jwang12340 commented on code in PR #18039:
URL: https://github.com/apache/nuttx/pull/18039#discussion_r2752965769
##########
drivers/can/ctucanfd_pci.c:
##########
@@ -800,6 +803,70 @@ static int ctucanfd_chrdev_txconfirm(struct can_dev_s
*dev, int idx)
}
#endif
+/*****************************************************************************
+ * Name: ctucanfd_chrdev_cancel
+ *
+ * Description:
+ * Cancel one can message.
+ *
+ * Input Parameters:
+ * dev - An instance of the "upper half" can driver state structure.
+ * msg - One can message.
+ *
+ * Returned Value:
+ * true on success; zero on failure.
+ *****************************************************************************/
+
+static bool ctucanfd_chrdev_cancel(FAR struct can_dev_s *dev,
+ FAR struct can_msg_s *msg)
+{
+ FAR struct ctucanfd_can_s *priv = (FAR struct ctucanfd_can_s *)dev;
+ uint32_t regval;
+ uint32_t offset;
+ uint32_t id;
+ int i;
+
+ /* Find TXB to be canceled */
+
+ for (i = 0; i < CTUCANFD_TXBUF_CNT; i++)
+ {
+ offset = CTUCANFD_TXT1 + CTUCANFD_TXT_SIZE * i;
+ id = ctucanfd_getreg(priv, offset + CTUCANFD_TXBUF_ID);
Review Comment:
Thanks for the advice, add a new commit to updated it
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