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wifi docs: fix a few typos and inconsistencies, add examples

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8340 3c298f89-4303-0410-b956-a3cf2f4a3e73
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nbd 2007-08-04 11:51:19 +00:00
parent 919ea92c47
commit 5200fcaf3f
1 changed files with 68 additions and 14 deletions
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82
docs/wireless.tex
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@ -235,30 +235,84 @@ include several functions providing :
Each driver script should append the driver to a global DRIVERS variable :
\begin{verbatim}
\begin{Verbatim}
append DRIVERS "driver name"
\end{verbatim}
\end{Verbatim}
\subparagraph{scan\_driver}
\subparagraph{\texttt{scan\_<driver>}}
This function will parse the \texttt{/etc/config/wireless} and make sure there
are no configuration incompatibilities, like enabling hidden SSIDS with ad-hoc mode
for instance. This can be more complex if your driver supports a lof of configuration
options. It does not enable your wireless driver to work.
options. It does not change the state of the interface.
\subparagraph{enable\_driver}
Example:
\begin{Verbatim}
scan_dummy() {
local device="$1"
This function will enable the driver and read the configuration file to create application
specific configuration files for the NAS or supplicant program. It will not check the
configuration consistency.
config_get vifs "$device" vifs
for vif in $vifs; do
# check config consistency for wifi-iface sections
done
# check mode combination
}
\end{Verbatim}
\subparagraph{disable\_driver}
\subparagraph{\texttt{enable\_<driver>}}
This function should properly shutdown the wireless interfaces and kill associated programs
running on top of it.
This function will bring up the wifi device and optionally create application specific
configuration files, e.g. for the WPA authenticator or supplicant.
\subparagraph{detec\_driver}
Example:
\begin{Verbatim}
enable_dummy() {
local device="$1"
This function should reliably report the existence of the driver and of one or more of its
wireless interfaces. A basic configuration file has to be generated in the meantime.
config_get vifs "$device" vifs
for vif in $vifs; do
# bring up virtual interface belonging to
# the wifi-device "$device"
done
}
\end{Verbatim}
\subparagraph{\texttt{disable\_<driver>}}
This function will bring down the wifi device and all its virtual interfaces (if supported).
Example:
\begin{Verbatim}
disable_dummy() {
local device="$1"
# bring down virtual interfaces belonging to
# "$device" regardless of whether they are
# configured or not. Don't rely on the vifs
# variable at this point
}
\end{Verbatim}
\subparagraph{\texttt{detect\_<driver>}}
This function looks for interfaces that are usable with the driver. Template config sections
for new devices should be written to stdout. Must check for already existing config sections
belonging to the interfaces before creating new templates.
Example:
\begin{Verbatim}
detect_dummy() {
[ wifi-device = "$(config_get dummydev type)" ] && return 0
cat <<EOF
config wifi-device dummydev
option type dummy
# REMOVE THIS LINE TO ENABLE WIFI:
option disabled 1
config wifi-iface
option device dummydev
option mode ap
option ssid OpenWrt
EOF
}
\end{Verbatim}