Re: how to process data recvd from a device that wont give interrupts

Hi... On Thu, Oct 4, 2012 at 7:03 PM, devendra.aaru <devendra.aaru@gmail.com> wrote:

Hi all,

I found that you can use a kernel timer and poll for the hardware interrupt registers whether the interrupt flag is set or not,

but this will take atleast some good amount of CPU.

yeah, thing is, as you know, timer fires interrupt and CPU will certainly have to service it. So, it's impossible to work around it IMHO

are there any ways other than using the kernel timer?

perhaps something less intrusive like creating kernel thread and its function is solely checking register state? -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com