what is the callstack for each call? Put a breakpoint on your IRP_MJ_CREATE
dispatch routine and then run the "kb" command. Then on the second hit on
the breakpoint, run kb again and compare the stacks.
What class is your device installed under? Is it enabling any device
interfaces? If so, is it a custom GUID or a system defined GUID? Any one of
these could lead to another component finding your device and trying to open
it.
d
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"zyx" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hi,
> I have a usb driver.I am trying to open it and close the file in my
> application.I call createfile and closefile only once in my
> application.but in my driver IRP_MJ_CREATE and IRP_MJ_CLOSE are called
> twice.It sounds very different to me.Is there any scenario that
> IRP_MJ_CREATE is called automatically without my application calling
> createfile.why is it calling twice??????
>
> This is my log
>
> 00000000 0.00000000 MYDRIVER - Entering DriverEntry: DriverObject
> 82D18030
> 00000001 0.00000531 MYDRIVER - Running under 2000
> 00000002 0.00021148 MYDRIVER - NEW Entering AddDevice: DriverObject
> 82D18030, pdo 826CBBA8 (Max Dev Count 5)
> 00000003 0.00023774 MYDRIVER - IoCreateDevice returned - 0
> 00000004 0.00024277 MYDRIVER - Successfully created 0 device object.
> 00000005 0.00027015 MYDRIVER - status of IoCreateSymbolicLink - 0
> 00000006 0.00035675 MYDRIVER - PNP Request
> (IRP_MN_QUERY_RESOURCE_REQUIREMENTS)
> 00000007 0.00041681 MYDRIVER - PNP Request
> (IRP_MN_FILTER_RESOURCE_REQUIREMENTS)
> 00000008 0.00042659 MYDRIVER - PNP Request (IRP_MN_START_DEVICE)
> 00000009 0.00061823 MYDRIVER-KEWAIT:103
> 00000010 0.00881146 MYDRIVER-status SendAwaitUrb:0
> 00000011 0.00881732 MYDRIVER-status SendAwaitUrb:0
> 00000012 0.00885811 MYDRIVER-KEWAIT:103
> 00000013 0.01478121 MYDRIVER-status SendAwaitUrb:0
> 00000014 0.01478540 MYDRIVER-status SendAwaitUrb:0
> 00000015 0.01481278 MYDRIVER-KEWAIT:103
> 00000016 0.02277859 MYDRIVER-status SendAwaitUrb:0
> 00000017 0.02278278 MYDRIVER-status SendAwaitUrb:0
> 00000018 0.02278949 MYDRIVER - Configuring device from BRCM
> 00000019 0.02281631 MYDRIVER-KEWAIT:103
> 00000020 0.03277679 MYDRIVER-status SendAwaitUrb:0
> 00000021 0.03278098 MYDRIVER-status SendAwaitUrb:0
> 00000022 0.03278601 MYDRIVER - Product is BRCM2037
> 00000023 0.03281199 MYDRIVER-KEWAIT:103
> 00000024 0.04477552 MYDRIVER-status SendAwaitUrb:0
> 00000025 0.04477971 MYDRIVER-status SendAwaitUrb:0
> 00000026 0.04478530 MYDRIVER - Serial number is 524444414442
> 00000027 0.04480709 MYDRIVER-KEWAIT:103
> 00000028 0.05177474 MYDRIVER-status SendAwaitUrb:0
> 00000029 0.05177893 MYDRIVER-status SendAwaitUrb:0
> 00000030 0.05180183 MYDRIVER-KEWAIT:103
> 00000031 0.06877326 MYDRIVER-status SendAwaitUrb:0
> 00000032 0.06877773 MYDRIVER-status SendAwaitUrb:0
> 00000033 0.06878360 MYDRIVER - BLUETOOTH Configuration Descriptor:
> 00000034 0.06878752 MYDRIVER - --------------------------
> 00000035 0.06879170 MYDRIVER - bLength 9
> 00000036 0.06879590 MYDRIVER - bDescriptorType 0x2
> 00000037 0.06880037 MYDRIVER - wTotalLength 0x37
> 00000038 0.06880455 MYDRIVER - bNumInterfaces 0x2
> 00000039 0.06880874 MYDRIVER - iConfiguration 0x0
> 00000040 0.06881294 MYDRIVER - bConfigurationValue 0x1
> 00000041 0.06881741 MYDRIVER - bmAttributes 0xc0
> 00000042 0.06882159 MYDRIVER - MaxPower 0x32
> 00000043 0.06882606 MYDRIVER - BLUETOOTH Interface Descriptor:
> 00000044 0.06882998 MYDRIVER - --------------------------
> 00000045 0.06883389 MYDRIVER - bLength 9
> 00000046 0.06883808 MYDRIVER - bDescriptorType 0x4
> 00000047 0.06884227 MYDRIVER - bInterfaceNumber 0x0
> 00000048 0.06884646 MYDRIVER - bAlternateSetting 0x0
> 00000049 0.06885065 MYDRIVER - bNumEndpoints 0x3
> 00000050 0.06885484 MYDRIVER - bInterfaceClass 0xe0
> 00000051 0.06885903 MYDRIVER - bInterfaceSubClass 0x1
> 00000052 0.06886322 MYDRIVER - bInterfaceProtocol 0x1
