This is an addition to the last fix for adding the length byte. With hardware
FCS enabled we are obliged to set the length including the 2 bytes for the
FCS. Our skb does only have the len for the data it contains so we need to
adjust it for the length byte.
Signed-off-by: Stefan Schmidt <ste...@datenfreihafen.org>
---
drivers/ieee802154/cc2420.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/ieee802154/cc2420.c b/drivers/ieee802154/cc2420.c
index fd072ce..3cc2724 100644
--- a/drivers/ieee802154/cc2420.c
+++ b/drivers/ieee802154/cc2420.c
@@ -213,6 +213,8 @@ static int
cc2420_write_txfifo(struct cc2420_local *lp, u8 *data, u8 len)
{
int status;
+ /* Length byte must include FCS even if calculated in hardware */
+ int len_byte = len + 2;
struct spi_message msg;
struct spi_transfer xfer_head = {
.len = 1,
@@ -221,7 +223,7 @@ cc2420_write_txfifo(struct cc2420_local *lp, u8 *data, u8
len)
};
struct spi_transfer xfer_len = {
.len = 1,
- .tx_buf = &len,
+ .tx_buf = &len_byte,
};
struct spi_transfer xfer_buf = {
.len = len,
--
1.7.1
------------------------------------------------------------------------------
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