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Re: [ts-7000] Re: request_irq help

To:
Subject: Re: [ts-7000] Re: request_irq help
From: Eddie Dawydiuk <>
Date: Tue, 10 Apr 2007 09:24:16 -0700 (MST)
Hello,

> So, I ran "make ts7250_config && make oldconfig", and everything
> compiles well.  I even got the gps_pps example to compile using the
> 3.3.4 crosstool.
>
> However, now my code thinks it should look for header files in the
> crosstool file system rather than in the kernel source.
>
> Is there a link that I should change somewhere???

Take a look at the Makefile for the gps_pps example, you'll need to
specify to gcc not to use the standard include directories when
compiling a device driver,  also you'll need to specify the include path
to the kernel headers...

//Eddie

> --- In  "mbuynak" <> wrote:
>>
>> Awesome, thanks for helping out a noob.
>>
>>
>> --- In  Eddie Dawydiuk <eddie@> wrote:
>>>
>>> Hello,
>>>
>>>>> I'm trying to write a very simple irq handler for a ts-7250
>> board, and
>>>>> I can't seem to get the dependencies correct.
>>>>>
>>>>> Here's what I have so far
>>>>>
>>>>> #include <sched.h>
>>>>> #include <signal.h>
>>>>> #include <asm/irq.h>
>>>>> #include <stdio.h>
>>>>>
>>>>> void irq_handler(int irq, void *dev_id, struct pt_regs *regs)
>>>>> {
>>>>>   printf("handling irq %d/n",irq);
>>>>> }
>>>>>
>>>>> int main(void)
>>>>> {
>>>>>   if(request_irq(5, irq_handler, 0, "ChannelA", 0)<0)
>>>>>           printf("Can't get irq 5\n");
>>>>>   if(request_irq(6, irq_handler, 0, "ChannelB", 0)<0)
>>>>>           printf("Can't get irq 6\n");
>>>>>
>>>>>   return 0;
>>>>> }
>>>
>>> This needs to be in kernel space, you'll need to write a device
>>> driver to handle IRQs. You may want to take a look at Linux Device
>>> Drivers http://www.xml.com/ldd/chapter/book/
>>>
>>>>> because asm/arch/irqs.h doesn't exist.  How do I know which
>>>>> architecture to choose?
>>>
>>> Download the kernel source code, then run "make ts7250_config && make
>>> oldconfig". This will setup the symbolic links you need...
>>>
>>> //Eddie
>>>
>>
>
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