XCode HID USB Development on 64bit.  Writepipe Failing to send data

Hi,
I'm using writepipe for data transfer to my custom HID device on USB.  When I build the app in Xcode on OSX Lion and boot my Mac in 32 bit mode then the HID data transfer with writepipe works fine.  But when I boot my Mac in 64 bit mode and run my app in XCode writepipe returns with errors "404f" and "2ed".
I've had a various look at other forums and there's nothing out there helpful.  Why would writepipe work in 32 bit mode but not in 64 bit mode?
Are there alternatives to writepipe? I don't  want to get a USB analyzer to see what the data is doing.  Is this a timing issue if so what does Lion 64 bit do different to Lion 32 bit?
Regards,
Saj

K T wrote:
Have you used USBProber to sniff the connection for clues?
Hi,
I have tried the USB Prober (but this doesn't seem to give any useful feedback) and also the usbtracer program.  I have looked at various forums online and below is a common response.
" The main architectureal difference between the 27" i7 iMac (as well as any of the new MacBook Pro's 15" and 17") is that there are no OHCI or UHCI USB controllers;  there are 2 EHCI controllers, along with 2 high speed hubs inside the machine.  That means that any device that you attach will be attached to the high speed hub.    All devices are still supported, but now they are ultimately attached to the high speed controller and so the low level timing might be different.  They are also attached through a hub and not directly to the root hub (even high speed devices).
The errors that you describe indicate that the device is either not responding to the requests or stalling the requests.
My question is why can I transfer data in 32 bit mode on the same machine, yet in 64 bit I cannot.  The above response doesnt seem to answer that because writepipe works fine in 32 bit mode on the same machine.  Is USB timing different in 32 bit mode regardless of the architectureal difference ? 
Below is snippet of the usbtracer tool output:
32521.035    EHCI::powerChangeDone          (0xffffff8007dae000) from state (4) to state (4)
32521.060 -> Controller::Control Start      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0, (out)  bmRequestType: 0x23, bRequest: 0x03, wValue: 0x0004, wIndex: 0x0003, wLength: 0x0000
32521.095 <- Controller::Control End        (0xffffff8007dae000) error 0x0
32521.114    EHCI::Primary Interrupt        (0xffffff8007dae000) enabledInterrupts 0x0000001f activeInterrupts 0x00000001, Frame: 206478, microframe: 1
32521.164 -> EHCI::Begin PollInterrupts     (0xffffff8007dae000) _errorInterrupt 0 _completeInterrupt 1 _portChangeInterrupt 0
32521.165    EHCI::PollInterrupts           (0xffffff8007dae000) Completion Interrupt
32521.168 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32521.169 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32521.170 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32521.170 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32521.175    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32521.176 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32521.177 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x40 status 0x0
32521.178    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32521.178 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32521.189    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f8096fb25, status:  0x0
32521.194 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x0 status 0x0
32521.208    EHCI::PollInterrupts           (0xffffff8007dae000) Frame Rollover Interrupt
32521.209 <- EHCI::End PollInterrupts       (0xffffff8007dae000)
32521.260    EHCI::powerChangeDone          (0xffffff8007dae000) from state (4) to state (4)
32523.382    OutstandingIO::HubDecrement    (0xffffff8007f6cc00) serial #: 549, IO: 1, needInterruptRead: no
32523.505    EHCI::Primary Interrupt        (0xffffff8007dae000) enabledInterrupts 0x0000001f activeInterrupts 0x00000003, Frame: 206480, microframe: 1
32523.531 -> EHCI::Begin PollInterrupts     (0xffffff8007dae000) _errorInterrupt 2 _completeInterrupt 1 _portChangeInterrupt 0
32523.532    EHCI::PollInterrupts           (0xffffff8007dae000) Error Interrupt
32523.536 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32523.537 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.538 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32523.539 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.556    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f80973952, status:  0xe00002ed
32523.562    Controller::Interrupt Complete (0xffffff8007dae000) Bus: 0xfa, Address: 5, Endpoint: 1, (in)  actual: 0, status: 0xe00002ed
