#8 broadcom f5d7050e works, but gets hot and looses connection

open
nobody
None
5
2009-01-03
2009-01-03
Anonymous
No

My new broadcom f5d7050E usb wlan stick works great with your driver and kernel 2.6.28.
But it gets hot during work and looses connection, even if I set txpower to 2dBm (normally 18dBm with some other usb wlan stick)

dmesg sais:

rtl8187: 8187B chip detected. Support is EXPERIMENTAL, and could damage your
hardware, use at your own risk
phy0: Selected rate control algorithm 'pid'
phy0: hwaddr 00:1c:df:36:5d:8a, RTL8187BvE V0 + rtl8225z2
usbcore: registered new interface driver rtl8187

Discussion

  • I have a LogiLink wireless USB adapter, kernel 2.6.29 (on ARM). Here is dmesg output:

    [ 7872.506744] usb 2-1.3: new high speed USB device using musb_hdrc and address 3
    [ 7872.637817] usb 2-1.3: device v0bda p8187 is not supported
    [ 7872.649414] usb 2-1.3: configuration #1 chosen from 1 choice
    [ 7872.849426] rtl8187: 8187B chip detected.
    [ 7872.859008] rtl8187: inconsistency between id with OEM info!
    [ 7872.870971] wmaster0 (rtl8187): not using net_device_ops yet
    [ 7872.883483] phy0: Selected rate control algorithm 'pid'
    [ 7872.884277] wlan0 (rtl8187): not using net_device_ops yet
    [ 7872.896697] phy0: hwaddr 00:1f:1f:36:56:0e, RTL8187BvB(early) V0 + rtl8225z2

    I am measuring current draw and it is 400 mA. The adapter gets extremely hot. Changing txpower does absolutely nothing to the current draw (although when I type iwconfig wlan0 the settings appear changed). Setting 'iwconfig wlan0 power on' does nothing. I tried 'iwconfig wlan0 power period 1' - it does not work:

    Error for wireless request "Set Power Management" (8B2C) :
    invalid argument "1".

    Apparently the driver thinks that it can change txpower, but it cannot :). Please help me to solve this problem. Is there any documentation available? Are there ways to debug wifi drivers? Thanks