ieee80211_rx(9) [centos man page]

IEEE80211_RX(9) 					  The basic mac80211 driver inte					   IEEE80211_RX(9)

NAME

       ieee80211_rx - receive frame

SYNOPSIS

       void ieee80211_rx(struct ieee80211_hw * hw, struct sk_buff * skb);

ARGUMENTS

       hw
	   the hardware this frame came in on

       skb
	   the buffer to receive, owned by mac80211 after this call

DESCRIPTION

       Use this function to hand received frames to mac80211. The receive buffer in skb must start with an IEEE 802.11 header. In case of a paged
       skb is used, the driver is recommended to put the ieee80211 header of the frame on the linear part of the skb to avoid memory allocation
       and/or memcpy by the stack.

       This function may not be called in IRQ context. Calls to this function for a single hardware must be synchronized against each other. Calls
       to this function, ieee80211_rx_ni and ieee80211_rx_irqsafe may not be mixed for a single hardware. Must not run concurrently with
       ieee80211_tx_status or ieee80211_tx_status_ni.

       In process context use instead ieee80211_rx_ni.

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							   IEEE80211_RX(9)

IEEE80211_GET_BUFFER(9) 				     Advanced driver interface					   IEEE80211_GET_BUFFER(9)

NAME

       ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames

SYNOPSIS

       struct sk_buff * ieee80211_get_buffered_bc(struct ieee80211_hw * hw, struct ieee80211_vif * vif);

ARGUMENTS

       hw
	   pointer as obtained from ieee80211_alloc_hw.

       vif

	   struct ieee80211_vif pointer from the add_interface callback.

DESCRIPTION

       Function for accessing buffered broadcast and multicast frames. If hardware/firmware does not implement buffering of broadcast/multicast
       frames when power saving is used, 802.11 code buffers them in the host memory. The low-level driver uses this function to fetch next
       buffered frame. In most cases, this is used when generating beacon frame. This function returns a pointer to the next buffered skb or NULL
       if no more buffered frames are available.

NOTE

       buffered frames are returned only after DTIM beacon frame was generated with ieee80211_beacon_get and the low-level driver must thus call
       ieee80211_beacon_get first.  ieee80211_get_buffered_bc returns NULL if the previous generated beacon was not DTIM, so the low-level driver
       does not need to check for DTIM beacons separately and should be able to use common code for all beacons.

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						   IEEE80211_GET_BUFFER(9)