32523.570    Controller::CompleteTS         (0xffffff8007dae000) completion: 0xffffff7f80af89c2, status:  0xe00002ed
32523.573    HID::InterruptRead             (0xffffff8009648400) error: 0xe00002ed, _deviceHasBeenDisconnected = 0
32523.578    HID::InterruptRead             (0xffffff8009648400) Checking to see if HID device is still connected
32523.617 -> Controller::Interrupt Start    (0xffffff8007dae000) Bus: 0xfa, Address: 5, Endpoint: 1, (in)  reqCount: 50
32523.624 <- Controller::Interrupt End      (0xffffff8007dae000) error 0x0, (completion timeout: 0, noData timeout: 0)
32523.625    HID::RearmInterruptRead        (0xffffff8009648400) returning error 0x0
32523.635    EHCI::PollInterrupts           (0xffffff8007dae000) Completion Interrupt
32523.636 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32523.636 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.637 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32523.637 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.645 <- EHCI::End PollInterrupts       (0xffffff8007dae000)
32523.706    HID::CheckForDeadDevice        (0xffffff8009648400) _retryCount: 3, _deviceHasBeenDisconnected = 0
32523.736 -> Controller::Control Start      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0, (in)  bmRequestType: 0xa3, bRequest: 0x00, wValue: 0x0000, wIndex: 0x0003, wLength: 0x0004
32523.738    EHCI::powerChangeDone          (0xffffff8007dae000) from state (4) to state (4)
32523.767 <- Controller::Control End        (0xffffff8007dae000) error 0x0
32523.861    EHCI::Primary Interrupt        (0xffffff8007dae000) enabledInterrupts 0x0000001f activeInterrupts 0x00000001, Frame: 206480, microframe: 1
32523.901 -> EHCI::Begin PollInterrupts     (0xffffff8007dae000) _errorInterrupt 0 _completeInterrupt 1 _portChangeInterrupt 0
32523.901    EHCI::PollInterrupts           (0xffffff8007dae000) Completion Interrupt
32523.902 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32523.903 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.903 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32523.903 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.904    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32523.905 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32523.905 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x60 status 0x0
32523.906    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32523.906 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32523.906 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x40 status 0x0
32523.906    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32523.906 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32523.909    Controller::Packet Handler     (0x0000000000000000) Bus: 0xfa, Address: 2, Endpoint: 0, (out)  length: 4, data: 0x1101000000000000 0x0000000000000000
32523.913    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f8096fb25, status:  0x0
32523.916 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x0 status 0x0
32523.923 <- EHCI::End PollInterrupts       (0xffffff8007dae000)
32523.939    HID::CheckForDeadDevice        (0xffffff8009648400) GetDeviceInformation returned info: 0x48, retryCount: 3
32523.939    HID::CheckForDeadDevice        (0xffffff8009648400) device is still connected (and enabled) _retryCount: 3
32523.940    HID::CheckForDeadDevice        (0xffffff8009648400) Still connected but retry count (2) not reached
32523.949    EHCI::powerChangeDone          (0xffffff8007dae000) from state (4) to state (4)
32526.618    EHCI::Primary Interrupt        (0xffffff8007dae000) enabledInterrupts 0x0000001f activeInterrupts 0x00000003, Frame: 206483, microframe: 1
32526.665 -> EHCI::Begin PollInterrupts     (0xffffff8007dae000) _errorInterrupt 2 _completeInterrupt 1 _portChangeInterrupt 0
32526.666    EHCI::PollInterrupts           (0xffffff8007dae000) Error Interrupt
32526.672 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32526.672 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32526.673 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32526.674 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32526.689    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f80973952, status:  0xe00002ed
32526.694    Controller::Interrupt Complete (0xffffff8007dae000) Bus: 0xfa, Address: 5, Endpoint: 1, (in)  actual: 0, status: 0xe00002ed
32526.699    Controller::CompleteTS         (0xffffff8007dae000) completion: 0xffffff7f80af89c2, status:  0xe00002ed
32526.702    HID::InterruptRead             (0xffffff8009648400) error: 0xe00002ed, _deviceHasBeenDisconnected = 0
32526.705    HID::InterruptRead             (0xffffff8009648400) Checking to see if HID device is still connected
32526.741 -> Controller::Interrupt Start    (0xffffff8007dae000) Bus: 0xfa, Address: 5, Endpoint: 1, (in)  reqCount: 50
