Comments (7)
The best places to look for are
/proc/net/dev
(this is what wavemon uses to check for wireless interfaces)/proc/net/wireless
(if not there or empty, it is an indication that the driver does not support Wext wireless extensions)
Alternatively, you can try running the following:
iwconfig
- shows all (Wext-supported) wireless interfacesiw dev
- modern variant, also displaying all wireless interfaces
from wavemon.
I 'm facing the same issue with latest master branch, commit affa6d8:
# wavemon -v
wavemon 0.8.0 with ncurses 5.9.20110404 and libnl 3.2.27.
Distributed under the terms of the GPLv3.
# wavemon -i wlan0
wavemon: no supported wireless interfaces found!. Check manpage for help.
# wavemon
wavemon: no supported wireless interfaces found!. Check manpage for help.
# cat /proc/net/dev
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
lo: 265711 2899 0 0 0 0 0 0 265711 2899 0 0 0 0 0 0
eth0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
wlan0: 41185 259 0 0 0 0 0 78 46411 210 0 0 0 0 0 0
from wavemon.
The interface name wlan0
appears in /proc/net/dev
; the error that is produced by wavemon
is caused by the SIOGIWNAME
(an ioctl
specific to wireless extensions) to fail on every interface in /proc/net/dev
, including wlan0
.
I am reopening this issue; my guess is that your wlan0
interface does not (or not fully) support wireless extensions (can be verified by running iwlist
or cat /proc/net/wireless
).
I will therefore work on a different solution and get back shortly.
from wavemon.
You're right! I have not enabled wireless extensions for this test, but had the last time.
from wavemon.
@joerg-krause - there is still some dependency of wavemon
on wireless extensions; those calls would fail if this test ignores wirless extensions.
The reason I stuck with this choice so long is that wireless extensions and libnl80211 do not offer the same set of features. Some features that wext provides are not in libnl80211.
from wavemon.
I see! However, I will re-run the test of the master branch with wext enabled later this week.
from wavemon.
I have looked into this and decided to keep the check. The reason is that there is too much code which still depends on the wireless extensions. These calls would fail if the check were not done here. Deactivating calls that depend on wireless extensions would mean that only a part functions.
from wavemon.
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