rate_control_send_low(9) [centos man page]

RATE_CONTROL_SEND_LO(9) 				      Rate control interface					   RATE_CONTROL_SEND_LO(9)

NAME

       rate_control_send_low - helper for drivers for management/no-ack frames

SYNOPSIS

       bool rate_control_send_low(struct ieee80211_sta * sta, void * priv_sta, struct ieee80211_tx_rate_control * txrc);

ARGUMENTS

       sta
	   struct ieee80211_sta pointer to the target destination. Note that this may be null.

       priv_sta
	   private rate control structure. This may be null.

       txrc
	   rate control information we sholud populate for mac80211.

DESCRIPTION

       Rate control algorithms that agree to use the lowest rate to send management frames and NO_ACK data with the respective hw retries should
       use this in the beginning of their mac80211 get_rate callback. If true is returned the rate control can simply return. If false is returned
       we guarantee that sta and sta and priv_sta is not null.

       Rate control algorithms wishing to do more intelligent selection of rate for multicast/broadcast frames may choose to not use this.

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   RATE_CONTROL_SEND_LO(9)

ENUM 
MAC80211_RATE_C(9) 				  The basic mac80211 driver inte				   ENUM MAC80211_RATE_C(9)

NAME

       enum_mac80211_rate_control_flags - per-rate flags set by the Rate Control algorithm.

SYNOPSIS

       enum mac80211_rate_control_flags {
	 IEEE80211_TX_RC_USE_RTS_CTS,
	 IEEE80211_TX_RC_USE_CTS_PROTECT,
	 IEEE80211_TX_RC_USE_SHORT_PREAMBLE,
	 IEEE80211_TX_RC_MCS,
	 IEEE80211_TX_RC_GREEN_FIELD,
	 IEEE80211_TX_RC_40_MHZ_WIDTH,
	 IEEE80211_TX_RC_DUP_DATA,
	 IEEE80211_TX_RC_SHORT_GI,
	 IEEE80211_TX_RC_VHT_MCS,
	 IEEE80211_TX_RC_80_MHZ_WIDTH,
	 IEEE80211_TX_RC_160_MHZ_WIDTH
       };

CONSTANTS

       IEEE80211_TX_RC_USE_RTS_CTS
	   Use RTS/CTS exchange for this rate.

       IEEE80211_TX_RC_USE_CTS_PROTECT
	   CTS-to-self protection is required. This is set if the current BSS requires ERP protection.

       IEEE80211_TX_RC_USE_SHORT_PREAMBLE
	   Use short preamble.

       IEEE80211_TX_RC_MCS
	   HT rate.

       IEEE80211_TX_RC_GREEN_FIELD
	   Indicates whether this rate should be used in Greenfield mode.

       IEEE80211_TX_RC_40_MHZ_WIDTH
	   Indicates if the Channel Width should be 40 MHz.

       IEEE80211_TX_RC_DUP_DATA
	   The frame should be transmitted on both of the adjacent 20 MHz channels, if the current channel type is NL80211_CHAN_HT40MINUS or
	   NL80211_CHAN_HT40PLUS.

       IEEE80211_TX_RC_SHORT_GI
	   Short Guard interval should be used for this rate.

       IEEE80211_TX_RC_VHT_MCS
	   VHT MCS rate, in this case the idx field is split into a higher 4 bits (Nss) and lower 4 bits (MCS number)

       IEEE80211_TX_RC_80_MHZ_WIDTH
	   Indicates 80 MHz transmission

       IEEE80211_TX_RC_160_MHZ_WIDTH
	   Indicates 160 MHz transmission (80+80 isn't supported yet)

DESCRIPTION

       These flags are set by the Rate control algorithm for each rate during tx, in the flags member of struct ieee80211_tx_rate.

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   ENUM MAC80211_RATE_C(9)