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| author | Vincent Mailhol <mailhol.vincent@wanadoo.fr> | 2022-07-19 16:35:49 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2022-07-20 09:27:37 +0200 |
| commit | 3e5c291c7942d0909a48bc5ec1b9bba136465166 (patch) | |
| tree | 4b20cdd0fac2827c886243ecb1a897638e879f67 /drivers/net/can/cc770/cc770.c | |
| parent | can: error: specify the values of data[5..7] of CAN error frames (diff) | |
| download | linux-3e5c291c7942d0909a48bc5ec1b9bba136465166.tar.xz linux-3e5c291c7942d0909a48bc5ec1b9bba136465166.zip | |
can: add CAN_ERR_CNT flag to notify availability of error counter
Add a dedicated flag in uapi/linux/can/error.h to notify the userland
that fields data[6] and data[7] of the CAN error frame were
respectively populated with the tx and rx error counters.
For all driver tree-wide, set up this flags whenever needed.
Link: https://lore.kernel.org/all/20220719143550.3681-12-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/cc770/cc770.c')
| -rw-r--r-- | drivers/net/can/cc770/cc770.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c index bb7224cfc6ab..797a954bb1a0 100644 --- a/drivers/net/can/cc770/cc770.c +++ b/drivers/net/can/cc770/cc770.c @@ -512,6 +512,7 @@ static int cc770_err(struct net_device *dev, u8 status) /* Use extended functions of the CC770 */ if (priv->control_normal_mode & CTRL_EAF) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = cc770_read_reg(priv, tx_error_counter); cf->data[7] = cc770_read_reg(priv, rx_error_counter); } |