You can use "CY_U3P_DMA_TYPE_AUTO_SIGNAL" to get the notification of the events.
For more details, please refer to "USBBulkLoopAutoSignal" example project.
is there something similar to CY_U3P_DMA_TYPE_AUTO_MANY_TO_ONE?
It looks like we don't have that option for AUTO MANY to ONE channel.
We may need to use MANUAL MANY to ONE to get notifications.