about ohci 1394 driver

hi, i am writting ohci 1394 driver.
I have read the source code in linux kernel, it's very complicated.
I initialize the TI ohci controller like linux(But not initialize the DMA
context), install the interrupt handler.
I think there will be a interrupt when I reset the 1394 bus, but no.

the ohci 1394 driver is very complicated, can any one give me some
information about it.
any tips will be great help.

thanks.

	   
					
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On Sep 28, 3:22=A0am, "hu" <huxuelei630@n_o_s_p_a_m.gmail.com> wrote:
> hi, i am writting ohci 1394 driver.
> I have read the source code in linux kernel, it's very complicated.
> I initialize the TI ohci controller like linux(But not initialize the DMA
> context), install the interrupt handler.
> I think there will be a interrupt when I reset the 1394 bus, but no.
>
> the ohci 1394 driver is very complicated, can any one give me some
> information about it.
> any tips will be great help.

Unless you can deal with a subset of the spec, not much you can do.

Everything you need is in the linux kernel and is very complicated.
What else can I say?

On 28.09.2010 12:22, hu wrote:
> hi, i am writting ohci 1394 driver.

Why?  For what context?

> I have read the source code in linux kernel, it's very complicated.

Well, that may well be because the matter itself is very complicated. 
As a rough measure of complexity, just look at the OHCI specification 
itself: that's 160 pages of pretty dense description.  And that's just 
the generic part.