________________________________
From: Jarkko Nikula [mailto:jhnik...@gmail.com]
Sent: Thursday, April 30, 2009 3:06 PM
To: Shilimkar, Santosh
Cc: linux-omap@vger.kernel.org
Subject: Re: [PATCH] OMAP: sDMA: Correct the the omap_request_dma_chain()
signature
On Thu, Apr 30, 2009 at 12:18 PM, Shilimkar, Santosh
<santosh.shilim...@ti.com> wrote:
Yor tow comments....I think I answered both.....Just a
correction you comment itself.
> > You mean callback gets lch instead of chain_id as an
argument?
You mean callback **** returns *** lch instead of chain_id as
an argument?
I mean argument passed to the callback. Callback is void so not
returning anything.
if (likely(dma_chan[ch].callback != NULL))
dma_chan[ch].callback(ch, status, dma_chan[ch].data);
My ***return ** was from the dma user point of view and not the
fucntion return :). Anyway the point is callback first argument is dma channel
nubmer and not chain_id. So User will get the channel number and not chain_id
via callback.
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