On Tuesday 14 October 2008 03:20:39 Pavel Roskin wrote: > Quoting Christian Lamparter <chunkeey@xxxxxx>: > > > I ask again: > > What Card/MAC & RF-Chip do you have? Indigo/Duette/Firsbee or XBow? > > Sorry if I missed your question. np > > This is a MiniPCI card that has a label with "XG-600" printed on it. > The driver shows following in the kernel log: > > firmware: requesting isl3886 > p54: LM86 firmware > p54: FW rev 2.7.0.0 - Softmac protocol 4.1 > p54: unknown eeprom code : 0x1 > p54: unknown eeprom code : 0x3 > p54: unknown eeprom code : 0x1007 > p54: unknown eeprom code : 0x1008 > p54: unknown eeprom code : 0x1100 > p54: unknown eeprom code : 0x1905 > phy10: hwaddr 00:60:b3:c9:04:f2, MAC:isl3890 RF:Indigo? > phy10: Selected rate control algorithm 'pid' > udev: renamed network interface wlan1 to wlan2 > firmware: requesting isl3886 > > I understand the driver detects it as Indigo. > > # lspci -v -s 01:04.0 > 01:04.0 Network controller: Intersil Corporation ISL3890 [Prism > GT/Prism Duette]/ISL3886 [Prism Javelin/Prism Xbow] (rev 01) > Subsystem: Z-Com, Inc. XG-600 and clones Wireless Adapter > Flags: bus master, medium devsel, latency 16, IRQ 25 > Memory at 80882000 (32-bit, non-prefetchable) [size=8K] > Capabilities: [dc] Power Management version 1 > Kernel driver in use: p54pci > Kernel modules: prism54, p54pci > Alright, your eeprom says that your card is technically 802.11a capable. It has the right MAC (ISL3890 Duette) and a 5GHz Phy/Synth/RF (whatever it's called). but unfortunatly, it doesn't provide any calibration data... And that's the problem here. Since without it, p54_set_freq can't put the card into 802.11a and the card stays at the last selected channel (somewhere in the 2.4GHz spectrum!). However after p54_config returns with -EINVAL, mac80211 doesn't revert dev->conf.channel back to the original 2.4GHz setting... with your card still listening on 802.11bg channels, it could capture a beacon, or something else that is transmitted with 1MBit (hdr->rate = 0) and crash. note: hdr->rate is a u8. so: 0 - 4 = 0xfc and (0xfc & 0xf) = 0xc => 12 so, I guess we have to do two things... 1. check if calibration data includes 5GHz channels AND if it has the Phy/Synth/RF. 2. cache dev->conf.channel locally in the driver. Regards, Chr -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
