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-rw-r--r--src/include/spi-generic.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/spi-generic.h b/src/include/spi-generic.h
index 77a3c09a79..acb22ec1d2 100644
--- a/src/include/spi-generic.h
+++ b/src/include/spi-generic.h
@@ -111,7 +111,8 @@ enum ctrlr_prot_type {
enum {
/* Deduct the command length from the spi_crop_chunk() calculation for
- sizing a transaction. */
+ sizing a transaction. If SPI_CNTRLR_DEDUCT_OPCODE_LEN is set, only
+ the bytes after the command byte will be deducted. */
SPI_CNTRLR_DEDUCT_CMD_LEN = 1 << 0,
/* Remove the opcode size from the command length used in the
spi_crop_chunk() calculation. Controllers which have a dedicated