STRUCT IEEE80211_HW

NAME

SYNOPSIS

struct ieee80211_hw {
  struct ieee80211_conf conf;
  struct wiphy * wiphy;
  const char * rate_control_algorithm;
  void * priv;
  u32 flags;
  unsigned int extra_tx_headroom;
  int channel_change_time;
  int vif_data_size;
  int sta_data_size;
  int napi_weight;
  u16 queues;
  u16 max_listen_interval;
  s8 max_signal;
  u8 max_rates;
  u8 max_report_rates;
  u8 max_rate_tries;
};  

MEMBERS

conf

struct ieee80211_conf, device configuration, don't use.

wiphy

This points to the struct wiphy allocated for this 802.11 PHY. You must fill in the perm_addr and dev members of this structure using SET_IEEE80211_DEV and SET_IEEE80211_PERM_ADDR. Additionally, all supported bands (with channels, bitrates) are registered here.

rate_control_algorithm

rate control algorithm for this hardware. If unset (NULL), the default algorithm will be used. Must be set before calling ieee80211_register_hw.

priv

pointer to private area that was allocated for driver use along with this structure.

flags

hardware flags, see enum ieee80211_hw_flags.

extra_tx_headroom

headroom to reserve in each transmit skb for use by the driver (e.g. for transmit headers.)

channel_change_time

time (in microseconds) it takes to change channels.

vif_data_size

size (in bytes) of the drv_priv data area within struct ieee80211_vif.

sta_data_size

size (in bytes) of the drv_priv data area within struct ieee80211_sta.

napi_weight

weight used for NAPI polling. You must specify an appropriate value here if a napi_poll operation is provided by your driver.

queues

number of available hardware transmit queues for data packets. WMM/QoS requires at least four, these queues need to have configurable access parameters.

max_listen_interval

max listen interval in units of beacon interval that HW supports

max_signal

Maximum value for signal (rssi) in RX information, used only when IEEE80211_HW_SIGNAL_UNSPEC or IEEE80211_HW_SIGNAL_DB

max_rates

maximum number of alternate rate retry stages the hw can handle.

max_report_rates

maximum number of alternate rate retry stages the hw can report back.

max_rate_tries

maximum number of tries for each stage

DESCRIPTION

This structure contains the configuration and hardware information for an 802.11 PHY.  

AUTHOR

Johannes Berg <johannes@sipsolutions.net>

Author.

COPYRIGHT