enum_ieee80211_hw_flags man page on Scientific

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ENUM IEEE80211_HW_FL(9) The basic mac80211 driver inte ENUM IEEE80211_HW_FL(9)

NAME
       enum_ieee80211_hw_flags - hardware flags

SYNOPSIS
       enum ieee80211_hw_flags {
	 IEEE80211_HW_HAS_RATE_CONTROL,
	 IEEE80211_HW_RX_INCLUDES_FCS,
	 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING,
	 IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE,
	 IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE,
	 IEEE80211_HW_SIGNAL_UNSPEC,
	 IEEE80211_HW_SIGNAL_DBM,
	 IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC,
	 IEEE80211_HW_SPECTRUM_MGMT,
	 IEEE80211_HW_AMPDU_AGGREGATION,
	 IEEE80211_HW_SUPPORTS_PS,
	 IEEE80211_HW_PS_NULLFUNC_STACK,
	 IEEE80211_HW_SUPPORTS_DYNAMIC_PS,
	 IEEE80211_HW_MFP_CAPABLE,
	 IEEE80211_HW_WANT_MONITOR_VIF,
	 IEEE80211_HW_SUPPORTS_STATIC_SMPS,
	 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS,
	 IEEE80211_HW_SUPPORTS_UAPSD,
	 IEEE80211_HW_REPORTS_TX_ACK_STATUS,
	 IEEE80211_HW_CONNECTION_MONITOR,
	 IEEE80211_HW_QUEUE_CONTROL,
	 IEEE80211_HW_SUPPORTS_PER_STA_GTK,
	 IEEE80211_HW_AP_LINK_PS,
	 IEEE80211_HW_TX_AMPDU_SETUP_IN_HW,
	 IEEE80211_HW_SUPPORTS_RC_TABLE,
	 IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF,
	 IEEE80211_HW_TIMING_BEACON_ONLY,
	 IEEE80211_HW_SUPPORTS_HT_CCK_RATES
       };

CONSTANTS
       IEEE80211_HW_HAS_RATE_CONTROL
	   The hardware or firmware includes rate control, and cannot be
	   controlled by the stack. As such, no rate control algorithm should
	   be instantiated, and the TX rate reported to userspace will be
	   taken from the TX status instead of the rate control algorithm.
	   Note that this requires that the driver implement a number of
	   callbacks so it has the correct information, it needs to have the
	   set_rts_threshold callback and must look at the BSS config
	   use_cts_prot for G/N protection, use_short_slot for slot timing in
	   2.4 GHz and use_short_preamble for preambles for CCK frames.

       IEEE80211_HW_RX_INCLUDES_FCS
	   Indicates that received frames passed to the stack include the FCS
	   at the end.

       IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING
	   Some wireless LAN chipsets buffer broadcast/multicast frames for
	   power saving stations in the hardware/firmware and others rely on
	   the host system for such buffering. This option is used to
	   configure the IEEE 802.11 upper layer to buffer broadcast and
	   multicast frames when there are power saving stations so that the
	   driver can fetch them with ieee80211_get_buffered_bc.

       IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE
	   Hardware is not capable of short slot operation on the 2.4 GHz
	   band.

       IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE
	   Hardware is not capable of receiving frames with short preamble on
	   the 2.4 GHz band.

       IEEE80211_HW_SIGNAL_UNSPEC
	   Hardware can provide signal values but we don´t know its units. We
	   expect values between 0 and max_signal. If possible please provide
	   dB or dBm instead.

       IEEE80211_HW_SIGNAL_DBM
	   Hardware gives signal values in dBm, decibel difference from one
	   milliwatt. This is the preferred method since it is standardized
	   between different devices.  max_signal does not need to be set.

       IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC
	   This device needs to get data from beacon before association (i.e.
	   dtim_period).

