linux-kernel - Could you help on an issue with SPI based on GPIO ?

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Message-ID: <CADvmyBdjTKCj0YfBM2rcqwy80vwNs1wtAXbWMF7cPXm4FZe4kw@mail.gmail.com>
Date:	Mon, 12 Mar 2012 11:43:45 +0800
From:	"peter.meng" <mengsanshui@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Could you help on an issue with SPI based on GPIO ?

HI,

I have a question related SPI .
I used SPI based on GPIO(bitbang) that has MOSI/MISO/CLK/CS  line .
But i found my spi slave device that has a interrupt line .
I want to know how to use GPIO simulate  interrupt on SPI master side  .
How to get the interrupt status from GPIO  and what thing should be
done when interrupt happens ?

Thanks a lot.
Best Regards .
Peter Meng
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