Re: [PATCH] iwlwifi 3945 debug parameter should be writable via sysfs

From: Tomas Winkler
Date: Mon Apr 21 2008 - 17:51:45 EST


On Mon, Apr 21, 2008 at 10:10 AM, SL Baur <steve@xxxxxxxxxx> wrote:
> Is there any reason why the debug parameter in the iwlwifi driver
> should be read-only?
>
> (Patch inlined and attached since I'm sure it will get whitespace
> broken).
>
>
> The debug parameter of the Intel 3945ABG driver should be writable
> via sysfs.
>
> Signed-off-by: SL Baur <steve@xxxxxxxxxx>
> ---
> This patch is against Linus' 2.6.25 release.
>
> --- linux-2.6/drivers/net/wireless/iwlwifi/iwl3945-base.c~ 2008-04-17
> 10:15:33.000000000 -0700
> +++ linux-2.6/drivers/net/wireless/iwlwifi/iwl3945-base.c 2008-04-20
> 23:49:35.000000000 -0700
> @@ -8855,7 +8855,7 @@ MODULE_PARM_DESC(disable, "manually disa
> module_param_named(hwcrypto, iwl3945_param_hwcrypto, int, 0444);
> MODULE_PARM_DESC(hwcrypto,
> "using hardware crypto engine (default 0 [software])\n");
> -module_param_named(debug, iwl3945_param_debug, int, 0444);
> +module_param_named(debug, iwl3945_param_debug, int, 0644);
> MODULE_PARM_DESC(debug, "debug output mask");
> module_param_named(disable_hw_scan, iwl3945_param_disable_hw_scan, int, 0444);
> MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
>
> -sb
>
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
Tomas
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