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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2020/07/03 17:40:23 UTC

[GitHub] [incubator-nuttx] Ouss4 commented on issue #1356: drivers: mtd: align spi and qspi

Ouss4 commented on issue #1356:
URL: https://github.com/apache/incubator-nuttx/issues/1356#issuecomment-653633067


   > That's pretty much the same way how these kind of things are implemented in Linux kernel.
   
   This is also used in many drivers in NuttX, where usually the board logic provides the detail of the transfer to the driver through a similar `ops` structure.
   There is also another way where the base driver and the different transfer protocols are implemented separately. (ex [the ssd1306 LCD](https://github.com/apache/incubator-nuttx/blob/master/drivers/lcd/ssd1306_base.c)).  This second method is convenient when the protocols are somewhat independent from the board and can be implemented without too much custom logic from the board part.
   
   Either could be used for the MTD drivers.  One possible complexity is different commands for SPI and QSPI and dummy cycles required.


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