On 12/18/2013 11:29 AM, Ujjal Roy wrote: > Hi Johannes, > > I want to add P2P_DEVICE support in a driver. And it's not described > in the P2P spec. So, please tell me the following points - > 1> what do the driver do? > 2> register_netdevice() should not be called from driver for the > P2P_DEVICE interface. Then what are the procedures (network stacks) to > add a P2P device from driver's point of view? > 3> How the supplicant will communicate with this type of interface? > Hi Ujjal, P2P_DEVICE interface is meant for the P2P discovery phase, which is in the P2P spec. It is also depending on the driver/firmware whether it needs this to distinguish between a regular scan and P2P scan. Some vendors who did have that need created a 'dummy' netdev for that purpose although it is only used for scanning/listening, ie. no network traffic. To avoid that waste the P2P_DEVICE interface was cooked up. The P2P_DEVICE interface is created through nl80211 by recent wpa_supplicant when driver indicates support. Regards, Arend -- 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
