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Extend SPI interface to better handle multiple devices on same SPI bus

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2162 42af7a65-404d-4744-a932-0658087f49c3
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patacongo 2009-10-20 14:05:56 +00:00
parent 0191220ea0
commit e668f9f87b
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Documentation/NuttxPortingGuide.html
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@ -1805,6 +1805,7 @@ extern void up_ledoff(int led);
Each SPI device driver must implement an instance of <code>struct spi_ops_s</code>.
That structure defines a call table with the following methods:
<ul>
<p><code>void lock(FAR struct spi_dev_s *dev);</code></p>
<p><code>void select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, boolean selected);</code><br>
<code>uint32 setfrequency(FAR struct spi_dev_s *dev, uint32 frequency);</code><br>
<code>void setmode(FAR struct spi_dev_s *dev, enum spi_mode_e mode);</code><br>