---
name: "struct_ieee80211_conf"
section: "9"
platform: "linux"
package: "linux-manual-3.16"
version: "3.16.56-1+deb8u1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/struct_ieee80211_conf"
---

# struct\_ieee80211\_conf(9)

configuration of the device

## NAME

struct\_ieee80211\_conf - configuration of the device

## SYNOPSIS

```
struct ieee80211_conf {
  u32 flags;
  int power_level;
  int dynamic_ps_timeout;
  int max_sleep_period;
  u16 listen_interval;
  u8 ps_dtim_period;
  u8 long_frame_max_tx_count;
  u8 short_frame_max_tx_count;
  struct cfg80211_chan_def chandef;
  bool radar_enabled;
  enum ieee80211_smps_mode smps_mode;
};
```

## MEMBERS

flags

configuration flags defined above

power\_level

requested transmit power (in dBm), backward compatibility value only that is set to the minimum of all interfaces

dynamic\_ps\_timeout

The dynamic powersave timeout (in ms), see the powersave documentation below. This variable is valid only when the CONF\_PS flag is set.

max\_sleep\_period

the maximum number of beacon intervals to sleep for before checking the beacon for a TIM bit (managed mode only); this value will be only achievable between DTIM frames, the hardware needs to check for the multicast traffic bit in DTIM beacons. This variable is valid only when the CONF\_PS flag is set.

listen\_interval

listen interval in units of beacon interval

ps\_dtim\_period

The DTIM period of the AP we're connected to, for use in power saving. Power saving will not be enabled until a beacon has been received and the DTIM period is known.

long\_frame\_max\_tx\_count

Maximum number of transmissions for a “long” frame (a frame not RTS protected), called “dot11LongRetryLimit” in 802.11, but actually means the number of transmissions not the number of retries

short\_frame\_max\_tx\_count

Maximum number of transmissions for a “short” frame, called “dot11ShortRetryLimit” in 802.11, but actually means the number of transmissions not the number of retries

chandef

the channel definition to tune to

radar\_enabled

whether radar detection is enabled

smps\_mode

spatial multiplexing powersave mode; note that **IEEE80211\_SMPS\_STATIC** is used when the device is not configured for an HT channel. Note that this is only valid if channel contexts are not used, otherwise each channel context has the number of chains listed.

## DESCRIPTION

This struct indicates how the driver shall configure the hardware.

## AUTHOR

**Johannes Berg** \<johannes@sipsolutions.net\>

Author.

## COPYRIGHT