Hi Samuel, > > Increase NCI deactivate timeout from 5 sec to 30 sec. > > NCI deactivate procedure might take a long time, > > depending on the local and remote parameters. > 30 seconds sounds like a huge delay for receiving a reply to > such command. > Would you care explaining how we can get that long of a timeout ? The controller in the Reader side uses a value called nRETRY (see NFC Forum Digital spec). This value is an internal implementation, valid range is 2 to 5. This value determines the number of re-transmissions. The controller in the Tag side uses a value called FWI - Frame Waiting time Integer (see NFC Forum Digital spec). This value is an internal implementation, valid range is 1 to 14. This value determines (via some formula) the FWT - Frame Waiting Time, which is a timout. Max FWT value can be almost 5sec. So, the total max timeout can be 5sec for the first packet + 5sec for each of the 5 re-transmissions = 5 + 5x5 = 30 sec. > Cheers, > Samuel. 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
