[Orinoco-users] Intersil (AMBIT) Prism 2.5, 3872 chipset

[Roberto Guida]

Hello everyone,

my lspci -vv output is:

02:05.0 Network controller: Intersil Corporation Prism 2.5 Wavelan
chipset (rev 01)
Subsystem: AMBIT Microsystem Corp.: Unknown device 0200
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

TAbort- <TAbort- <MAbort- >SERR- <PERR-

Latency: 64, cache line size 10
Interrupt: pin A routed to IRQ 11
Region 0: Memory at e0500000 (32-bit, prefetchable) [size=4K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

my lspci -n output is:

02:05.0 Class 0280: 1260:3872 (rev 01)

Do someone know if orinoco_pci supports it?
because after have loaded the driver into the kernel i get,

dmesg | grep eth0 gives as output:

eth0: Hardware identity 8022:0000:0001:0000
eth0: Station identity 001f:0006:0001:0005
eth0: Firmware determined as Intersil 1.5.6
eth0: Ad-hoc demo mode supported
eth0: IEEE standard IBSS ad-hoc mode supported
eth0: WEP supported, 104-bit key
eth0: MAC address 00:02:8A:A0:83:D6
eth0: Station name "Prism I"
eth0: ready
eth0: New link status: Disconnected (0002)
eth0: no IPv6 routers present

but i cannot scan for AP, i cannot see any network, i cannot connect to
any router/AP;

i.e.:

iwlist scanning | grep eth0
eth0 No scan results

here is the output of dmesg grepped for orinoco:

dmesg | grep orinoco

orinoco 0.15rc2STA (David Gibson <***@gibson.dropbear.id.au>, Pavel
Roskin <***@gnu.org>, et al)
orinoco_pci 0.15rc2STA (Pavel Roskin <***@gnu.org>, David Gibson
<***@gibson.dropbear.id.au> & Jean Tourrilhes <***@hpl.hp.com>)
orinoco_pci: Detected PCI device 0000:02:05.0, memory
0xe0500000-0xe0500fff, irq 11

any ideas? thanx
Rob

[Pavel Roskin]

Hello!

Post by Roberto Guida
02:05.0 Class 0280: 1260:3872 (rev 01)
Do someone know if orinoco_pci supports it?

Yes, it does.

Post by Roberto Guida
because after have loaded the driver into the kernel i get,
eth0: Hardware identity 8022:0000:0001:0000
eth0: Station identity 001f:0006:0001:0005
eth0: Firmware determined as Intersil 1.5.6
eth0: Ad-hoc demo mode supported
eth0: IEEE standard IBSS ad-hoc mode supported
eth0: WEP supported, 104-bit key
eth0: MAC address 00:02:8A:A0:83:D6
eth0: Station name "Prism I"
eth0: ready
eth0: New link status: Disconnected (0002)
eth0: no IPv6 routers present

That confirms that the device is recognized and the firmware is present.
Moreover, the link status is only printed from the interrupt handler,
which confirms that the interrupt is working.

Post by Roberto Guida
but i cannot scan for AP, i cannot see any network, i cannot connect to
any router/AP;
iwlist scanning | grep eth0
eth0 No scan results

Maybe the signal is low and you don't have an antenna. In any case, you
would get a different message if the scanning command were ignored.

[Roberto Guida]

Post by Pavel Roskin
Hello!

Hello! thank you for your reply!

Post by Pavel Roskin
That confirms that the device is recognized and the firmware is present.
Moreover, the link status is only printed from the interrupt handler,
which confirms that the interrupt is working.

Post by Roberto Guida
but i cannot scan for AP, i cannot see any network, i cannot connect to
any router/AP;
iwlist scanning | grep eth0
eth0 No scan results

Maybe the signal is low and you don't have an antenna. In any case, you
would get a different message if the scanning command were ignored.

I am very close to my router, and the signal is high, infact with
another wireless (usb, supported by another driver) it works..

any idea of what i can try to do it work?
thanx
Rob

[Paul Matthias Diderichsen]

Hi,

Post by Roberto Guida

Post by Pavel Roskin

Post by Roberto Guida
but i cannot scan for AP, i cannot see any network, i cannot connect to
any router/AP;
iwlist scanning | grep eth0
eth0 No scan results

Maybe the signal is low and you don't have an antenna. In any case, you
would get a different message if the scanning command were ignored.

I am very close to my router, and the signal is high, infact with
another wireless (usb, supported by another driver) it works..

First: I'm not a developer or expert or something. However, I've also
experienced that "iwlist scan" did not produce any results.

Results were much better with networkmanager (of gnome). You may want to
give that a try. I'm aware, that networkmanager probably relies on a
backend similar to "iwlist scan", but it seems to work better for me.

Also, try a dedicated scanner application. I used kismet and was able to
see lots of networks with that. I had to install a 0.13e (?) driver
instead of the 0.15 that came with fedora 6 in order to have monitor mode
working properly.

I hope this may serve as inspiration to solving your problem.

Kind regards,

[Pavel Roskin]

Post by Roberto Guida

Post by Pavel Roskin
Maybe the signal is low and you don't have an antenna. In any case, you
would get a different message if the scanning command were ignored.

I am very close to my router, and the signal is high, infact with
another wireless (usb, supported by another driver) it works..
any idea of what i can try to do it work?

Try monitor mode. You could use AirSnort, which would scan over all
available channels looking for AP signals.