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STRUCT WIPHY(9) Device registration STRUCT WIPHY(9)

NAME

struct_wiphy - wireless hardware description

SYNOPSIS

struct wiphy {
  u8 perm_addr[ETH_ALEN];
  u8 addr_mask[ETH_ALEN];
  struct mac_address * addresses;
  const struct ieee80211_txrx_stypes * mgmt_stypes;
  const struct ieee80211_iface_combination * iface_combinations;
  int n_iface_combinations;
  u16 software_iftypes;
  u16 n_addresses;
  u16 interface_modes;
  u16 max_acl_mac_addrs;
  u32 flags;
  u32 regulatory_flags;
  u32 features;
  u32 ap_sme_capa;
  enum cfg80211_signal_type signal_type;
  int bss_priv_size;
  u8 max_scan_ssids;
  u8 max_sched_scan_ssids;
  u8 max_match_sets;
  u16 max_scan_ie_len;
  u16 max_sched_scan_ie_len;
  int n_cipher_suites;
  const u32 * cipher_suites;
  u8 retry_short;
  u8 retry_long;
  u32 frag_threshold;
  u32 rts_threshold;
  u8 coverage_class;
  char fw_version[ETHTOOL_FWVERS_LEN];
  u32 hw_version;
#ifdef CONFIG_PM
  const struct wiphy_wowlan_support * wowlan;
  struct cfg80211_wowlan * wowlan_config;
#endif
  u16 max_remain_on_channel_duration;
  u8 max_num_pmkids;
  u32 available_antennas_tx;
  u32 available_antennas_rx;
  u32 probe_resp_offload;
  const u8 * extended_capabilities;
  const u8 * extended_capabilities_mask;
  u8 extended_capabilities_len;
  const void * privid;
  struct ieee80211_supported_band * bands[IEEE80211_NUM_BANDS];
  void (* reg_notifier) (struct wiphy *wiphy,struct regulatory_request *request);
  const struct ieee80211_regdomain __rcu * regd;
  struct device dev;
  bool registered;
  struct dentry * debugfsdir;
  const struct ieee80211_ht_cap * ht_capa_mod_mask;
  const struct ieee80211_vht_cap * vht_capa_mod_mask;
#ifdef CONFIG_NET_NS
  struct net * _net;
#endif
#ifdef CONFIG_CFG80211_WEXT
  const struct iw_handler_def * wext;
#endif
  const struct wiphy_coalesce_support * coalesce;
  const struct wiphy_vendor_command * vendor_commands;
  const struct nl80211_vendor_cmd_info * vendor_events;
  int n_vendor_commands;
  int n_vendor_events;
  u16 max_ap_assoc_sta;
  u8 max_num_csa_counters;
  u8 max_adj_channel_rssi_comp;
  char priv[0];
};

