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List:       linux-arm-kernel
Subject:    interrupt from interrupt
From:       Thomas Surrel <thomas.surrel () lgm ! fr>
Date:       2005-05-23 7:37:02
Message-ID: 4291881E.9060204 () lgm ! fr
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Hi,

I'm using a 2.4.27 kernel on a AT91RM9200.
I'm trying to trigger a SPI tranfer when i receive an interrupt on a 
port. But i get a "Scheduling in interrupt" error if i do this on the 
interrupt routine, or in a tasklet.

I guess the problem is that the SPI transfert uses interrupts itself, as 
it calls wait_on_completion() at the start of the transfer, and 
complete() in an interrupt routine.

So, what mechanism would allow me to trigger a function involving 
interrupts from an interrupt routine ?

Thanks in advance for any help !

Thomas

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