CA8210_SPI_BUF_SIZE
u8 response[CA8210_SPI_BUF_SIZE];
u8 command[CA8210_SPI_BUF_SIZE];
if (len > CA8210_SPI_BUF_SIZE || len < 2) {
u8 tx_buf[CA8210_SPI_BUF_SIZE];
u8 tx_in_buf[CA8210_SPI_BUF_SIZE];
if (len > CA8210_SPI_BUF_SIZE) {
u8 retry_buffer[CA8210_SPI_BUF_SIZE];
memcpy(retry_buffer, cas_ctl->tx_buf, CA8210_SPI_BUF_SIZE);
CA8210_SPI_BUF_SIZE
memset(cas_ctl->tx_buf, SPI_IDLE, CA8210_SPI_BUF_SIZE);
memset(cas_ctl->tx_in_buf, SPI_IDLE, CA8210_SPI_BUF_SIZE);