enqueueIORequest(with:transactionList:transactionListCount:firstFrameNumber:options:completionHandler:)

Declaration

func enqueueIORequest(with data: NSMutableData, transactionList: UnsafeMutablePointer<IOUSBHostIsochronousTransaction>, transactionListCount: Int, firstFrameNumber: UInt64, options: IOUSBHostIsochronousTransferOptions = [], completionHandler: (@Sendable (IOReturn, UnsafeMutablePointer<IOUSBHostIsochronousTransaction>) -> Void)? = nil) throws

func enqueueIORequest(with data: NSMutableData, transactionList: UnsafeMutablePointer<IOUSBHostIsochronousTransaction>, transactionListCount: Int, firstFrameNumber: UInt64, options: IOUSBHostIsochronousTransferOptions = []) async throws -> (IOReturn, UnsafeMutablePointer<IOUSBHostIsochronousTransaction>)

Discussion

important:

You can call this method from synchronous code using a completion handler, as shown on this page, or you can call it as an asynchronous method that has the following declaration:

func enqueueIORequest(with data: NSMutableData, transactionList: UnsafeMutablePointer<IOUSBHostIsochronousTransaction>, transactionListCount: Int, firstFrameNumber: UInt64, options: IOUSBHostIsochronousTransferOptions = []) async throws -> (IOReturn, UnsafeMutablePointer<IOUSBHostIsochronousTransaction>)

For information about concurrency and asynchronous code in Swift, see Calling Objective-C APIs Asynchronously.

enqueueIORequest(with:transactionList:transactionListCount:firstFrameNumber:options:completionHandler:)

Declaration

Discussion

See Also

Instance Methods