enum_ieee80211_hw_flags

Langue: en

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

NAME

enum_ieee80211_hw_flags - hardware flags

SYNOPSIS

 enum ieee80211_hw_flags {
   IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE,
   IEEE80211_HW_RX_INCLUDES_FCS,
   IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING,
   IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE,
   IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE
 };  
 

CONSTANTS

IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE

The device only needs to be supplied with a beacon template. If you need the host to generate each beacon then don't use this flag and call ieee80211_beacon_get when you need the next beacon frame. Note that if you set this flag, you must implement the set_tim callback for powersave mode to work properly. This flag is only relevant for access-point mode.

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. Note that not setting this flag works properly only when the IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is also not set because otherwise the stack will not know when the DTIM beacon was sent.

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.

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.