02-16-2005
irq complication
hi,
i looked around already and had no luck finding anything.
Im trying ot install a wpc11v3 linksys wireless card, and i have been for about a week now.
Im near certain i have figured out my problem. When i plug in my card while knoppix is running, it crashes. When i plug it into the laptop and boot up, it loads the card and then crashes. Theres no way to run iwconfig or anything because my card crashes the system. I have to find a way to get the card to sit in the laptop without any crashing right. So im near certain it is a IRQ conflict between my PCI and another device. How can i configure my irq's running knoppix. knoppix is installed to my harddrive so i have no option to use any cheatcodes. everything i read pertains to cheatcodes and whatnot, and i have researched and i cant find any problems like this with IRQ's.
Im using a toshiba satellite 2540cds laptop. i checked the bios and there is no IRQ option in there. Also during hte boot option i see something lke irq error pci=irq something like that im not certain. I'll have to double check that.
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LEARN ABOUT REDHAT
wavelan
WAVELAN(4) Kernel Interfaces Manual WAVELAN(4)
NAME
wavelan - AT&T GIS WaveLAN ISA device driver
SYNOPSIS
insmod wavelan_cs.o [io=B,B..] [ irq=I,I..] [name=N,N..]
DESCRIPTION
wavelan is the low-level device driver for the NCR / AT&T / Lucent WaveLAN ISA and Digital (DEC) RoamAbout DS wireless ethernet adapter.
This driver is available as a module or might be compiled in the kernel. This driver supports multiple cards in both forms (up to 4) and
allocates the next available ethernet device (eth0..eth#) for each card found, unless a device name is explicitly specified (see below).
This device name will be reported in the kernel log file with the MAC address, NWID and frequency used by the card.
PARAMETERS
This section apply to the module form (parameters passed on the insmod(8) command line). If the driver is included in the kernel, use the
ether=IRQ,IO,NAME syntax on the kernel command line.
io Specify the list of base address where to search for wavelan cards (setting by dip switch on the card). If you don't specify any io
address, the driver will scan 0x390 and 0x3E0 addresses, which might conflict with other hardware...
irq Set the list of irq that each wavelan card should use (the value is saved in permanent storage for future use).
name Set the list of name to be used for each wavelan cards device (name used by ifconfig(8)).
WIRELESS EXTENSIONS
Use iwconfig(8) to manipulate wireless extensions.
NWID (or domain)
Set the network ID [0 to FFFF] or disable it [off]. As the NWID is stored in the card Permanent Storage Area, it will be reuse at any fur-
ther 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...
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 spec-
trum) [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 and Level threshold
Enable you the define the quality and level 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.
SPECIFIC NOTES
This driver will fail to detect 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
Bruce Janson - bruce@cs.usyd.edu.au
Jean Tourrilhes - jt@hplb.hpl.hp.com
(+ others - see source code for details)
SEE ALSO
wavelan_cs(4), ifconfig(8), insmod(8), iwconfig(8), iwspy(8), iwpriv(8)
Univ. of Sydney (Basser Dep. of Comp. Sci.) 1996-10-22 WAVELAN(4)