Re: [Oe] Re: /proc/sys/board patch for SIMpad

Hi,

On Friday 17 September 2004 11:47, Michael 'Mickey' Lauer wrote:
> Wouldn't it be nice override the kernels behaviour for some special
> purposes?
I just checked this. The only routine in the simpads kernel touching the led 
is simpad_leds_event/leds_event. It looks like these are called during 
initialisation and during suspend/resume which looks fine to me.

But this routine is also called e.g. whenever the cpu is idle. And whenever 
simpad_leds_event is called, it updates the state of the green led (instead 
of only updating the hardware state if the event is led_start/led_stop).

So the kernel sets the led state every few milliseconds and thus preventing 
user space apps from chaning the state permanently.

The question is: Do we really want this led to be user accessible? If a 
program switches the display and led off, the user might think the simpad is 
in suspend, while it's in fact powered up and e.g. draining the battery.

Ciao,
  Till

-- 
Dr.-Ing. Till Harbaum                       Tel.:  +49 721 4998963
BeeCon GmbH                                 Fax:   +49 721 4998962
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[email protected]                           http://www.beecon.de



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