> 00000053 0.06886713 MYDRIVER - iInterface 0x0
> 00000054 0.06887133 MYDRIVER - interfaceindex0x1
> 00000055 0.06887551 MYDRIVER - BLUETOOTH Interface Descriptor:
> 00000056 0.06887943 MYDRIVER - --------------------------
> 00000057 0.06888334 MYDRIVER - bLength 9
> 00000058 0.06888752 MYDRIVER - bDescriptorType 0x4
> 00000059 0.06889172 MYDRIVER - bInterfaceNumber 0x1
> 00000060 0.06889591 MYDRIVER - bAlternateSetting 0x0
> 00000061 0.06890010 MYDRIVER - bNumEndpoints 0x0
> 00000062 0.06890429 MYDRIVER - bInterfaceClass 0xfe
> 00000063 0.06890848 MYDRIVER - bInterfaceSubClass 0x1
> 00000064 0.06891267 MYDRIVER - bInterfaceProtocol 0x1
> 00000065 0.06891658 MYDRIVER - iInterface 0x1
> 00000066 0.06892077 MYDRIVER - interfaceindex0x2
> 00000067 0.16381468 MYDRIVER-status SendAwaitUrb:0
> 00000068 0.16382138 MYDRIVER-status SendAwaitUrb:0
> 00000069 0.16382697 MYDRIVER - In StartInterruptUrb
> 00000070 0.16383144 MYDRIVER - interrupt polling is set to pending
> 00000071 0.16383535 MYDRIVER - Device not busy
> 00000072 0.16383982 MYDRIVER - After lock is acquired
> 00000073 0.16399543 MYDRIVER - To WORKING from STOPPED
> 00000074 0.16417757 MYDRIVER - PNP Request (IRP_MN_QUERY_CAPABILITIES)
> 00000075 0.16422534 MYDRIVER - PNP Request
> (IRP_MN_QUERY_PNP_DEVICE_STATE)
> 00000076 0.16423596 MYDRIVER - PNP Request
> (IRP_MN_QUERY_DEVICE_RELATIONS)
> 00000077 3.51514268 MYDRIVER - IRP_MJ_CREATE
> 00000078 3.51514983 MYDRIVER - In StartInterruptUrb
> 00000079 3.51515436 MYDRIVER - interrupt polling is already pending
> 00000080 3.51515865 MYDRIVER - Unable to start Interrupt URB; Device
> busy
> 00000081 3.51516318 MYDRIVER - Unable to start Interrupt URB; Device
> busy
> 00000082 3.51517487 MYDRIVER - IRP_MJ_CLEANUP
> 00000083 3.51518250 MYDRIVER-status :0
> 00000084 3.51518774 MYDRIVER - IRP_MJ_CLOSE
> 00000085 3.51519203 MYDRIVER- Inside stopInterruptUrb
> 00000086 3.51524067 MYDRIVER - Inside stopBulkinUrb
> 00000087 3.51526356 MYDRIVER - No queue elements for freeing.
> 00000088 3.51533651 MYDRIVER - IRP_MJ_CREATE
> 00000089 3.51534057 MYDRIVER - In StartInterruptUrb
> 00000090 3.51534486 MYDRIVER - interrupt polling is already pending
> 00000091 3.51534939 MYDRIVER - Unable to start Interrupt URB; Device
> busy
> 00000092 3.51535368 MYDRIVER - Unable to start Interrupt URB; Device
> busy
> 00000093 3.51911402 MYDRIVER - servicing OnInterrupt
> 00000094 3.51912379 MYDRIVER - Interrupt polling IRP 82912868 failed -
> C0000120 (USBD status C0010000)
> 00000095 3.51914978 MYDRIVER - Bulkin polling IRP 828D0978 failed -
> C0000120 (USBD status C0010000)
> 00000096 3.56396532 MYDRIVER - IRP_MJ_CLEANUP
> 00000097 3.56397510 MYDRIVER-status :0
> 00000098 3.56398082 MYDRIVER - IRP_MJ_CLOSE
> 00000099 3.56398582 MYDRIVER - No queue elements for freeing.
> 00000100 7.91411686 MYDRIVER - PNP Request
> (IRP_MN_QUERY_DEVICE_RELATIONS)
> 00000101 7.91412926 MYDRIVER - PNP Request
> (IRP_MN_QUERY_DEVICE_RELATIONS)
> 00000102 7.91414309 MYDRIVER - PNP Request (IRP_MN_SURPRISE_REMOVAL)
> 00000103 7.91414976 MYDRIVER - Inside stopdevice 1
> 00000104 7.91415691 MYDRIVER - Config descriptor 8290BDF0
> 00000105 7.91416121 MYDRIVER - To SURPRISEREMOVED from WORKING
> 00000106 7.92438555 MYDRIVER - PNP Request (IRP_MN_REMOVE_DEVICE)
> 00000107 7.92439508 MYDRIVER -HandleRemoveDevice oktouch 0
> 00000108 7.92439938 MYDRIVER - Inside stopdevice 0
> 00000109 7.92440510 MYDRIVER - To REMOVED from SURPRISEREMOVED
> 00000110 7.92445374 MYDRIVER - Inside DeleteInterruptUrb
> 00000111 7.92445850 MYDRIVER - Inside DeleteBulkinUrb
> 00000112 7.92451429 MYDRIVER - Entering DriverUnload: DriverObject
> 82D18030
> 00000113 7.92451954 MYDRIVER - Leaving DriverUnload: DriverObject
> 82D18030
> 00000000 0.00000000 MYDRIVER - Entering DriverEntry: DriverObject
> 82D18030
>
> thanks in advance
>
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