wavelan_cs is the low-level Card Services driver for the NCR / AT&T / Lucent
WaveLAN PCMCIA and Digital (DEC)
RoamAbout DS wireless ethernet adapter. When this driver is attached to a card, it
allocates the next available ethernet device (eth0..eth#). This
device name will be passed on to
cardmgr(8) for the card configuration, and reported in the kernel log file with
the MAC address, NWID and frequency used by the card.
PARAMETERS
irq_list= i,j,...
Specifies the set of interrupts that may be allocated by this driver.
mem_speed= n
Sets the access speed of the shared memory window, in nanoseconds.
The default is 0 (i.e., no extra wait states).
do_roaming= n
Enables or disables roaming mode. The default is 1 (roam).
WIRELESS EXTENSIONS
Use
iwconfig(8) to manipulate wireless extensions.
Mode Set the operating mode to
Ad-Hoc or
Managed . This in fact disable or enable roaming support. This setting is not
saved in hardware.
Network ID Set the network ID
[ 0 to
FFFF ] or disable it
[ off ] or reenable it
[ on ]. As the NWID is stored in the card Permanent Storage Area, it will be
reuse at any further invocation of the driver.
Frequency & channels For the 2.4GHz 2.00 Hardware, you are able to set the frequency by
specifying one of the 10 defined channels
( 2.412, 2.422, 2.425, 2.4305, 2.432, 2.442, 2.452, 2.460, 2.462 or
2.484 ) or directly by its value. The frequency is changed immediately and
permanentely. Frequency availability depend on the regulations...
Sensitivity Signal level threshold for packet reception
[ 0 to
63 ]. Should be set according to the ambiant noise level.
Encryption key Set the encryption key
[ 0 to
FFFF-FFFF-FFFF-FFFF ]. Use
[ off ] and
[ on ] to disable and reenable the hardware encryption. This feature works
only for device with encryption option (DES or AES).
Statistics spy Set a list of MAC addresses in the driver (up to 8) and get the last
quality of link for each of those (see
iwspy(8) ). /proc/net/wireless status is the status reported by the modem.
Link quality reports the quality of the modulation on the air (direct sequence
spread spectrum) [max = 16].
Level and
Noise refer to the signal level and noise level [max = 64].
The
crypt discarded packet and
misc discarded packet counters are not implemented.
PRIVATE IOCTL
You may use
iwpriv(8) to manipulate private ioctls.
Quality threshold Enable you the define the quality threshold used by the modem (packet
below that level are discarded).
Histogram This functionality allow to set a number of signal level intervals and
to count the number of packets received in each of those defined
intervals. This distribution might be used to calculate the mean value
and standard deviation of the signal level.
OTHER FEATURES
Hot unplug support.
Power saving (use 'ifconfig down').
SPECIFIC NOTES
This driver will fail to load some
non NCR/ATT&T/Lucent Wavelan cards. If it's your case, you must look in the source code on
how to add your card to the detection routine.
Some of the mentioned features are optional. You may enable to disable
them by changing flags in the driver header and recompile.
AUTHOR
Anthony D. Joseph - adj@lcs.mit.edu
Jean Tourrilhes - jt@hplb.hpl.hp.com
(+ others - see source code for details)
