.\" SYNOPSIS part
.\"
.SH SYNOPSIS
-.BI "iwgetid " [interface] " [--scheme] [--ap]"
+.BI "iwgetid " [interface] " [--scheme] [--ap] [--freq] [--mode]"
+.br
+.BI " [--protocol]
.br
.\"
.\" DESCRIPTION part
not alphanumerics (like space, punctuation and control characters) are
skipped.
.br
-The resulting output is a valid Pcmcia scheme identifier (that may be used as an argument of the command
+The resulting output is a valid Pcmcia scheme identifier (that may be
+used as an argument of the command
.BR "cardctl scheme" ).
This format is also ideal when using the result of iwgetid as a
variable in
.I Access Point
or the
.IR Cell .
+.TP
+.B --freq
+Display the current
+.I frequency
+or
+.I channel
+used by the interface.
+.TP
+.B --mode
+Display the current
+.I mode
+of the interface.
+.TP
+.B --protocol
+Display the
+.I protocol name
+of the interface. This allow to identify all the cards that are
+compatible with each other and accept the same type of
+configuration.
+.br
+This can also be used to
+.I check Wireless Extension support
+on the interface, as this is the only attribute that all drivers
+supporting Wireless Extension are mandated to support.
.\"
.\" SEE ALSO part
.\"