIONS)
[85 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[85 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[86 ms] UsbSnoop - FilterDispatchAny(a62b8fd2) : IRP_MJ_INTERNAL_DEVICE_CONTROL
[86 ms] UsbSnoop - FdoHookDispatchInternalIoctl(a62b91ea) :
fdo=88c83030, Irp=88ae1d28, IRQL=0
[86 ms] >>> URB 5 going down >>>
-- URB_FUNCTION_CLASS_INTERFACE:
TransferFlags = 00000000 (USBD_TRANSFER_DIRECTION_OUT,
~USBD_SHORT_TRANSFER_OK)
TransferBufferLength = 00000000
TransferBuffer = 00000000
TransferBufferMDL = 00000000
no data supplied
UrbLink = 00000000
RequestTypeReservedBits = 00000000
Request = 000000ca
Value = 00000000
Index = 00000000
[2350 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[2350 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[10055 ms] UsbSnoop - MyInternalIOCTLCompletion(a62b9126) :
fido=00000000, Irp=88ae1d28, Context=88a65a28, IRQL=2
[10056 ms] <<< URB 5 coming back <<<
-- URB_FUNCTION_CONTROL_TRANSFER:
PipeHandle = 89132348
TransferFlags = 0000000a (USBD_TRANSFER_DIRECTION_OUT,
USBD_SHORT_TRANSFER_OK)
TransferBufferLength = 00000000
TransferBuffer = 00000000
TransferBufferMDL = 00000000
UrbLink = 00000000
SetupPacket =
00000000: 21 ca 00 00 00 00 00 00
[10056 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[10056 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[10057 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_DEVICE_RELATIONS)
[10057 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_DEVICE_RELATIONS)
[12155 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[12155 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_CAPABILITIES)
[99082 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_DEVICE_RELATIONS)
[99082 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_DEVICE_RELATIONS)
[99082 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_DEVICE_RELATIONS)
[99082 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_QUERY_DEVICE_RELATIONS)
[99144 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_SURPRISE_REMOVAL)
[99144 ms] UsbSnoop - FdoHookDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_SURPRISE_REMOVAL)
[99222 ms] UsbSnoop - FilterDispatchPnp(a62bd45c) : IRP_MJ_PNP
(IRP_MN_REMOVE_DEVICE)
--
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