Which WLAN driver to use?

[Elias Diem <lists@webconect.ch>]

Hi all,

I installed Debian 6 on my HP Pavilion Netbook. Unfortunately the WiFi Card is
not working.  I plan to install a driver manually but don't know which driver
to grab.

lspci -vv tells me

02:00.0 Network controller: RaLink Device 539f
	Subsystem: Hewlett-Packard Company Device 1637
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 5
	Region 0: Memory at f0100000 (32-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>

among other things. It only tells the number 539f. Does anybody have a
suggestion which driver to use?

Thanks Elias