GNU/Linux |
RedHat 9.0(Shrike) |
|
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ray_cs(4) |
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ray_cs − Raylink wireless LAN − PCMCIA card device driver
insmod ray_cs [essid=string] [irq_mask=n] [net_type=[0-1]] [ray_debug=[0-5]] [phy_addr=xNNNNNNNNNNNN] [hop_dwell=n] [beacon_period=n] [psm=[0-1]] [translate=[0-1]] [country=[1-8]] [sniffer=[0-1]] [bc=[0-1]]
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/pcmcia/ray_cs.opts.
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
multiple 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 understand 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.
Corey Thomas − corey@world.std.com
cardmgr(8), pcmcia(5), ifconfig(8).
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ray_cs(4) | ![]() |