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STRUCT IEEE80211_CHA(9) Device registration STRUCT IEEE80211_CHA(9)

NAME

struct_ieee80211_channel - channel definition

SYNOPSIS

struct ieee80211_channel {
  enum ieee80211_band band;
  u16 center_freq;
  u16 hw_value;
  u32 flags;
  int max_antenna_gain;
  int max_power;
  int max_reg_power;
  bool beacon_found;
  u32 orig_flags;
  int orig_mag;
  int orig_mpwr;
  enum nl80211_dfs_state dfs_state;
  unsigned long dfs_state_entered;
  unsigned int dfs_cac_ms;
};

MEMBERS

band
band this channel belongs to.
center_freq
center frequency in MHz
hw_value
hardware-specific value for the channel
flags
channel flags from enum ieee80211_channel_flags.
max_antenna_gain
maximum antenna gain in dBi
max_power
maximum transmission power (in dBm)
max_reg_power
maximum regulatory transmission power (in dBm)
beacon_found
helper to regulatory code to indicate when a beacon has been found on this channel. Use regulatory_hint_found_beacon to enable this, this is useful only on 5 GHz band.
orig_flags
channel flags at registration time, used by regulatory code to support devices with additional restrictions
orig_mag
internal use
orig_mpwr
internal use
dfs_state
current state of this channel. Only relevant if radar is required on this channel.
dfs_state_entered
timestamp (jiffies) when the dfs state was entered.
dfs_cac_ms
DFS CAC time in milliseconds, this is valid for DFS channels.

DESCRIPTION

This structure describes a single channel for use with cfg80211.

AUTHOR

Johannes Berg <johannes@sipsolutions.net>
Author.

COPYRIGHT

February 2017 Kernel Hackers Manual 3.16