feat(spi_slave): append trans_len field in trans_desc to show length actually transferred.

2017-09-30 19:59:05 +08:00
parent d3bb9de36a
commit 8e31a36562
3 changed files with 17 additions and 6 deletions
@@ -53,6 +53,7 @@ typedef struct {
 */
 struct spi_slave_transaction_t {
    size_t length;                  ///< Total data length, in bits
+    size_t trans_len;               ///< Transaction data length, in bits
    const void *tx_buffer;          ///< Pointer to transmit buffer, or NULL for no MOSI phase
    void *rx_buffer;                ///< Pointer to receive buffer, or NULL for no MISO phase
    void *user;                     ///< User-defined variable. Can be used to store eg transaction ID.