Multi Channel DMA Intel® FPGA IP for PCI Express User Guide

ID 683821
Date 1/14/2022

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Document Table of Contents ifc_qdma_acquire_channels


Table 92.  
API API Description Input Parameters Return Values
int ifc_qdma_acquire_channels(struct ifc_qdma_device *qdev,int num)

This API acquires n number of channels from hardware. Once the channels acquired, user must call ifc_qdma_channel_get() to initialize the channels and use for DMA.

qdev: QDMA device

num: Number of channels requested

Number of channels acquired successfully.

negative otherwise