Question, i.MX6Q IRQ handling(Linux)

[SLICE]

Dear team,

I would like to ask about IRQ of i.MX6 on Linux.

Now my customer is using GPIO (GPIO(1,30)) of i.MX6Q as IRQ input on Linux(3.14.28).

And they saw IRQ#190 is used for that. They found that from the result of issuing “cat /proc/interrupts” command.

Because they want to assign the IRQ#190 into other CPU core, CPU-1, they issued “echo 2> /proc/irq/190/smp_affinity”.

Then error occurred as below.

-sh : echo : write error : Input/output error

They feel the IRQ#190 might be incorrect.

Please show me how to assign the IRQ to other CPU core.

And please show us how to change the priority of IRQ also.

Thanks,

Miyamoto

[SLICE]

Dear team,

My customer found the actual IRQ# on the Linux kernel 3.14.28.

The IRQ from GPIO1_30 is assigned to #99.

So, we can close this.

Thanks,

Miyamoto