i2s_chan_info_t struct

I2S port id.

I2S role, I2S_ROLE_MASTER or I2S_ROLE_SLAVE.

I2S channel direction.

I2S channel communication mode.

I2S pair channel handle in duplex mode, always NULL in simplex mode.

Total size of all the allocated DMA buffers - 0 if the channel has not been initialized - non-zero if the channel has been initialized.