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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-10-20 14:05:56 +0000 |
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| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-10-20 14:05:56 +0000 |
| commit | 9ad896685124fb84348254f9bafe4fa5f50d9f7b (patch) | |
| tree | 48cdf1a94f9920fa25e7ad4744cd5befe6edcc60 /nuttx/Documentation/NuttxPortingGuide.html | |
| parent | 74ec6c524d7290ebae95c7f2cb126668fdbebbd5 (diff) | |
| download | px4-nuttx-9ad896685124fb84348254f9bafe4fa5f50d9f7b.tar.gz px4-nuttx-9ad896685124fb84348254f9bafe4fa5f50d9f7b.tar.bz2 px4-nuttx-9ad896685124fb84348254f9bafe4fa5f50d9f7b.zip | |
Extend SPI interface to better handle multiple devices on same SPI bus
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2162 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/Documentation/NuttxPortingGuide.html')
| -rw-r--r-- | nuttx/Documentation/NuttxPortingGuide.html | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/nuttx/Documentation/NuttxPortingGuide.html b/nuttx/Documentation/NuttxPortingGuide.html index a9bf7df8d..dec31beea 100644 --- a/nuttx/Documentation/NuttxPortingGuide.html +++ b/nuttx/Documentation/NuttxPortingGuide.html @@ -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> |