MEMBERS

perm_addr[ETH_ALEN]
permanent MAC address of this device
addr_mask[ETH_ALEN]
If the device supports multiple MAC addresses by masking, set this to a mask with variable bits set to 1, e.g. if the last four bits are variable then set it to 00-00-00-00-00-0f. The actual variable bits shall be determined by the interfaces added, with interfaces not matching the mask being rejected to be brought up.
addresses
If the device has more than one address, set this pointer to a list of addresses (6 bytes each). The first one will be used by default for perm_addr. In this case, the mask should be set to all-zeroes. In this case it is assumed that the device can handle the same number of arbitrary MAC addresses.
mgmt_stypes
bitmasks of frame subtypes that can be subscribed to or transmitted through nl80211, points to an array indexed by interface type
iface_combinations
Valid interface combinations array, should not list single interface types.
n_iface_combinations
number of entries in iface_combinations array.
software_iftypes
bitmask of software interface types, these are not subject to any restrictions since they are purely managed in SW.
n_addresses
number of addresses in addresses.
interface_modes
bitmask of interfaces types valid for this wiphy, must be set by driver
max_acl_mac_addrs
Maximum number of MAC addresses that the device supports for ACL.
flags
wiphy flags, see enum wiphy_flags
regulatory_flags
wiphy regulatory flags, see enum ieee80211_regulatory_flags
features
features advertised to nl80211, see enum nl80211_feature_flags.
ap_sme_capa
AP SME capabilities, flags from enum nl80211_ap_sme_features.
signal_type
signal type reported in struct cfg80211_bss.
bss_priv_size
each BSS struct has private data allocated with it, this variable determines its size
max_scan_ssids
maximum number of SSIDs the device can scan for in any given scan
max_sched_scan_ssids
maximum number of SSIDs the device can scan for in any given scheduled scan
max_match_sets
maximum number of match sets the device can handle when performing a scheduled scan, 0 if filtering is not supported.
max_scan_ie_len
maximum length of user-controlled IEs device can add to probe request frames transmitted during a scan, must not include fixed IEs like supported rates
max_sched_scan_ie_len
same as max_scan_ie_len, but for scheduled scans
n_cipher_suites
number of supported cipher suites
cipher_suites
supported cipher suites
retry_short
Retry limit for short frames (dot11ShortRetryLimit)
retry_long
Retry limit for long frames (dot11LongRetryLimit)
frag_threshold
Fragmentation threshold (dot11FragmentationThreshold); -1 = fragmentation disabled, only odd values >= 256 used
rts_threshold
RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
coverage_class
current coverage class
fw_version[ETHTOOL_FWVERS_LEN]
firmware version for ethtool reporting
hw_version
hardware version for ethtool reporting
wowlan
WoWLAN support information
wowlan_config
current WoWLAN configuration; this should usually not be used since access to it is necessarily racy, use the parameter passed to the suspend operation instead.
max_remain_on_channel_duration
Maximum time a remain-on-channel operation may request, if implemented.
max_num_pmkids
maximum number of PMKIDs supported by device
available_antennas_tx
bitmap of antennas which are available to be configured as TX antennas. Antenna configuration commands will be rejected unless this or available_antennas_rx is set.
available_antennas_rx
bitmap of antennas which are available to be configured as RX antennas. Antenna configuration commands will be rejected unless this or available_antennas_tx is set.
probe_resp_offload
Bitmap of supported protocols for probe response offloading. See enum nl80211_probe_resp_offload_support_attr. Only valid when the wiphy flag WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
extended_capabilities
extended capabilities supported by the driver, additional capabilities might be supported by userspace; these are the 802.11 extended capabilities (“Extended Capabilities element”) and are in the same format as in the information element. See 802.11-2012 8.4.2.29 for the defined fields.
extended_capabilities_mask
mask of the valid values
extended_capabilities_len
length of the extended capabilities
privid
a pointer that drivers can use to identify if an arbitrary wiphy is theirs, e.g. in global notifiers
bands[IEEE80211_NUM_BANDS]
information about bands/channels supported by this device
reg_notifier
the driver's regulatory notification callback, note that if your driver uses wiphy_apply_custom_regulatory the reg_notifier's request can be passed as NULL
regd
the driver's regulatory domain, if one was requested via the regulatory_hint API. This can be used by the driver on the reg_notifier if it chooses to ignore future regulatory domain changes caused by other drivers.
dev
(virtual) struct device for this wiphy
registered
helps synchronize suspend/resume with wiphy unregister
debugfsdir
debugfs directory used for this wiphy, will be renamed automatically on wiphy renames
ht_capa_mod_mask
Specify what ht_cap values can be over-ridden. If null, then none can be over-ridden.
vht_capa_mod_mask
Specify what VHT capabilities can be over-ridden. If null, then none can be over-ridden.
_net
the network namespace this wiphy currently lives in
wext
wireless extension handlers
coalesce
packet coalescing support information
vendor_commands
array of vendor commands supported by the hardware
vendor_events
array of vendor events supported by the hardware
n_vendor_commands
number of vendor commands
n_vendor_events
number of vendor events
max_ap_assoc_sta
maximum number of associated stations supported in AP mode (including P2P GO) or 0 to indicate no such limit is advertised. The driver is allowed to advertise a theoretical limit that it can reach in some cases, but may not always reach.
max_num_csa_counters
Number of supported csa_counters in beacons and probe responses. This value should be set if the driver wishes to limit the number of csa counters. Default (0) means infinite.
max_adj_channel_rssi_comp
max offset of between the channel on which the frame was sent and the channel on which the frame was heard for which the reported rssi is still valid. If a driver is able to compensate the low rssi when a frame is heard on different channel, then it should set this variable to the maximal offset for which it can compensate. This value should be set in MHz.
priv[0]
driver private data (sized according to wiphy_new parameter)

AUTHOR

Johannes Berg <johannes@sipsolutions.net>
Author.

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16