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List: hostap
Subject: Converting signal and noise values to dBm
From: Varga_Dávid <varga.david () duvinet ! hu>
Date: 2007-04-26 13:19:02
Message-ID: 000801c78805$75d0f130$b700a8c0 () duvibook
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Hello!
I'd like to convert the rx_stats->signal and rx_stats->noise values in the
hostap_80211_rx.c to dBm.
At the moment I use printk(KERN_DEBUG "%d %d", rx_stats->signal,
rx_stats->noise);
and it gives me back signal rates 180.230 and noise rates 160.170.
I tried using printk(KERN_DEBUG "%d %d",
HFA384X_LEVEL_TO_dBm(rx_stats->signal),
HFA384X_LEVEL_TO_dBm(rx_stats->noise));
but it still doesn't give me the negative dBm values that iwconfig does.
Could anyone help with this?
Thanks;
David
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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial'>Hello!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial'>I’d like to convert the rx_stats->signal and
rx_stats->noise values in the hostap_80211_rx.c to \
dBm.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial'>At the moment I use <i><span \
style='font-style:italic'>printk(KERN_DEBUG “%d %d”, rx_stats->signal, \
rx_stats->noise);</span></i> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial'>and it gives me back signal rates 18</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>0…230
and noise rates 160…170.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I tried using </span></font><i><font size=2 face=Arial><span
lang=EN-US style='font-size:10.0pt;font-family:Arial;font-style:italic'>printk(KERN_DEBUG
“%d %d”, </span></font></i><i><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-style:italic'>HFA384X_LEVEL_TO_dBm(</span></font></i><i><font
size=2 face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
font-style:italic'>rx_stats->signal), </span></font></i><i><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial;font-style:italic'>HFA384X_LEVEL_TO_dBm(</span></font></i><i><font
size=2 face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
font-style:italic'>rx_stats->noise));</span></font></i><font size=2
face=Arial><span lang=EN-US \
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial'>but it still doesn’t give me the negative dBm
values that iwconfig does.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial'>Could anyone help with this?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial'>Thanks;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-US style='font-size:
10.0pt;font-family:Arial'>David</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
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