On Fri, 2012-03-23 at 14:11 -0300, Lauro Ramos Venancio wrote: > 2012/3/23 Eric Lapuyade <eric.lapuyade@xxxxxxxxxxxxxxx>: > > Some HW/drivers get notifications when a tag moves out of the radio field. > > This notification is now forwarded to user space through netlink. > > I think to put a timer in the NFC core is not the best solution for > this problem. > This solution is not suitable for devices that receive an event when > the tag moves out of the field. One more thing: If the device provides such capability, the driver can then call nfc_target_lost() directly, and not register a presence_check() ops. Without such an ops, the timer won't get started, obviously. presence_check() is for drivers that are limited to asking the firmware about the target being on the field or not. Cheers, Samuel. -- 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
