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_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_NOISE_DBM, 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_BEACON_FILTER, IEEE80211_HW_REPORTS_TX_ACK_STATUS };

CONSTANTS 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_NOISE_DBM Hardware can provide noise (radio interference) values in units dBm, decibel difference from one milliwatt.

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_BEACON_FILTER Hardware supports dropping of irrelevant beacon frames to avoid waking up cpu.

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

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. September 2010 ENUM IEEE80211_HW_FL(9)