32526.748 <- Controller::Interrupt End      (0xffffff8007dae000) error 0x0, (completion timeout: 0, noData timeout: 0)
32526.749    HID::RearmInterruptRead        (0xffffff8009648400) returning error 0x0
32526.759    EHCI::PollInterrupts           (0xffffff8007dae000) Completion Interrupt
32526.760 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32526.760 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32526.761 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32521.035    EHCI::powerChangeDone          (0xffffff8007dae000) from state (4) to state (4)
32521.060 -> Controller::Control Start      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0, (out)  bmRequestType: 0x23, bRequest: 0x03, wValue: 0x0004, wIndex: 0x0003, wLength: 0x0000
32521.095 <- Controller::Control End        (0xffffff8007dae000) error 0x0
32521.114    EHCI::Primary Interrupt        (0xffffff8007dae000) enabledInterrupts 0x0000001f activeInterrupts 0x00000001, Frame: 206478, microframe: 1
32521.164 -> EHCI::Begin PollInterrupts     (0xffffff8007dae000) _errorInterrupt 0 _completeInterrupt 1 _portChangeInterrupt 0
32521.165    EHCI::PollInterrupts           (0xffffff8007dae000) Completion Interrupt
32521.168 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32521.169 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32521.170 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32521.170 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32521.175    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32521.176 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32521.177 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x40 status 0x0
32521.178    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32521.178 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32521.189    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f8096fb25, status:  0x0
32521.194 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x0 status 0x0
32521.208    EHCI::PollInterrupts           (0xffffff8007dae000) Frame Rollover Interrupt
32521.209 <- EHCI::End PollInterrupts       (0xffffff8007dae000)
32521.260    EHCI::powerChangeDone          (0xffffff8007dae000) from state (4) to state (4)
32523.382    OutstandingIO::HubDecrement    (0xffffff8007f6cc00) serial #: 549, IO: 1, needInterruptRead: no
32523.505    EHCI::Primary Interrupt        (0xffffff8007dae000) enabledInterrupts 0x0000001f activeInterrupts 0x00000003, Frame: 206480, microframe: 1
32523.531 -> EHCI::Begin PollInterrupts     (0xffffff8007dae000) _errorInterrupt 2 _completeInterrupt 1 _portChangeInterrupt 0
32523.532    EHCI::PollInterrupts           (0xffffff8007dae000) Error Interrupt
32523.536 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32523.537 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.538 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32523.539 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.556    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f80973952, status:  0xe00002ed
32523.562    Controller::Interrupt Complete (0xffffff8007dae000) Bus: 0xfa, Address: 5, Endpoint: 1, (in)  actual: 0, status: 0xe00002ed
32523.570    Controller::CompleteTS         (0xffffff8007dae000) completion: 0xffffff7f80af89c2, status:  0xe00002ed
32523.573    HID::InterruptRead             (0xffffff8009648400) error: 0xe00002ed, _deviceHasBeenDisconnected = 0
32523.578    HID::InterruptRead             (0xffffff8009648400) Checking to see if HID device is still connected
32523.617 -> Controller::Interrupt Start    (0xffffff8007dae000) Bus: 0xfa, Address: 5, Endpoint: 1, (in)  reqCount: 50
32523.624 <- Controller::Interrupt End      (0xffffff8007dae000) error 0x0, (completion timeout: 0, noData timeout: 0)
32523.625    HID::RearmInterruptRead        (0xffffff8009648400) returning error 0x0
32523.635    EHCI::PollInterrupts           (0xffffff8007dae000) Completion Interrupt
32523.636 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32523.636 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.637 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32523.637 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.645 <- EHCI::End PollInterrupts       (0xffffff8007dae000)
32523.706    HID::CheckForDeadDevice        (0xffffff8009648400) _retryCount: 3, _deviceHasBeenDisconnected = 0
32523.736 -> Controller::Control Start      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0, (in)  bmRequestType: 0xa3, bRequest: 0x00, wValue: 0x0000, wIndex: 0x0003, wLength: 0x0004
32523.738    EHCI::powerChangeDone          (0xffffff8007dae000) from state (4) to state (4)
32523.767 <- Controller::Control End        (0xffffff8007dae000) error 0x0
