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Start method of UsbController class retruns false


#1

I am trying to develop Usb composite device with 3 interfaces: standard keyboard, multimedia Keyboard, mouse on Fez Spider. Everything works fine when I am trying to add any 2 interfaces. When I am running the code with 3 interfaces:
[ul] UsbController.Start method retrun false. [/ul]
[ul] There is no traffic on USB bus, no enumeration attempt. [/ul]
[ul] UsbController.ConfigurationError proprty reports ConfigOk. [/ul]

Is there any limitation for a number of descriptors or number of interfaces in configuration?

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HalSystemInfo.halVendorInfo: Microsoft Copyright © Microsoft Corporation. All rig
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ClrInfo.clrVersion: 4.2.0.0
ClrInfo.clrVendorInfo: Microsoft Copyright © Microsoft Corporation. All rig
ClrInfo.targetFrameworkVersion: 4.2.0.0
SolutionReleaseInfo.solutionVersion: 4.2.10.1
SolutionReleaseInfo.solutionVendorInfo: Copyright © GHI Electronics, LLC
SoftwareVersion.BuildDate: May 1 2013
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