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The ioctlUSE_ZERO_COPY_TX request code is used in a call to FreeRTOS_ioctl() to configure a peripheral to use the interrupt driven zero copy transfer mode for writes. Note this request code will result in the peripheral's interrupt being enabled, and the peripheral's interrupt priority being set to the lowest possible. The ioctlSET_INTERRUPT_PRIORITY request code can be used to raise the peripheral's priority if necessary.
Example UsageExamples are also provided on the FreeRTOS_write() API function documentation page.
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