32523.861    EHCI::Primary Interrupt        (0xffffff8007dae000) enabledInterrupts 0x0000001f activeInterrupts 0x00000001, Frame: 206480, microframe: 1
32523.901 -> EHCI::Begin PollInterrupts     (0xffffff8007dae000) _errorInterrupt 0 _completeInterrupt 1 _portChangeInterrupt 0
32523.901    EHCI::PollInterrupts           (0xffffff8007dae000) Completion Interrupt
32523.902 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32523.903 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.903 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32523.903 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32523.904    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32523.905 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32523.905 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x60 status 0x0
32523.906    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32523.906 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32523.906 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x40 status 0x0
32523.906    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f809754fe, status:  0x0
32523.906 -> Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 status 0x0 bufferSizeRemaining 0
32523.909    Controller::Packet Handler     (0x0000000000000000) Bus: 0xfa, Address: 2, Endpoint: 0, (out)  length: 4, data: 0x1101000000000000 0x0000000000000000
32523.913    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f8096fb25, status:  0x0
32523.916 <- Controller::PacketHandler      (0xffffff8007dae000) Bus: 0xfa, Address: 2, Endpoint: 0 todo 0x0 status 0x0
32523.923 <- EHCI::End PollInterrupts       (0xffffff8007dae000)
32523.939    HID::CheckForDeadDevice        (0xffffff8009648400) GetDeviceInformation returned info: 0x48, retryCount: 3
32523.939    HID::CheckForDeadDevice        (0xffffff8009648400) device is still connected (and enabled) _retryCount: 3
32523.940    HID::CheckForDeadDevice        (0xffffff8009648400) Still connected but retry count (2) not reached
32523.949    EHCI::powerChangeDone          (0xffffff8007dae000) from state (4) to state (4)
32526.618    EHCI::Primary Interrupt        (0xffffff8007dae000) enabledInterrupts 0x0000001f activeInterrupts 0x00000003, Frame: 206483, microframe: 1
32526.665 -> EHCI::Begin PollInterrupts     (0xffffff8007dae000) _errorInterrupt 2 _completeInterrupt 1 _portChangeInterrupt 0
32526.666    EHCI::PollInterrupts           (0xffffff8007dae000) Error Interrupt
32526.672 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32526.672 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32526.673 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
32526.674 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32526.689    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f80973952, status:  0xe00002ed
32526.694    Controller::Interrupt Complete (0xffffff8007dae000) Bus: 0xfa, Address: 5, Endpoint: 1, (in)  actual: 0, status: 0xe00002ed
32526.699    Controller::CompleteTS         (0xffffff8007dae000) completion: 0xffffff7f80af89c2, status:  0xe00002ed
32526.702    HID::InterruptRead             (0xffffff8009648400) error: 0xe00002ed, _deviceHasBeenDisconnected = 0
32526.705    HID::InterruptRead             (0xffffff8009648400) Checking to see if HID device is still connected
32526.741 -> Controller::Interrupt Start    (0xffffff8007dae000) Bus: 0xfa, Address: 5, Endpoint: 1, (in)  reqCount: 50
32526.748 <- Controller::Interrupt End      (0xffffff8007dae000) error 0x0, (completion timeout: 0, noData timeout: 0)
32526.749    HID::RearmInterruptRead        (0xffffff8009648400) returning error 0x0
32526.759    EHCI::PollInterrupts           (0xffffff8007dae000) Completion Interrupt
32526.760 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e300 pTD 0x0
32526.760 <- Controller::Return Isoc Done Q End (0xffffff8007dae000)
32526.761 -> Controller::Return Isoc Done Q Start (0xffffff8007dae000) pEP 0x7f9e400 pTD 0x0
The error "0xe00002ed" is listed above: 
32523.556    Controller::Complete           (0xffffff8007dae000) completion: 0xffffff7f80973952, status:  0xe00002ed
32523.562    Controller::Interrupt Complete (0xffffff8007dae000) Bus: 0xfa, Address: 5, Endpoint: 1, (in)  actual: 0, status: 0xe00002ed
32523.570    Controller::CompleteTS         (0xffffff8007dae000) completion: 0xffffff7f80af89c2, status:  0xe00002ed
32523.573    HID::InterruptRead             (0xffffff8009648400) error: 0xe00002ed, _deviceHasBeenDisconnected = 0
What does any of this mean? I do not want to re-write my app but rather would like to understand what WRITEPIPE is doing different in 32 and 64 bit. 
Regards,
Saj

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    Follow or contact me at...
    &nbsp&nbsp
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