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SubjectRe: [PATCH] iwlwifi 3945 debug parameter should be writable via sysfs
On 4/21/08, Tomas Winkler <> wrote:
> On Mon, Apr 21, 2008 at 10:10 AM, SL Baur <> wrote:
> > Is there any reason why the debug parameter in the iwlwifi driver
> > should be read-only?

> it doesn't have any affect on debug output though. This variable is
> copied to to another one in pci proble
> so unless you have 2 cards there is no use for it.
> Run time debug output can be handled through debug_level sysfs entry
> /sys/bus/pci/drivers/iwl4965/debug_level
> Yet this will be changed as well to be per device instead of per driver

O.K. The driver help recommended turning on debug for first time usage
and I was surprised when I didn't get any debug output. And I see now
that /proc/bus/pci/drivers/iwl3945/debug_level *is* writable. I'm lost in a
twisty maze of /sys directories, all subtlely different.

The driver itself works fine, but I'm having trouble getting decent speed out
of it, similar to the horrible performance I had under another operating
system, not quite as bad but still worse than a MacBook Pro. Any clues on what
I can look for to see why it so relatively slow? I'm going to put it to the WoW
test as soon as I can get a modern userland & Wine on the machine, it's running
RHEL 4 now. The machine is a Lenovo T60.


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