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struct_ieee80211_tx_rate(9) [centos man page]

IEEE80211_TX_(9) The basic mac80211 driver inte STRUCT IEEE80211_TX_(9) NAME
struct_ieee80211_tx_rate - rate selection/status SYNOPSIS
struct ieee80211_tx_rate { s8 idx; u16 count:5; u16 flags:11; }; MEMBERS
idx rate index to attempt to send with count number of tries in this rate before going to the next rate flags rate control flags (enum mac80211_rate_control_flags) DESCRIPTION
A value of -1 for idx indicates an invalid rate and, if used in an array of retry rates, that no more rates should be tried. When used for transmit status reporting, the driver should always report the rate along with the flags it used. struct ieee80211_tx_info contains an array of these structs in the control information, and it will be filled by the rate control algorithm according to what should be sent. For example, if this array contains, in the format { <idx>, <count> } the information { 3, 2 }, { 2, 2 }, { 1, 4 }, { -1, 0 }, { -1, 0 } then this means that the frame should be transmitted up to twice at rate 3, up to twice at rate 2, and up to four times at rate 1 if it doesn't get acknowledged. Say it gets acknowledged by the peer after the fifth attempt, the status information should then contain { 3, 2 }, { 2, 2 }, { 1, 1 }, { -1, 0 } ... since it was transmitted twice at rate 3, twice at rate 2 and once at rate 1 after which we received an acknowledgement. AUTHOR
Johannes Berg <johannes@sipsolutions.net> Author. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 STRUCT IEEE80211_TX_(9)

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IEEE80211_RATE_(9) Device registration ENUM IEEE80211_RATE_(9) NAME
enum_ieee80211_rate_flags - rate flags SYNOPSIS
IEEE80211_RATE_SHORT_PREAMBLE Hardware can send with short preamble on this bitrate; only relevant in 2.4GHz band and with CCK rates. IEEE80211_RATE_MANDATORY_A This bitrate is a mandatory rate when used with 802.11a (on the 5 GHz band); filled by the core code when registering the wiphy. IEEE80211_RATE_MANDATORY_B This bitrate is a mandatory rate when used with 802.11b (on the 2.4 GHz band); filled by the core code when registering the wiphy. IEEE80211_RATE_MANDATORY_G This bitrate is a mandatory rate when used with 802.11g (on the 2.4 GHz band); filled by the core code when registering the wiphy. IEEE80211_RATE_ERP_G This is an ERP rate in 802.11g mode. DESCRIPTION
Hardware/specification flags for rates. These are structured in a way that allows using the same bitrate structure for different bands/PHY modes. AUTHOR
Johannes Berg <johannes@sipsolutions.net> Author. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 ENUM IEEE80211_RATE_(9)
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