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c usb

  1. jthemis

    macOS USB devices returns kIOReturnExclusiveAccess replug on Max OS 10.13.4

    I have been unable to figure out why the call UsbDeviceOpen() returns kIOReturnExclusiveAccess after I unplug and replug. Design: 1. On thread running the CFRunLoop() that detects the adds/removes of devices 2. 2nd Thread that does the Async reads and writes. When thread 1 receives the...
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