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;
};
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.
DESCRIPTION
This structure describes a single channel for use with cfg80211.
AUTHOR
Johannes Berg <johannes@sipsolutions.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 STRUCT IEEE80211_CHA(9)
Check Out this Related Man Page
ENUM IEEE80211_CHANN(9) Device registration ENUM IEEE80211_CHANN(9)NAME
enum_ieee80211_channel_flags - channel flags
SYNOPSIS
enum ieee80211_channel_flags {
IEEE80211_CHAN_DISABLED,
IEEE80211_CHAN_PASSIVE_SCAN,
IEEE80211_CHAN_NO_IBSS,
IEEE80211_CHAN_RADAR,
IEEE80211_CHAN_NO_HT40PLUS,
IEEE80211_CHAN_NO_HT40MINUS,
IEEE80211_CHAN_NO_OFDM,
IEEE80211_CHAN_NO_80MHZ,
IEEE80211_CHAN_NO_160MHZ
};
CONSTANTS
IEEE80211_CHAN_DISABLED
This channel is disabled.
IEEE80211_CHAN_PASSIVE_SCAN
Only passive scanning is permitted on this channel.
IEEE80211_CHAN_NO_IBSS
IBSS is not allowed on this channel.
IEEE80211_CHAN_RADAR
Radar detection is required on this channel.
IEEE80211_CHAN_NO_HT40PLUS
extension channel above this channel is not permitted.
IEEE80211_CHAN_NO_HT40MINUS
extension channel below this channel is not permitted.
IEEE80211_CHAN_NO_OFDM
OFDM is not allowed on this channel.
IEEE80211_CHAN_NO_80MHZ
If the driver supports 80 MHz on the band, this flag indicates that an 80 MHz channel cannot use this channel as the control or any of
the secondary channels. This may be due to the driver or due to regulatory bandwidth restrictions.
IEEE80211_CHAN_NO_160MHZ
If the driver supports 160 MHz on the band, this flag indicates that an 160 MHz channel cannot use this channel as the control or any
of the secondary channels. This may be due to the driver or due to regulatory bandwidth restrictions.
DESCRIPTION
Channel flags set by the regulatory control code.
AUTHOR
Johannes Berg <johannes@sipsolutions.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 ENUM IEEE80211_CHANN(9)