STRUCT SURVEY_INFO(9) Actions and configuration STRUCT SURVEY_INFO(9)NAME
struct_survey_info - channel survey response
SYNOPSIS
struct survey_info {
struct ieee80211_channel * channel;
u64 channel_time;
u64 channel_time_busy;
u64 channel_time_ext_busy;
u64 channel_time_rx;
u64 channel_time_tx;
u32 filled;
s8 noise;
};
MEMBERS
channel
the channel this survey record reports, mandatory
channel_time
amount of time in ms the radio spent on the channel
channel_time_busy
amount of time the primary channel was sensed busy
channel_time_ext_busy
amount of time the extension channel was sensed busy
channel_time_rx
amount of time the radio spent receiving data
channel_time_tx
amount of time the radio spent transmitting data
filled
bitflag of flags from enum survey_info_flags
noise
channel noise in dBm. This and all following fields are optional
DESCRIPTION
Used by dump_survey to report back per-channel survey information.
This structure can later be expanded with things like channel duty cycle etc.
AUTHOR
Johannes Berg <johannes@sipsolutions.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 STRUCT SURVEY_INFO(9)
Check Out this Related Man Page
STRUCT IEEE80211_RX_(9) The basic mac80211 driver inte STRUCT IEEE80211_RX_(9)NAME
struct_ieee80211_rx_status - receive status
SYNOPSIS
struct ieee80211_rx_status {
u64 mactime;
enum ieee80211_band band;
int freq;
int signal;
int noise;
int antenna;
int rate_idx;
int flag;
};
MEMBERS
mactime
value in microseconds of the 64-bit Time Synchronization Function (TSF) timer when the first data symbol (MPDU) arrived at the
hardware.
band
the active band when this frame was received
freq
frequency the radio was tuned to when receiving this frame, in MHz
signal
signal strength when receiving this frame, either in dBm, in dB or unspecified depending on the hardware capabilities flags
IEEE80211_HW_SIGNAL_*
noise
noise when receiving this frame, in dBm.
antenna
antenna used
rate_idx
index of data rate into band's supported rates or MCS index if HT rates are use (RX_FLAG_HT)
flag
RX_FLAG_*
DESCRIPTION
The low-level driver should provide this information (the subset supported by hardware) to the 802.11 code with each received frame, in the
skb's control buffer (cb).
AUTHOR
Johannes Berg <johannes@sipsolutions.net>
Author.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 STRUCT IEEE80211_RX_(9)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
hi all,
i have installed quota on my centos 7 machine and its what im after (setting size limit on users, so they cant fill the hard drive)
i want to now make this part of my create user script for my sftp server so i want to do a echo and a read command so i capture the limit they enter... (0 Replies)
Hi everybody,
Which Unix base OS have best performance for HOST virtualization?
I tested SmartOS but it needs another OS to connect remotely!
Thanks in advance. (11 Replies)
Hi All,
I need to write a shell script which opens a file and increments the version(text) within the file every time the script runs. For example:
$ cat docker_file.yml
version: '3.1'
services:
ui:
image: repo-srv.dev.io:5000/facebook/ui:0.0.2-QA1
$
So, I would like... (6 Replies)
Dear Team
We use DB2 v10.5 and using DBArtisan tool
Can someone please guide how to convert digits to binary numbers using db2 feature.
Ex> for number 9 , binary should be 1001 ( 8+1)
Any help appreciated. Thanks (2 Replies)
hi folks,
how to using tar with exclude directory and compress it using tar.Z
i only know how to exclude dir only with this command below:
tar -cvf /varios/restore/test.tar -X excludefile.txt /jfma/test1/
how to compress it using 1 command?
Thanx
Please use CODE tags as... (6 Replies)
Quite an obscure question I think.
We have a rebuild process for remote sites that allows us to PXE rebuild a till (actually a PC with a touch screen and various fancy bits) running CentOS. The current CentOS5 tills work just fine with a tar image restore and some personalisation. Sadly,... (4 Replies)
Hello All,
I had recently learnt a bit of Docker(which provides containerization process).
Here are some of my learning points from it.
Let us start first with very basic question:
What is Docker:
Docker is a platform for sysadmins and developers to DEPLOY, DEVELOP and RUN applications ... (7 Replies)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)
Hello... And thanks in advance for any help anyone can offer me
I was trying to work out the differences between displaying modify, access, and change times with the 'ls' command. Everything seems in order when I look at files, but the access time on a directory doesn't seem to change when I... (4 Replies)
Hello everyone,
I am having an issue here with CentOS release 6.6 (Final) that shows all of the space used up, but I can't tell where the space went.
Seemingly I am using up 100%, according to
df -h
Filesystem Size Used Avail Use% Mounted on... (27 Replies)
I'm trying to use a bash script for a psych experiment that involves listening to sound files and responding. If I have something like the code below, how can I make sure that a key press is assigned to RESPONSE only after the second echo statement?
for i in 1 2 3; do
echo "Ready?"
sleep 2
... (10 Replies)
After the success of the jq - tool for parsing and manipulating JSON-Data someone wrote a tool called yq, which aims to be the same for YAML, what jq is for JSON. Seems to work fine. I'll definitely give it a chance in future.
Example YAML-File:
--- !ruby/object:Puppet::Node::Facts
... (1 Reply)
Dear All,
I am very pleased to announce that Dave Munro (gull04) is joining the Moderation Team, after being a very valuable member of UNIX.com for 15+ years.
Dave is an IT Consultant with 30 years of experience this year, has worked in many of the industry vertical market segments and has... (6 Replies)