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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


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Old 07-13-2006, 02:06 PM   #1
Registered: Oct 2004
Location: Pennsylvania, USA
Distribution: Debian
Posts: 87

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2.6 kernel device registering

I run Kanotix (based on Debian unstable), with previous kernel the default 2.6.16 x86. I use a usb wireless card which is supported out of the box by linux_wlan_ng and had no problems.

I downloaded the most recent kernel source,, and the most recent (as far as I could find) linux_wlan_ng. I built, installed, and booted into the kernel. I built and installed the linux_wlan_ng module. modprobe prism2_usb worked, the driver was listed when I ran lsmod.

But I couldn't find wlan0 in the /dev or /sys trees. I rebooted once, no dice. I rebooted again, and now I have wlan0 running just fine.

I really want to understand what made it work on the second and subsequent reboots that was missing the first time around. Can anyone explain it or point me to a website that describes the situation and/or how device drivers populate the /dev and /sys trees in the 2.6 kernels?



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