s the RX to send an interrupt to the upstream TX device, useful for signaling the TX that it needs to do some checks for changes in downstream devices or a loss of link training.</p>
<p>For RX interrupt handling of HPD events or events that happen internal to the RX, the user hardware design must contain an interrupt controller which the DisplayPort RX instance's interrupt signal is connected to. The user application must enable interrupts in the system and set up the interrupt controller such that the XDp_