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[ts-7000] Re: request_irq help

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Subject: [ts-7000] Re: request_irq help
From: "mbuynak" <>
Date: Wed, 11 Apr 2007 14:51:23 -0000
Wow, that doesn't make a lot of sense,

What I meant to say is that I can compile and produce what seems to be
an executable, but it doesn't have the right permissions, aka, it
doesn't run.

If I make it run, it fails.  Has anyone been able to run the gps_pps
example?  

--- In  "mbuynak" <> wrote:
>
> Ok, cool, I finally got it to compile, thanks for the help.
> 
> However, it doesn't produce an executable.  It generates an
> executable, but without the correct permissions set.  
> 
> I changed them with chmod, moved it over to the board, and ran it, but
> it gives me
> 
> $ chmod 777 irq_handle
> $ ls
> irq_handle
> $ ./irq_handle
> ./irq_handle: 1: Syntax error: newline unexpected (expecting ")")
> 
> I guess the make didn't produce a binary?  Or is this error saying
> something else?
> 
> 
> 
> --- In  Eddie Dawydiuk <eddie@> wrote:
> >
> > 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" <mikestas@> 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
> > >>>
> > >>
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> >
>




 
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