Hi Eric, > +static void nfc_check_pres_work(struct work_struct *work) > +{ > + struct nfc_dev *dev = container_of(work, struct nfc_dev, > + check_pres_work); > + int rc; > + > + device_lock(&dev->dev); > + > + if (dev->activated_target_idx != NFC_TARGET_IDX_NONE && > + timer_pending(&dev->check_pres_timer) == 0) { > + rc = dev->ops->check_presence(dev, > dev->activated_target_idx); > + if (!rc) { > + mod_timer(&dev->check_pres_timer, jiffies + > + > msecs_to_jiffies(NFC_CHECK_PRES_FREQ_MS)); > + } else { > + nfc_target_lost(dev, dev->activated_target_idx); I'm unable to find the definition of the function nfc_target_lost. Thanks & BR, Ilan -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html