IPC_MEM_MUX_IP_CH_IF_ID
if (index == IPC_MEM_MUX_IP_CH_IF_ID)
index == IPC_MEM_MUX_IP_CH_IF_ID)
cfg->instance_id = IPC_MEM_MUX_IP_CH_IF_ID;
chnl->if_id == IPC_MEM_MUX_IP_CH_IF_ID;
if (pipe->channel->if_id == IPC_MEM_MUX_IP_CH_IF_ID)
if (channel->if_id == IPC_MEM_MUX_IP_CH_IF_ID)