       IEEE80211_HW_SPECTRUM_MGMT
	   Hardware supports spectrum management defined in 802.11h
	   Measurement, Channel Switch, Quieting, TPC

       IEEE80211_HW_AMPDU_AGGREGATION
	   Hardware supports 11n A-MPDU aggregation.

       IEEE80211_HW_SUPPORTS_PS
	   Hardware has power save support (i.e. can go to sleep).

       IEEE80211_HW_PS_NULLFUNC_STACK
	   Hardware requires nullfunc frame handling in stack, implies stack
	   support for dynamic PS.

       IEEE80211_HW_SUPPORTS_DYNAMIC_PS
	   Hardware has support for dynamic PS.

       IEEE80211_HW_MFP_CAPABLE
	   Hardware supports management frame protection (MFP, IEEE 802.11w).

       IEEE80211_HW_WANT_MONITOR_VIF
	   The driver would like to be informed of a virtual monitor interface
	   when monitor interfaces are the only active interfaces.

       IEEE80211_HW_SUPPORTS_STATIC_SMPS
	   Hardware supports static spatial multiplexing powersave, ie. can
	   turn off all but one chain even on HT connections that should be
	   using more chains.

       IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
	   Hardware supports dynamic spatial multiplexing powersave, ie. can
	   turn off all but one chain and then wake the rest up as required
	   after, for example, rts/cts handshake.

       IEEE80211_HW_SUPPORTS_UAPSD
	   Hardware supports Unscheduled Automatic Power Save Delivery
	   (U-APSD) in managed mode. The mode is configured with conf_tx
	   operation.

       IEEE80211_HW_REPORTS_TX_ACK_STATUS
	   Hardware can provide ack status reports of Tx frames to the stack.

       IEEE80211_HW_CONNECTION_MONITOR
	   The hardware performs its own connection monitoring, including
	   periodic keep-alives to the AP and probing the AP on beacon loss.
	   When this flag is set, signaling beacon-loss will cause an
	   immediate change to disassociated state.

       IEEE80211_HW_QUEUE_CONTROL
	   The driver wants to control per-interface queue mapping in order to
	   use different queues (not just one per AC) for different virtual
	   interfaces. See the doc section on HW queue control for more
	   details.

       IEEE80211_HW_SUPPORTS_PER_STA_GTK
	   The device´s crypto engine supports per-station GTKs as used by
	   IBSS RSN or during fast transition. If the device doesn´t support
	   per-station GTKs, but can be asked not to decrypt group addressed
	   frames, then IBSS RSN support is still possible but software crypto
	   will be used. Advertise the wiphy flag only in that case.

       IEEE80211_HW_AP_LINK_PS
	   When operating in AP mode the device autonomously manages the PS
	   status of connected stations. When this flag is set mac80211 will
	   not trigger PS mode for connected stations based on the PM bit of
	   incoming frames. Use ieee80211_start_ps/ieee8021_end_ps to manually
	   configure the PS mode of connected stations.

       IEEE80211_HW_TX_AMPDU_SETUP_IN_HW
	   The device handles TX A-MPDU session setup strictly in HW. mac80211
	   should not attempt to do this in software.

       IEEE80211_HW_SUPPORTS_RC_TABLE
	   The driver supports using a rate selection table provided by the
	   rate control algorithm.

       IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF
	   Use the P2P Device address for any P2P Interface. This will be
	   honoured even if more than one interface is supported.

       IEEE80211_HW_TIMING_BEACON_ONLY
	   Use sync timing from beacon frames only, to allow getting TBTT of a
	   DTIM beacon.

       IEEE80211_HW_SUPPORTS_HT_CCK_RATES
	   -- undescribed --

DESCRIPTION
       These flags are used to indicate hardware capabilities to the stack.
       Generally, flags here should have their meaning done in a way that the
       simplest hardware doesn´t need setting any particular flags. There are
       some exceptions to this rule, however, so you are advised to review
       these flags carefully.

AUTHOR
       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013	       ENUM IEEE80211_HW_FL(9)
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