## Physical Device Driver Reference

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### ASYNC_STARTTRANSMIT (48h) - Behave as if XON Received

Category:
IOCTL_ASYNC (01h)
Function:
ASYNC_STARTTRANSMIT (48h)
Description:
Behave as if XON Received

Select an item:

    Description
    Parameter Packet Format
    Data Packet Format
    Returns
    Remarks

This function behaves as if an XON was received (starts transmitting).