ray_cs
ray_cs(January 20, 1999) ray_cs(January 20, 1999)
NAME
ray_cs - Raylink wireless LAN - PCMCIA card device driver
SYNOPSIS
insmod ray_cs [essid=string] [irq_mask=n] [net_type=[0-1]]
[ray_debug=[0-5]] [phy_addr=xNNNNNNNNNNNN] [hop_dwell=n] [bea-
con_period=n] [psm=[0-1]] [translate=[0-1]] [country=[1-8]] [snif-
fer=[0-1]] [bc=[0-1]]
DESCRIPTION
ray_cs is the low level Card Services device driver for the Raylink
wireless LAN PCMCIA adapter. It is normally loaded automatically by
card services according to the parameters specified in /etc/pcm-
cia/ray_cs.opts.
PARAMETERS
essid=string
ESS ID - network name to join string with maximum length of 32
chars default value = "LINUX"
irq_mask=n
linux standard 16 bit value 1bit/IRQ lsb is IRQ 0, bit 1 is IRQ
1 etc. Used to restrict choice of IRQ's to use.
net_type=n
0 = adhoc network (default) 1 = infrastructure
ray_debug=n
(0-5) larger values for more verbose logging.
phy_addr=string
string of 12 hex digits containing new MAC address. must be
started with x e.g. x00008f123456
hop_dwell=n
hop dwell time in Kilo-microseconds legal values =
16,32,64,128(default),256
beacon_period=n
Beacon period in Kilo-microseconds.
Legal values = 16,32,64,128,256(default) must be integer multi-
ple of hop dwell.
psm=n Power save mode
0 = continuously active
1 = power save mode (significantly slower)
bc=n Power save mode
0 = 802.11 timing
1 = 802.11 modified timing. Interframe spacing is slowed down
for compatibility with older Breezecom access points.
translate
0 = no translation (encapsulate frames)
1 = translation (default)
country=n
Country code
1 = USA (default)
2 = Europe
3 = Japan
4 = Korea
5 = Spain
6 = France
7 = Israel
8 = Australia
sniffer=n
0 = normal network interface - not sniffer (default)
1 = sniffer which can be used to record all network traffic
using tcpdump or similar, but no normal network use is allowed.
This is because linux has no knowledge of 802.11 headers and
cannot parse them correctly. Note that tcpdump does not under-
stand 802.11 headers, either so it can't interpret the contents,
but it can record to a file.
BUGS ray_cs can lock the machine if the card is pulled out while
active. I have never observed a crash if card is deactivated as
follows before removal:
ifconfig eth0 down
The above command assumes that the Raylink card is configured as
eth0.
This driver only does encapsulation of ethernet frames within
802.11 frames. Most vendors, including Raytheon, are moving to
a frame translation method. Translation support has been
started, but is not yet functional.
Support for defragmenting frames is not yet tested.
The ioctl support is incomplete. The hardware address cannot be
set using ifconfig yet. If a different hardware address is
needed, it may be set using the phy_addr parameter in
ray_cs.opts.
AUTHOR
Corey Thomas - corey@world.std.com
SEE ALSO
cardmgr(8), pcmcia(5), ifconfig(8).
ray_cs(January 20, 1999)
