http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2003-March/0143
76.html

^ that thread has the information.

I don't have oscilliscope to examine the pulse length unfortunately.

I don't know what else would be causing interrupts to be lost otherwise.

Dominic 

-----Original Message-----
From: okazaki [mailto:[EMAIL PROTECTED] 
Sent: 06 September 2004 14:56
To: Dominic Evans
Subject: Re: isp1161 ISOC timeout problems

Hi Dominic Evans.

>//this chip (isp116x) gives a pulse of 167ns on the interrupt, pxa250 
>requires 1000ns //so you must use level triggered for pxa250 or extra 
>hardware to extend the pulse
It sounds JOKE to me.
Because SOF intterupt generates every 1m second(= 1000ns).
That is, interrupt signal is not stay LOW LEVEL. 
Is it really?

Adsynori





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