Messages in this thread | | | Date | Mon, 8 Nov 1999 11:19:56 -0500 (EST) | From | "Richard B. Johnson" <> | Subject | Re: linux interrupt handling problem |
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On Mon, 8 Nov 1999, Roman Zippel wrote:
> Hi, > > On the m68k mailing list we have a discussion about portability of > interrupts. The main problem is the possible use of sti() in interrupt > handler. > [SNIPPED info]
This should work if you must enable interrupts in the interrupt handler.
typedef struct { ........; ........; int busy; } INFO;
static void device_isr (int irq, void *p, struct pt_regs *regs) { INFO *inf = (INFO *) p; if(inf->busy++) return; while(inf->busy--) /* Check this with interrupts off */ do_stuff(); /* If necessary with interrupts enabled */ return; }
Cheers, Dick Johnson
Penguin : Linux version 2.3.13 on an i686 machine (400.59 BogoMips). Warning : It's hard to remain at the trailing edge of technology.
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